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https://github.com/meshtastic/firmware.git
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WIP Sen5X functions
This commit is contained in:
oscgonfer
Thomas Göttgens
parent
94df0cb636
commit
d7bb0f7cdf
@ -199,6 +199,4 @@ lib_deps =
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# renovate: datasource=custom.pio depName=Sensirion Core packageName=sensirion/library/Sensirion Core
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sensirion/Sensirion Core@0.7.1
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# renovate: datasource=custom.pio depName=Sensirion I2C SCD4x packageName=sensirion/library/Sensirion I2C SCD4x
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sensirion/Sensirion I2C SCD4x@1.1.0
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# renovate: datasource=custom.pio depName=Sensirion I2C SEN5X packageName=sensirion/library/Sensirion I2C SEN5X
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sensirion/Sensirion I2C SEN5X
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sensirion/Sensirion I2C SCD4x@1.1.0
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@ -9,10 +9,6 @@
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#if !defined(ARCH_PORTDUINO) && !defined(ARCH_STM32WL)
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#include "meshUtils.h" // vformat
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#define SEN50_NAME 48
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#define SEN54_NAME 52
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#define SEN55_NAME 53
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#endif
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bool in_array(uint8_t *array, int size, uint8_t lookfor)
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@ -114,6 +110,58 @@ uint16_t ScanI2CTwoWire::getRegisterValue(const ScanI2CTwoWire::RegisterLocation
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return value;
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}
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/// for SEN5X detection
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bool probeSEN5X(const ScanI2C::DeviceAddress& addr, TwoWire* i2cBus) {
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uint8_t cmd[] = { 0xD0, 0x33 }; // Read Serial Number command
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uint8_t rxBuf[9] = {0};
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i2cBus->beginTransmission(addr.address);
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i2cBus->write(cmd, 2);
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if (i2cBus->endTransmission() != 0)
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return false;
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delay(20); // wait for response
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if (i2cBus->requestFrom(addr.address, (uint8_t)9) != 9)
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return false;
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for (int i = 0; i < 9 && i2cBus->available(); ++i)
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rxBuf[i] = i2cBus->read();
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return true;
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}
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String readSEN5xProductName(TwoWire* i2cBus, uint8_t address) {
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uint8_t cmd[] = { 0xD0, 0x14 };
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uint8_t response[48] = {0};
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i2cBus->beginTransmission(address);
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i2cBus->write(cmd, 2);
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if (i2cBus->endTransmission() