Merge e514052f72 into 19dc2873c5

platformio.ini

@@ -202,3 +202,5 @@ lib_deps =
 	sensirion/Sensirion Core@0.7.1
 	# renovate: datasource=custom.pio depName=Sensirion I2C SCD4x packageName=sensirion/library/Sensirion I2C SCD4x
 	sensirion/Sensirion I2C SCD4x@1.1.0
+	# renovate: datasource=custom.pio depName=Adafruit ADS1X15 packageName=adafruit/library/Adafruit ADS1X15 Library
+	adafruit/Adafruit ADS1X15@2.5.0

src/configuration.h

@@ -195,6 +195,10 @@ along with this program.  If not, see <http://www.gnu.org/licenses/>.
 #define LTR390UV_ADDR 0x53
 #define XPOWERS_AXP192_AXP2101_ADDRESS 0x34 // same adress as TCA8418
 #define PCT2075_ADDR 0x37
+#define ADS1X15_ADDR 0x48 // same address as FT6336U
+#define ADS1X15_ADDR_ALT1 0x49
+#define ADS1X15_ADDR_ALT2 0x4A
+#define ADS1X15_ADDR_ALT3 0x4B
 
 // -----------------------------------------------------------------------------
 // ACCELEROMETER

src/detect/ScanI2C.h

@@ -75,6 +75,8 @@ class ScanI2C
         TCA8418KB,
         PCT2075,
         BMM150,
+        ADS1X15,
+        ADS1X15_ALT,
     } DeviceType;
 
     // typedef uint8_t DeviceAddress;

src/detect/ScanI2CTwoWire.cpp

@@ -109,6 +109,75 @@ uint16_t ScanI2CTwoWire::getRegisterValue(const ScanI2CTwoWire::RegisterLocation
     return value;
 }
 
+bool ScanI2CTwoWire::setClockSpeed(I2CPort port, uint32_t speed) {
+
+    DeviceAddress addr(port, 0x00);
+    TwoWire *i2cBus;
+
+#if WIRE_INTERFACES_COUNT == 2
+    if (port == I2CPort::WIRE1) {
+        i2cBus = &Wire1;
+    } else {
+#endif
+        i2cBus = &Wire;
+#if WIRE_INTERFACES_COUNT == 2
+    }
+#endif
+
+    return i2cBus->setClock(speed);
+}
+
+uint32_t ScanI2CTwoWire::getClockSpeed(I2CPort port) {
+
+    DeviceAddress addr(port, 0x00);
+    TwoWire *i2cBus;
+
+#if WIRE_INTERFACES_COUNT == 2
+    if (port == I2CPort::WIRE1) {
+        i2cBus = &Wire1;
+    } else {
+#endif
+        i2cBus = &Wire;
+#if WIRE_INTERFACES_COUNT == 2
+    }
+#endif
+
+    return i2cBus->getClock();
+}
+
+/// for SEN5X detection
+String readSEN5xProductName(TwoWire* i2cBus, uint8_t address) {
+    uint8_t cmd[] = { 0xD0, 0x14 };
+    uint8_t response[48] = {0};
+
+    i2cBus->beginTransmission(address);
+    i2cBus->write(cmd, 2);
+    if (i2cBus->endTransmission() != 0) return "";
+
+    delay(20);
+    if (i2cBus->requestFrom(address, (uint8_t)48) != 48) return "";
+
+    for (int i = 0; i < 48 && i2cBus->available(); ++i) {
+        response[i] = i2cBus->read();
+    }
+
+    char productName[33] = {0};
+    int j = 0;
+    for (int i = 0; i < 48 && j < 32; i += 3) {
+        if (response[i] >= 32 && response[i] <= 126)
+            productName[j++] = response[i];
+        else
+            break;
+
+        if (response[i + 1] >= 32 && response[i + 1] <= 126)
+            productName[j++] = response[i + 1];
+        else
+            break;
+    }
+
+    return String(productName);
+}
+
 #define SCAN_SIMPLE_CASE(ADDR, T, ...)                                                                                           \
     case ADDR:                                                                                                                   \
         logFoundDevice(__VA_ARGS__);                                                                                             \
@@ -495,7 +564,16 @@ void ScanI2CTwoWire::scanPort(I2CPort port, uint8_t *address, uint8_t asize)
                 }
                 break;
 
-            case 0x48: {
+            case 0x48: { // same as ADS1X15 main address
+
+                // ADS1X15 default config register is 8583h
+                registerValue = getRegisterValue(ScanI2CTwoWire::RegisterLocation(addr, 0x01), 2);
+                if (registerValue == 0x8583) {
+                    type = ADS1X15;
+                    logFoundDevice("ADS1X15", (uint8_t)addr.address);
+                    break;
+                }
+
                 i2cBus->beginTransmission(addr.address);
                 uint8_t getInfo[] = {0x5A, 0xC0, 0x00, 0xFF, 0xFC};
                 uint8_t expectedInfo[] = {0xa5, 0xE0, 0x00, 0x3F, 0x19};
@@ -515,6 +593,17 @@ void ScanI2CTwoWire::scanPort(I2CPort port, uint8_t *address, uint8_t asize)
                 break;
             }
 
+            case ADS1X15_ADDR_ALT1:
+            case ADS1X15_ADDR_ALT2:
+            case ADS1X15_ADDR_ALT3:
+                // ADS1X15 default config register is 8583h
+                registerValue = getRegisterValue(ScanI2CTwoWire::RegisterLocation(addr, 0x01), 2);
+                if (registerValue == 0x8583) {
+                    type = ADS1X15_ALT;
+                    logFoundDevice("ADS1X15_ALT", (uint8_t)addr.address);
+                    break;
+                }
+
             default:
                 LOG_INFO("Device found at address 0x%x was not able to be enumerated", (uint8_t)addr.address);
             }

src/detect/ScanI2CTwoWire.h

@@ -29,6 +29,9 @@ class ScanI2CTwoWire : public ScanI2C
 
     size_t countDevices() const override;
 
+    bool setClockSpeed(ScanI2C::I2CPort, uint32_t);
+    uint32_t getClockSpeed(ScanI2C::I2CPort);
+
   protected:
     FoundDevice firstOfOrNONE(size_t, DeviceType[]) const override;
 

src/main.cpp

@@ -472,6 +472,7 @@ void setup()
     Wire.setSCL(I2C_SCL);
     Wire.begin();
 #elif defined(I2C_SDA) && !defined(ARCH_RP2040)
+    LOG_INFO("Starting Bus with (SDA) %d and (SCL) %d: ", I2C_SDA, I2C_SCL);
     Wire.begin(I2C_SDA, I2C_SCL);
 #elif defined(ARCH_PORTDUINO)
     if (settingsStrings[i2cdev] != "") {
@@ -530,6 +531,26 @@ void setup()
     i2cScanner->scanPort(ScanI2C::I2CPort::WIRE);
 #endif
 
+#ifdef I2C_CLOCK_SPEED
+    uint32_t currentClock;
+    currentClock = i2cScanner->getClockSpeed(ScanI2C::I2CPort::WIRE);
+    LOG_INFO("Clock speed: %uHz on WIRE", currentClock);
+    LOG_DEBUG("Setting Wire with defined clock speed, %uHz...", I2C_CLOCK_SPEED);
+    if(!i2cScanner->setClockSpeed(ScanI2C::I2CPort::WIRE, I2C_CLOCK_SPEED)) {
+        LOG_ERROR("Unable to set clock speed on WIRE");
+    } else {
+
+        currentClock = i2cScanner->getClockSpeed(ScanI2C::I2CPort::WIRE);
+        LOG_INFO("Set clock speed: %uHz on WIRE", currentClock);
+    }
+    // LOG_DEBUG("Starting Wire with defined clock speed, %d...", I2C_CLOCK_SPEED);
+    // if(!i2cScanner->setClockSpeed(ScanI2C::I2CPort::WIRE1, I2C_CLOCK_SPEED)) {
+    //     LOG_ERROR("Unable to set clock speed on WIRE1");
+    // } else {
+    //     LOG_INFO("Set clock speed: %d on WIRE1", I2C_CLOCK_SPEED);
+    // }
+#endif
+
     auto i2cCount = i2cScanner->countDevices();
     if (i2cCount == 0) {
         LOG_INFO("No I2C devices found");
@@ -682,7 +703,8 @@ void setup()
     scannerToSensorsMap(i2cScanner, ScanI2C::DeviceType::RAK12035, meshtastic_TelemetrySensorType_RAK12035);
     scannerToSensorsMap(i2cScanner, ScanI2C::DeviceType::PCT2075, meshtastic_TelemetrySensorType_PCT2075);
     scannerToSensorsMap(i2cScanner, ScanI2C::DeviceType::SCD4X, meshtastic_TelemetrySensorType_SCD4X);
-
+    scannerToSensorsMap(i2cScanner, ScanI2C::DeviceType::ADS1X15, meshtastic_TelemetrySensorType_ADS1X15);
+    scannerToSensorsMap(i2cScanner, ScanI2C::DeviceType::ADS1X15_ALT, meshtastic_TelemetrySensorType_ADS1X15_ALT);
     i2cScanner.reset();
 #endif
 

src/modules/Modules.cpp

@@ -221,11 +221,7 @@ void setupModules()
 // TODO: How to improve this?
 #if HAS_SENSOR && !MESHTASTIC_EXCLUDE_ENVIRONMENTAL_SENSOR
         new EnvironmentTelemetryModule();
-#if __has_include("Adafruit_PM25AQI.h")
+        new AirQualityTelemetryModule();
-        if (nodeTelemetrySensorsMap[meshtastic_TelemetrySensorType_PMSA003I].first > 0) {
-            new AirQualityTelemetryModule();
-        }
-#endif
 #if !MESHTASTIC_EXCLUDE_HEALTH_TELEMETRY
         if (nodeTelemetrySensorsMap[meshtastic_TelemetrySensorType_MAX30102].first > 0 ||
             nodeTelemetrySensorsMap[meshtastic_TelemetrySensorType_MLX90614].first > 0) {

src/modules/Telemetry/AirQualityTelemetry.cpp

@@ -1,36 +1,53 @@
 #include "configuration.h"
 
-#if HAS_TELEMETRY && !MESHTASTIC_EXCLUDE_ENVIRONMENTAL_SENSOR && __has_include("Adafruit_PM25AQI.h")
+#if HAS_TELEMETRY && !MESHTASTIC_EXCLUDE_ENVIRONMENTAL_SENSOR
 
 #include "../mesh/generated/meshtastic/telemetry.pb.h"
-#include "AirQualityTelemetry.h"
 #include "Default.h"
+#include "AirQualityTelemetry.h"
 #include "MeshService.h"
 #include "NodeDB.h"
 #include "PowerFSM.h"
 #include "RTC.h"
 #include "Router.h"
-#include "detect/ScanI2CTwoWire.h"
+#include "UnitConversions.h"
+#include "graphics/SharedUIDisplay.h"
+#include "graphics/images.h"
 #include "main.h"
+#include "sleep.h"
 #include <Throttle.h>
 
-#ifndef PMSA003I_WARMUP_MS
+#if __has_include(<Adafruit_PM25AQI.h>)
-// from the PMSA003I datasheet:
+#include "Sensor/PMSA003ISensor.h"
-// "Stable data should be got at least 30 seconds after the sensor wakeup
+PMSA003ISensor pmsa003iSensor;
-// from the sleep mode because of the fan’s performance."
+#else
-#define PMSA003I_WARMUP_MS 30000
+NullSensor pmsa003iSensor;
 #endif
 
 int32_t AirQualityTelemetryModule::runOnce()
 {
+    if (sleepOnNextExecution == true) {
+        sleepOnNextExecution = false;
+        uint32_t nightyNightMs = Default::getConfiguredOrDefaultMs(moduleConfig.telemetry.air_quality_interval,
+                                                                   default_telemetry_broadcast_interval_secs);
+        LOG_DEBUG("Sleeping for %ims, then awaking to send metrics again.", nightyNightMs);
+        doDeepSleep(nightyNightMs, true, false);
+    }
+
+    uint32_t result = UINT32_MAX;
+
     /*
         Uncomment the preferences below if you want to use the module
         without having to configure it from the PythonAPI or WebUI.
     */
 
     // moduleConfig.telemetry.air_quality_enabled = 1;
+    // TODO there is no config in module_config.proto for air_quality_screen_enabled. Reusing environment one, although it should have its own
+    // moduleConfig.telemetry.environment_screen_enabled = 1;
+    // moduleConfig.telemetry.air_quality_interval = 15;
 
-    if (!(moduleConfig.telemetry.air_quality_enabled)) {
+    if (!(moduleConfig.telemetry.air_quality_enabled  || moduleConfig.telemetry.environment_screen_enabled ||
+          AIR_QUALITY_TELEMETRY_MODULE_ENABLE)) {
         // If this module is not enabled, and the user doesn't want the display screen don't waste any OSThread time on it
         return disable();
     }
@@ -42,79 +59,141 @@ int32_t AirQualityTelemetryModule::runOnce()
         if (moduleConfig.telemetry.air_quality_enabled) {
             LOG_INFO("Air quality Telemetry: init");
 
-#ifdef PMSA003I_ENABLE_PIN
+            if (pmsa003iSensor.hasSensor())
-            // put the sensor to sleep on startup
+                result = pmsa003iSensor.runOnce();
-            pinMode(PMSA003I_ENABLE_PIN, OUTPUT);
-            digitalWrite(PMSA003I_ENABLE_PIN, LOW);
-#endif /* PMSA003I_ENABLE_PIN */
-
-            if (!aqi.begin_I2C()) {
-#ifndef I2C_NO_RESCAN
-                LOG_WARN("Could not establish i2c connection to AQI sensor. Rescan");
-                // rescan for late arriving sensors. AQI Module starts about 10 seconds into the boot so this is plenty.
-                uint8_t i2caddr_scan[] = {PMSA0031_ADDR};
-                uint8_t i2caddr_asize = 1;
-                auto i2cScanner = std::unique_ptr<ScanI2CTwoWire>(new ScanI2CTwoWire());
-#if defined(I2C_SDA1)
-                i2cScanner->scanPort(ScanI2C::I2CPort::WIRE1, i2caddr_scan, i2caddr_asize);
-#endif
-                i2cScanner->scanPort(ScanI2C::I2CPort::WIRE, i2caddr_scan, i2caddr_asize);
-                auto found = i2cScanner->find(ScanI2C::DeviceType::PMSA0031);
-                if (found.type != ScanI2C::DeviceType::NONE) {
-                    nodeTelemetrySensorsMap[meshtastic_TelemetrySensorType_PMSA003I].first = found.address.address;
-                    nodeTelemetrySensorsMap[meshtastic_TelemetrySensorType_PMSA003I].second =
-                        i2cScanner->fetchI2CBus(found.address);
-                    return setStartDelay();
-                }
-#endif
-                return disable();
-            }
-            return setStartDelay();
         }
-        return disable();
+
+        // it's possible to have this module enabled, only for displaying values on the screen.
+        // therefore, we should only enable the sensor loop if measurement is also enabled
+        return result == UINT32_MAX ? disable() : setStartDelay();
     } else {
         // if we somehow got to a second run of this module with measurement disabled, then just wait forever
-        if (!moduleConfig.telemetry.air_quality_enabled)
+        if (!moduleConfig.telemetry.air_quality_enabled && !AIR_QUALITY_TELEMETRY_MODULE_ENABLE) {
-            return disable();
-
-        switch (state) {
-#ifdef PMSA003I_ENABLE_PIN
-        case State::IDLE:
-            // sensor is in standby; fire it up and sleep
-            LOG_DEBUG("runOnce(): state = idle");
-            digitalWrite(PMSA003I_ENABLE_PIN, HIGH);
-            state = State::ACTIVE;
-
-            return PMSA003I_WARMUP_MS;
-#endif /* PMSA003I_ENABLE_PIN */
-        case State::ACTIVE:
-            // sensor is already warmed up; grab telemetry and send it
-            LOG_DEBUG("runOnce(): state = active");
-
-            if (((lastSentToMesh == 0) ||
-                 !Throttle::isWithinTimespanMs(lastSentToMesh, Default::getConfiguredOrDefaultMsScaled(
-                                                                   moduleConfig.telemetry.air_quality_interval,
-                                                                   default_telemetry_broadcast_interval_secs, numOnlineNodes))) &&
-                airTime->isTxAllowedChannelUtil(config.device.role != meshtastic_Config_DeviceConfig_Role_SENSOR) &&
-                airTime->isTxAllowedAirUtil()) {
-                sendTelemetry();
-                lastSentToMesh = millis();
-            } else if (service->isToPhoneQueueEmpty()) {
-                // Just send to phone when it's not our time to send to mesh yet
-                // Only send while queue is empty (phone assumed connected)
-                sendTelemetry(NODENUM_BROADCAST, true);
-            }
-
-#ifdef PMSA003I_ENABLE_PIN
-            // put sensor back to sleep
-            digitalWrite(PMSA003I_ENABLE_PIN, LOW);
-            state = State::IDLE;
-#endif /* PMSA003I_ENABLE_PIN */
-
-            return sendToPhoneIntervalMs;
-        default:
             return disable();
         }
+
+        // Wake up the sensors that need it
+#ifdef PMSA003I_ENABLE_PIN
+        if (pmsa003iSensor.hasSensor() && !pmsa003iSensor.isActive())
+            return pmsa003iSensor.wakeUp();
+#endif /* PMSA003I_ENABLE_PIN */
+
+        if (((lastSentToMesh == 0) ||
+            !Throttle::isWithinTimespanMs(lastSentToMesh, Default::getConfiguredOrDefaultMsScaled(
+                                                            moduleConfig.telemetry.air_quality_interval,
+                                                            default_telemetry_broadcast_interval_secs, numOnlineNodes))) &&
+            airTime->isTxAllowedChannelUtil(config.device.role != meshtastic_Config_DeviceConfig_Role_SENSOR) &&
+            airTime->isTxAllowedAirUtil()) {
+            sendTelemetry();
+            lastSentToMesh = millis();
+        } else if (((lastSentToPhone == 0) || !Throttle::isWithinTimespanMs(lastSentToPhone, sendToPhoneIntervalMs)) &&
+                (service->isToPhoneQueueEmpty())) {
+            // Just send to phone when it's not our time to send to mesh yet
+            // Only send while queue is empty (phone assumed connected)
+            sendTelemetry(NODENUM_BROADCAST, true);
+            lastSentToPhone = millis();
+        }
+
+#ifdef PMSA003I_ENABLE_PIN
+        pmsa003iSensor.sleep();
+#endif /* PMSA003I_ENABLE_PIN */
+
+    }
+    return min(sendToPhoneIntervalMs, result);
+}
+
+bool AirQualityTelemetryModule::wantUIFrame()
+{
+    return moduleConfig.telemetry.environment_screen_enabled;
+}
+
+void AirQualityTelemetryModule::drawFrame(OLEDDisplay *display, OLEDDisplayUiState *state, int16_t x, int16_t y)
+{
+    // === Setup display ===
+    display->clear();
+    display->setFont(FONT_SMALL);
+    display->setTextAlignment(TEXT_ALIGN_LEFT);
+    int line = 1;
+
+    // === Set Title
+    const char *titleStr = (graphics::isHighResolution) ? "Environment" : "Env.";
+
+    // === Header ===
+    graphics::drawCommonHeader(display, x, y, titleStr);
+
+    // === Row spacing setup ===
+    const int rowHeight = FONT_HEIGHT_SMALL - 4;
+    int currentY = graphics::getTextPositions(display)[line++];
+
+    // === Show "No Telemetry" if no data available ===
+    if (!lastMeasurementPacket) {
+        display->drawString(x, currentY, "No Telemetry");
+        return;
+    }
+
+    // Decode the telemetry message from the latest received packet
+    const meshtastic_Data &p = lastMeasurementPacket->decoded;
+    meshtastic_Telemetry telemetry;
+    if (!pb_decode_from_bytes(p.payload.bytes, p.payload.size, &meshtastic_Telemetry_msg, &telemetry)) {
+        display->drawString(x, currentY, "No Telemetry");
+        return;
+    }
+
+    const auto &m = telemetry.variant.air_quality_metrics;
+
+    // Check if any telemetry field has valid data
+    bool hasAny = m.has_pm10_standard || m.has_pm25_standard || m.has_pm100_standard  || m.has_pm10_environmental || m.has_pm25_environmental ||
+                  m.has_pm100_environmental;
+
+    if (!hasAny) {
+        display->drawString(x, currentY, "No Telemetry");
+        return;
+    }
+
+    // === First line: Show sender name + time since received (left), and first metric (right) ===
+    const char *sender = getSenderShortName(*lastMeasurementPacket);
+    uint32_t agoSecs = service->GetTimeSinceMeshPacket(lastMeasurementPacket);
+    String agoStr = (agoSecs > 864000) ? "?"
+                    : (agoSecs > 3600) ? String(agoSecs / 3600) + "h"
+                    : (agoSecs > 60)   ? String(agoSecs / 60) + "m"
+                                       : String(agoSecs) + "s";
+
+    String leftStr = String(sender) + " (" + agoStr + ")";
+    display->drawString(x, currentY, leftStr); // Left side: who and when
+
+    // === Collect sensor readings as label strings (no icons) ===
+    std::vector<String> entries;
+
+    if (m.has_pm10_standard)
+        entries.push_back("PM1.0: " + String(m.pm10_standard, 0) + "ug/m3");
+    if (m.has_pm25_standard)
+        entries.push_back("PM2.5: " + String(m.pm25_standard, 0) + "ug/m3");
+    if (m.has_pm100_standard)
+        entries.push_back("PM10.0: " + String(m.pm100_standard, 0) + "ug/m3");
+
+    // === Show first available metric on top-right of first line ===
+    if (!entries.empty()) {
+        String valueStr = entries.front();
+        int rightX = SCREEN_WIDTH - display->getStringWidth(valueStr);
+        display->drawString(rightX, currentY, valueStr);
+        entries.erase(entries.begin()); // Remove from queue
+    }
+
+    // === Advance to next line for remaining telemetry entries ===
+    currentY += rowHeight;
+
+    // === Draw remaining entries in 2-column format (left and right) ===
+    for (size_t i = 0; i < entries.size(); i += 2) {
+        // Left column
+        display->drawString(x, currentY, entries[i]);
+
+        // Right column if it exists
+        if (i + 1 < entries.size()) {
+            int rightX = SCREEN_WIDTH / 2;
+            display->drawString(rightX, currentY, entries[i + 1]);
+        }
+
+        currentY += rowHeight;
     }
 }
 
@@ -144,35 +223,20 @@ bool AirQualityTelemetryModule::handleReceivedProtobuf(const meshtastic_MeshPack
 
 bool AirQualityTelemetryModule::getAirQualityTelemetry(meshtastic_Telemetry *m)
 {
-    if (!aqi.read(&data)) {
+    bool valid = true;
-        LOG_WARN("Skip send measurements. Could not read AQIn");
+    bool hasSensor = false;
-        return false;
-    }
-
     m->time = getTime();
     m->which_variant = meshtastic_Telemetry_air_quality_metrics_tag;
-    m->variant.air_quality_metrics.has_pm10_standard = true;
+    m->variant.air_quality_metrics = meshtastic_AirQualityMetrics_init_zero;
-    m->variant.air_quality_metrics.pm10_standard = data.pm10_standard;
-    m->variant.air_quality_metrics.has_pm25_standard = true;
-    m->variant.air_quality_metrics.pm25_standard = data.pm25_standard;
-    m->variant.air_quality_metrics.has_pm100_standard = true;
-    m->variant.air_quality_metrics.pm100_standard = data.pm100_standard;
 
-    m->variant.air_quality_metrics.has_pm10_environmental = true;
+    if (pmsa003iSensor.hasSensor()) {
-    m->variant.air_quality_metrics.pm10_environmental = data.pm10_env;
+        // TODO - Should we check for sensor state here?
-    m->variant.air_quality_metrics.has_pm25_environmental = true;
+        // If a sensor is sleeping, we should know and check to wake it up
-    m->variant.air_quality_metrics.pm25_environmental = data.pm25_env;
+        valid = valid && pmsa003iSensor.getMetrics(m);
-    m->variant.air_quality_metrics.has_pm100_environmental = true;
+        hasSensor = true;
-    m->variant.air_quality_metrics.pm100_environmental = data.pm100_env;
+    }
 
-    LOG_INFO("Send: PM1.0(Standard)=%i, PM2.5(Standard)=%i, PM10.0(Standard)=%i", m->variant.air_quality_metrics.pm10_standard,
+    return valid && hasSensor;
-             m->variant.air_quality_metrics.pm25_standard, m->variant.air_quality_metrics.pm100_standard);
-
-    LOG_INFO("         | PM1.0(Environmental)=%i, PM2.5(Environmental)=%i, PM10.0(Environmental)=%i",
-             m->variant.air_quality_metrics.pm10_environmental, m->variant.air_quality_metrics.pm25_environmental,
-             m->variant.air_quality_metrics.pm100_environmental);
-
-    return true;
 }
 
 meshtastic_MeshPacket *AirQualityTelemetryModule::allocReply()
@@ -206,7 +270,14 @@ meshtastic_MeshPacket *AirQualityTelemetryModule::allocReply()
 bool AirQualityTelemetryModule::sendTelemetry(NodeNum dest, bool phoneOnly)
 {
     meshtastic_Telemetry m = meshtastic_Telemetry_init_zero;
+    m.which_variant = meshtastic_Telemetry_air_quality_metrics_tag;
+    m.time = getTime();
     if (getAirQualityTelemetry(&m)) {
+        LOG_INFO("Send: pm10_standard=%f, pm25_standard=%f, pm100_standard=%f, pm10_environmental=%f, pm100_environmental=%f",
+                 m.variant.air_quality_metrics.pm10_standard, m.variant.air_quality_metrics.pm25_standard,
+                 m.variant.air_quality_metrics.pm100_standard, m.variant.air_quality_metrics.pm10_environmental,
+                 m.variant.air_quality_metrics.pm100_environmental);
+
         meshtastic_MeshPacket *p = allocDataProtobuf(m);
         p->to = dest;
         p->decoded.want_response = false;
@@ -221,16 +292,46 @@ bool AirQualityTelemetryModule::sendTelemetry(NodeNum dest, bool phoneOnly)
 
         lastMeasurementPacket = packetPool.allocCopy(*p);
         if (phoneOnly) {
-            LOG_INFO("Send packet to phone");
+            LOG_INFO("Sending packet to phone");
             service->sendToPhone(p);
         } else {
-            LOG_INFO("Send packet to mesh");
+            LOG_INFO("Sending packet to mesh");
             service->sendToMesh(p, RX_SRC_LOCAL, true);
+
+            if (config.device.role == meshtastic_Config_DeviceConfig_Role_SENSOR && config.power.is_power_saving) {
+                meshtastic_ClientNotification *notification = clientNotificationPool.allocZeroed();
+                notification->level = meshtastic_LogRecord_Level_INFO;
+                notification->time = getValidTime(RTCQualityFromNet);
+                sprintf(notification->message, "Sending telemetry and sleeping for %us interval in a moment",
+                        Default::getConfiguredOrDefaultMs(moduleConfig.telemetry.air_quality_interval,
+                                                          default_telemetry_broadcast_interval_secs) /
+                            1000U);
+                service->sendClientNotification(notification);
+                sleepOnNextExecution = true;
+                LOG_DEBUG("Start next execution in 5s, then sleep");
+                setIntervalFromNow(FIVE_SECONDS_MS);
+            }
         }
         return true;
     }
-
     return false;
 }
 
+AdminMessageHandleResult AirQualityTelemetryModule::handleAdminMessageForModule(const meshtastic_MeshPacket &mp,
+                                                                                 meshtastic_AdminMessage *request,
+                                                                                 meshtastic_AdminMessage *response)
+{
+    AdminMessageHandleResult result = AdminMessageHandleResult::NOT_HANDLED;
+#if !MESHTASTIC_EXCLUDE_ENVIRONMENTAL_SENSOR_EXTERNAL
+    if (pmsa003iSensor.hasSensor()) {
+        result = pmsa003iSensor.handleAdminMessage(mp, request, response);
+        if (result != AdminMessageHandleResult::NOT_HANDLED)
+            return result;
+    }
+
+
+#endif
+    return result;
+}
+
 #endif

src/modules/Telemetry/AirQualityTelemetry.h

@@ -1,12 +1,18 @@
 #include "configuration.h"
 
-#if !MESHTASTIC_EXCLUDE_ENVIRONMENTAL_SENSOR && __has_include("Adafruit_PM25AQI.h")
+#if !MESHTASTIC_EXCLUDE_ENVIRONMENTAL_SENSOR
 
 #pragma once
+
+#ifndef AIR_QUALITY_TELEMETRY_MODULE_ENABLE
+#define AIR_QUALITY_TELEMETRY_MODULE_ENABLE 0
+#endif
+
 #include "../mesh/generated/meshtastic/telemetry.pb.h"
-#include "Adafruit_PM25AQI.h"
 #include "NodeDB.h"
 #include "ProtobufModule.h"
+#include <OLEDDisplay.h>
+#include <OLEDDisplayUi.h>
 
 class AirQualityTelemetryModule : private concurrency::OSThread, public ProtobufModule<meshtastic_Telemetry>
 {
@@ -20,18 +26,15 @@ class AirQualityTelemetryModule : private concurrency::OSThread, public Protobuf
           ProtobufModule("AirQualityTelemetry", meshtastic_PortNum_TELEMETRY_APP, &meshtastic_Telemetry_msg)
     {
         lastMeasurementPacket = nullptr;
-        setIntervalFromNow(10 * 1000);
-        aqi = Adafruit_PM25AQI();
         nodeStatusObserver.observe(&nodeStatus->onNewStatus);
-
+        setIntervalFromNow(10 * 1000);
-#ifdef PMSA003I_ENABLE_PIN
-        // the PMSA003I sensor uses about 300mW on its own; support powering it off when it's not actively taking
-        // a reading
-        state = State::IDLE;
-#else
-        state = State::ACTIVE;
-#endif
     }
+    virtual bool wantUIFrame() override;
+#if !HAS_SCREEN
+    void drawFrame(OLEDDisplay *display, OLEDDisplayUiState *state, int16_t x, int16_t y);
+#else
+    virtual void drawFrame(OLEDDisplay *display, OLEDDisplayUiState *state, int16_t x, int16_t y) override;
+#endif
 
   protected:
     /** Called to handle a particular incoming message
@@ -49,19 +52,15 @@ class AirQualityTelemetryModule : private concurrency::OSThread, public Protobuf
      */
     bool sendTelemetry(NodeNum dest = NODENUM_BROADCAST, bool wantReplies = false);
 
+    virtual AdminMessageHandleResult handleAdminMessageForModule(const meshtastic_MeshPacket &mp,
+                                                                 meshtastic_AdminMessage *request,
+                                                                 meshtastic_AdminMessage *response) override;
   private:
-    enum State {
-        IDLE = 0,
-        ACTIVE = 1,
-    };
-
-    State state;
-    Adafruit_PM25AQI aqi;
-    PM25_AQI_Data data = {0};
     bool firstTime = true;
     meshtastic_MeshPacket *lastMeasurementPacket;
     uint32_t sendToPhoneIntervalMs = SECONDS_IN_MINUTE * 1000; // Send to phone every minute
     uint32_t lastSentToMesh = 0;
+    uint32_t lastSentToPhone = 0;
 };
 
 #endif

src/modules/Telemetry/EnvironmentTelemetry.cpp

@@ -743,8 +743,6 @@ bool EnvironmentTelemetryModule::sendTelemetry(NodeNum dest, bool phoneOnly)
         LOG_INFO("Send: soil_temperature=%f, soil_moisture=%u", m.variant.environment_metrics.soil_temperature,
                  m.variant.environment_metrics.soil_moisture);
 
-        sensor_read_error_count = 0;
-
         meshtastic_MeshPacket *p = allocDataProtobuf(m);
         p->to = dest;
         p->decoded.want_response = false;

src/modules/Telemetry/EnvironmentTelemetry.h

@@ -62,7 +62,6 @@ class EnvironmentTelemetryModule : private concurrency::OSThread, public Protobu
     uint32_t sendToPhoneIntervalMs = SECONDS_IN_MINUTE * 1000; // Send to phone every minute
     uint32_t lastSentToMesh = 0;
     uint32_t lastSentToPhone = 0;
-    uint32_t sensor_read_error_count = 0;
 };
 
 #endif

src/modules/Telemetry/PowerTelemetry.cpp

@@ -22,6 +22,23 @@
 #include "graphics/ScreenFonts.h"
 #include <Throttle.h>
 
+namespace graphics
+{
+extern void drawCommonHeader(OLEDDisplay *display, int16_t x, int16_t y, const char *titleStr,  bool battery_only);
+}
+
+
+#include "Sensor/nullSensor.h"
+
+#if __has_include(<Adafruit_ADS1X15.h>)
+#include "Sensor/ADS1X15Sensor.h"
+ADS1X15Sensor ads1x15Sensor;
+ADS1X15Sensor ads1x15Sensor_alt(meshtastic_TelemetrySensorType_ADS1X15_ALT);
+#else
+NullSensor ads1x15Sensor;
+NullSensor ads1x15Sensor_alt;
+#endif
+
 namespace graphics
 {
 extern void drawCommonHeader(OLEDDisplay *display, int16_t x, int16_t y, const char *titleStr, bool battery_only);
@@ -74,6 +91,10 @@ int32_t PowerTelemetryModule::runOnce()
                 result = ina3221Sensor.isInitialized() ? 0 : ina3221Sensor.runOnce();
             if (max17048Sensor.hasSensor())
                 result = max17048Sensor.isInitialized() ? 0 : max17048Sensor.runOnce();
+            if (ads1x15Sensor.hasSensor())
+                result = ads1x15Sensor.isInitialized() ? 0 : ads1x15Sensor.runOnce();
+            if (ads1x15Sensor_alt.hasSensor())
+                result = ads1x15Sensor_alt.isInitialized() ? 0 : ads1x15Sensor_alt.runOnce();
         }
 
         // it's possible to have this module enabled, only for displaying values on the screen.
@@ -205,6 +226,10 @@ bool PowerTelemetryModule::getPowerTelemetry(meshtastic_Telemetry *m)
         valid = ina3221Sensor.getMetrics(m);
     if (max17048Sensor.hasSensor())
         valid = max17048Sensor.getMetrics(m);
+    if (ads1x15Sensor.hasSensor())
+        valid = ads1x15Sensor.getMetrics(m);
+    if (ads1x15Sensor_alt.hasSensor())
+        valid = ads1x15Sensor_alt.getMetrics(m);
 #endif
 
     return valid;
@@ -245,10 +270,17 @@ bool PowerTelemetryModule::sendTelemetry(NodeNum dest, bool phoneOnly)
     m.which_variant = meshtastic_Telemetry_power_metrics_tag;
     m.time = getTime();
     if (getPowerTelemetry(&m)) {
+        // TODO - Consider adding all 8 channels here - seems a bit much?
         LOG_INFO("Send: ch1_voltage=%f, ch1_current=%f, ch2_voltage=%f, ch2_current=%f, "
-                 "ch3_voltage=%f, ch3_current=%f",
+                 "ch3_voltage=%f, ch3_current=%f, ch4_voltage=%f",
                  m.variant.power_metrics.ch1_voltage, m.variant.power_metrics.ch1_current, m.variant.power_metrics.ch2_voltage,
-                 m.variant.power_metrics.ch2_current, m.variant.power_metrics.ch3_voltage, m.variant.power_metrics.ch3_current);
+                 m.variant.power_metrics.ch2_current, m.variant.power_metrics.ch3_voltage, m.variant.power_metrics.ch3_current,
+                 m.variant.power_metrics.ch4_voltage);
+        LOG_INFO("Send: ch5_voltage=%f, ch5_current=%f, ch6_voltage=%f, ch6_current=%f, "
+                 "ch7_voltage=%f, ch7_current=%f, ch8_voltage=%f",
+                 m.variant.power_metrics.ch5_voltage, m.variant.power_metrics.ch5_current, m.variant.power_metrics.ch6_voltage,
+                 m.variant.power_metrics.ch6_current, m.variant.power_metrics.ch7_voltage, m.variant.power_metrics.ch7_current,
+                 m.variant.power_metrics.ch8_voltage, m.variant.power_metrics.ch8_current);
 
         sensor_read_error_count = 0;
 

src/modules/Telemetry/Sensor/ADS1X15Sensor.cpp

@@ -0,0 +1,177 @@
+#include "configuration.h"
+
+#if HAS_TELEMETRY && !MESHTASTIC_EXCLUDE_ENVIRONMENTAL_SENSOR && __has_include(<Adafruit_ADS1X15.h>)
+
+#include "../mesh/generated/meshtastic/telemetry.pb.h"
+#include "ADS1X15Sensor.h"
+#include "TelemetrySensor.h"
+#include <Adafruit_ADS1X15.h>
+
+ADS1X15Sensor::ADS1X15Sensor(meshtastic_TelemetrySensorType sensorType) : TelemetrySensor(sensorType, "ADS1X15") {}
+
+int32_t ADS1X15Sensor::runOnce()
+{
+    LOG_INFO("Init sensor: %s", sensorName);
+    if (!hasSensor()) {
+        return DEFAULT_SENSOR_MINIMUM_WAIT_TIME_BETWEEN_READS;
+    }
+
+    bus = nodeTelemetrySensorsMap[sensorType].second;
+    address = (uint8_t)nodeTelemetrySensorsMap[sensorType].first;
+
+#ifdef ADS1X15_I2C_CLOCK_SPEED
+    uint32_t currentClock;
+    currentClock = bus->getClock();
+    if (currentClock != ADS1X15_I2C_CLOCK_SPEED){
+        // LOG_DEBUG("Changing I2C clock to %u", ADS1X15_I2C_CLOCK_SPEED);
+        bus->setClock(ADS1X15_I2C_CLOCK_SPEED);
+    }
+#endif
+
+    status = ads1x15.begin(address);
+
+#ifdef ADS1X15_I2C_CLOCK_SPEED
+    if (currentClock != ADS1X15_I2C_CLOCK_SPEED){
+        // LOG_DEBUG("Restoring I2C clock to %uHz", currentClock);
+        bus->setClock(currentClock);
+    }
+#endif
+
+    return initI2CSensor();
+}
+
+void ADS1X15Sensor::setup() {}
+
+struct _ADS1X15Measurement ADS1X15Sensor::getMeasurement(uint8_t ch)
+{
+    struct _ADS1X15Measurement measurement;
+
+#ifdef ADS1X15_I2C_CLOCK_SPEED
+    uint32_t currentClock;
+    currentClock = bus->getClock();
+    if (currentClock != ADS1X15_I2C_CLOCK_SPEED){
+        // LOG_DEBUG("Changing I2C clock to %u", ADS1X15_I2C_CLOCK_SPEED);
+        bus->setClock(ADS1X15_I2C_CLOCK_SPEED);
+    }
+#endif
+
+    // Reset gain
+    ads1x15.setGain(GAIN_TWOTHIRDS);
+    double voltage_range = 6.144;
+
+    // Get value with full range
+    uint16_t value = ads1x15.readADC_SingleEnded(ch);
+
+    // Dynamic gain, to increase resolution of low voltage values
+    // If value is under 4.096v increase the gain depending on voltage
+    if (value < 21845) {
+        if (value > 10922) {
+
+            // 1x gain, 4.096V
+            ads1x15.setGain(GAIN_ONE);
+            voltage_range = 4.096;
+
+        } else if (value > 5461) {
+
+            // 2x gain, 2.048V
+            ads1x15.setGain(GAIN_TWO);
+            voltage_range = 2.048;
+
+        } else if (value > 2730) {
+
+            // 4x gain, 1.024V
+            ads1x15.setGain(GAIN_FOUR);
+            voltage_range = 1.024;
+
+        } else if (value > 1365) {
+
+            // 8x gain, 0.25V
+            ads1x15.setGain(GAIN_EIGHT);
+            voltage_range = 0.512;
+
+        } else {
+
+            // 16x gain, 0.125V
+            ads1x15.setGain(GAIN_SIXTEEN);
+            voltage_range = 0.256;
+        }
+
+        // Get the value again
+        value = ads1x15.readADC_SingleEnded(ch);
+    }
+
+#ifdef ADS1X15_I2C_CLOCK_SPEED
+    if (currentClock != ADS1X15_I2C_CLOCK_SPEED){
+        // LOG_DEBUG("Restoring I2C clock to %uHz", currentClock);
+        bus->setClock(currentClock);
+    }
+#endif
+
+    measurement.voltage = (float)value / 32768 * voltage_range;
+
+    return measurement;
+}
+
+struct _ADS1X15Measurements ADS1X15Sensor::getMeasurements()
+{
+    struct _ADS1X15Measurements measurements;
+
+    // ADS1X15 has 4 channels starting from 0
+    for (int i = 0; i < 4; i++) {
+        measurements.measurements[i] = getMeasurement(i);
+    }
+
+    return measurements;
+}
+
+bool ADS1X15Sensor::getMetrics(meshtastic_Telemetry *measurement)
+{
+
+    struct _ADS1X15Measurements m = getMeasurements();
+
+    switch (sensorType)
+    {
+        case meshtastic_TelemetrySensorType_ADS1X15:
+            {
+                measurement->variant.power_metrics.has_ch1_voltage = true;
+                measurement->variant.power_metrics.has_ch2_voltage = true;
+                measurement->variant.power_metrics.has_ch3_voltage = true;
+                measurement->variant.power_metrics.has_ch4_voltage = true;
+
+                measurement->variant.power_metrics.ch1_voltage = m.measurements[0].voltage;
+                measurement->variant.power_metrics.ch2_voltage = m.measurements[1].voltage;
+                measurement->variant.power_metrics.ch3_voltage = m.measurements[2].voltage;
+                measurement->variant.power_metrics.ch4_voltage = m.measurements[3].voltage;
+                break;
+            }
+        case meshtastic_TelemetrySensorType_ADS1X15_ALT:
+            {
+                measurement->variant.power_metrics.has_ch5_voltage = true;
+                measurement->variant.power_metrics.has_ch6_voltage = true;
+                measurement->variant.power_metrics.has_ch7_voltage = true;
+                measurement->variant.power_metrics.has_ch8_voltage = true;
+
+                measurement->variant.power_metrics.ch5_voltage = m.measurements[0].voltage;
+                measurement->variant.power_metrics.ch6_voltage = m.measurements[1].voltage;
+                measurement->variant.power_metrics.ch7_voltage = m.measurements[2].voltage;
+                measurement->variant.power_metrics.ch8_voltage = m.measurements[3].voltage;
+                break;
+            }
+        default:
+            {
+                measurement->variant.power_metrics.has_ch1_voltage = true;
+                measurement->variant.power_metrics.has_ch2_voltage = true;
+                measurement->variant.power_metrics.has_ch3_voltage = true;
+                measurement->variant.power_metrics.has_ch4_voltage = true;
+
+                measurement->variant.power_metrics.ch1_voltage = m.measurements[0].voltage;
+                measurement->variant.power_metrics.ch2_voltage = m.measurements[1].voltage;
+                measurement->variant.power_metrics.ch3_voltage = m.measurements[2].voltage;
+                measurement->variant.power_metrics.ch4_voltage = m.measurements[3].voltage;
+                break;
+            }
+   }
+    return true;
+}
+
+#endif

src/modules/Telemetry/Sensor/ADS1X15Sensor.h

@@ -0,0 +1,42 @@
+#include "configuration.h"
+
+#if HAS_TELEMETRY && !MESHTASTIC_EXCLUDE_ENVIRONMENTAL_SENSOR && __has_include(<Adafruit_ADS1X15.h>)
+
+#include "../mesh/generated/meshtastic/telemetry.pb.h"
+#include "TelemetrySensor.h"
+#include <Adafruit_ADS1X15.h>
+
+#define ADS1X15_I2C_CLOCK_SPEED 100000
+
+class ADS1X15Sensor : public TelemetrySensor
+{
+  private:
+    Adafruit_ADS1X15 ads1x15;
+    TwoWire * bus;
+    uint8_t address;
+
+    // get a single measurement for a channel
+    struct _ADS1X15Measurement getMeasurement(uint8_t ch);
+
+    // get all measurements for all channels
+    struct _ADS1X15Measurements getMeasurements();
+
+  protected:
+    virtual void setup() override;
+
+  public:
+    ADS1X15Sensor(meshtastic_TelemetrySensorType sensorType = meshtastic_TelemetrySensorType_ADS1X15);
+    virtual int32_t runOnce() override;
+    virtual bool getMetrics(meshtastic_Telemetry *measurement) override;
+};
+
+struct _ADS1X15Measurement {
+    float voltage;
+};
+
+struct _ADS1X15Measurements {
+    // ADS1X15 has 4 channels
+    struct _ADS1X15Measurement measurements[4];
+};
+
+#endif

src/modules/Telemetry/Sensor/PMSA003ISensor.cpp

@@ -0,0 +1,97 @@
+#include "configuration.h"
+
+#if !MESHTASTIC_EXCLUDE_ENVIRONMENTAL_SENSOR && __has_include(<Adafruit_PM25AQI.h>)
+
+#include "../mesh/generated/meshtastic/telemetry.pb.h"
+#include "PMSA003ISensor.h"
+#include "TelemetrySensor.h"
+#include "detect/ScanI2CTwoWire.h"
+#include <Adafruit_PM25AQI.h>
+
+PMSA003ISensor::PMSA003ISensor() : TelemetrySensor(meshtastic_TelemetrySensorType_PMSA003I, "PMSA003I") {}
+
+int32_t PMSA003ISensor::runOnce()
+{
+    LOG_INFO("Init sensor: %s", sensorName);
+    if (!hasSensor()) {
+        return DEFAULT_SENSOR_MINIMUM_WAIT_TIME_BETWEEN_READS;
+    }
+
+#ifdef PMSA003I_ENABLE_PIN
+// TODO not sure why this was like this
+    sleep();
+#endif /* PMSA003I_ENABLE_PIN */
+
+    if (!pmsa003i.begin_I2C()){
+#ifndef I2C_NO_RESCAN
+        LOG_WARN("Could not establish i2c connection to AQI sensor. Rescan");
+        // rescan for late arriving sensors. AQI Module starts about 10 seconds into the boot so this is plenty.
+        uint8_t i2caddr_scan[] = {PMSA0031_ADDR};
+        uint8_t i2caddr_asize = 1;
+        auto i2cScanner = std::unique_ptr<ScanI2CTwoWire>(new ScanI2CTwoWire());
+#if defined(I2C_SDA1)
+        i2cScanner->scanPort(ScanI2C::I2CPort::WIRE1, i2caddr_scan, i2caddr_asize);
+#endif
+        i2cScanner->scanPort(ScanI2C::I2CPort::WIRE, i2caddr_scan, i2caddr_asize);
+        auto found = i2cScanner->find(ScanI2C::DeviceType::PMSA0031);
+        if (found.type != ScanI2C::DeviceType::NONE) {
+            nodeTelemetrySensorsMap[meshtastic_TelemetrySensorType_PMSA003I].first = found.address.address;
+            nodeTelemetrySensorsMap[meshtastic_TelemetrySensorType_PMSA003I].second =
+                i2cScanner->fetchI2CBus(found.address);
+            return initI2CSensor();
+        }
+#endif
+        return DEFAULT_SENSOR_MINIMUM_WAIT_TIME_BETWEEN_READS;
+    }
+    return initI2CSensor();
+}
+
+void PMSA003ISensor::setup()
+{
+#ifdef PMSA003I_ENABLE_PIN
+    pinMode(PMSA003I_ENABLE_PIN, OUTPUT);
+#endif /* PMSA003I_ENABLE_PIN */
+}
+
+#ifdef PMSA003I_ENABLE_PIN
+void PMSA003ISensor::sleep() {
+    digitalWrite(PMSA003I_ENABLE_PIN, LOW);
+    state = State::IDLE;
+}
+
+uint32_t PMSA003ISensor::wakeUp() {
+    digitalWrite(PMSA003I_ENABLE_PIN, HIGH);
+    state = State::ACTIVE;
+    return PMSA003I_WARMUP_MS;
+}
+#endif /* PMSA003I_ENABLE_PIN */
+
+bool PMSA003ISensor::isActive() {
+    return state == State::ACTIVE;
+}
+
+bool PMSA003ISensor::getMetrics(meshtastic_Telemetry *measurement)
+{
+    if (!pmsa003i.read(&pmsa003iData)) {
+        LOG_WARN("Skip send measurements. Could not read AQI");
+        return false;
+    }
+
+    measurement->variant.air_quality_metrics.has_pm10_standard = true;
+    measurement->variant.air_quality_metrics.pm10_standard = pmsa003iData.pm10_standard;
+    measurement->variant.air_quality_metrics.has_pm25_standard = true;
+    measurement->variant.air_quality_metrics.pm25_standard = pmsa003iData.pm25_standard;
+    measurement->variant.air_quality_metrics.has_pm100_standard = true;
+    measurement->variant.air_quality_metrics.pm100_standard = pmsa003iData.pm100_standard;
+
+    measurement->variant.air_quality_metrics.has_pm10_environmental = true;
+    measurement->variant.air_quality_metrics.pm10_environmental = pmsa003iData.pm10_env;
+    measurement->variant.air_quality_metrics.has_pm25_environmental = true;
+    measurement->variant.air_quality_metrics.pm25_environmental = pmsa003iData.pm25_env;
+    measurement->variant.air_quality_metrics.has_pm100_environmental = true;
+    measurement->variant.air_quality_metrics.pm100_environmental = pmsa003iData.pm100_env;
+
+    return true;
+}
+
+#endif

src/modules/Telemetry/Sensor/PMSA003ISensor.h

@@ -0,0 +1,49 @@
+#include "configuration.h"
+
+#if !MESHTASTIC_EXCLUDE_ENVIRONMENTAL_SENSOR && __has_include(<Adafruit_PM25AQI.h>)
+
+#include "../mesh/generated/meshtastic/telemetry.pb.h"
+#include "TelemetrySensor.h"
+#include "detect/ScanI2CTwoWire.h"
+#include <Adafruit_PM25AQI.h>
+
+#ifndef PMSA003I_WARMUP_MS
+// from the PMSA003I datasheet:
+// "Stable data should be got at least 30 seconds after the sensor wakeup
+// from the sleep mode because of the fan’s performance."
+#define PMSA003I_WARMUP_MS 30000
+#endif
+
+class PMSA003ISensor : public TelemetrySensor
+{
+  private:
+    Adafruit_PM25AQI pmsa003i = Adafruit_PM25AQI();
+    PM25_AQI_Data pmsa003iData = {0};
+
+  protected:
+    virtual void setup() override;
+
+  public:
+    enum State {
+        IDLE = 0,
+        ACTIVE = 1,
+    };
+
+#ifdef PMSA003I_ENABLE_PIN
+    void sleep();
+    uint32_t wakeUp();
+    // the PMSA003I sensor uses about 300mW on its own; support powering it off when it's not actively taking
+    // a reading
+    // put the sensor to sleep on startup
+    State state = State::IDLE;
+#else
+    State state = State::ACTIVE;
+#endif
+
+    PMSA003ISensor();
+    bool isActive();
+    virtual int32_t runOnce() override;
+    virtual bool getMetrics(meshtastic_Telemetry *measurement) override;
+};
+
+#endif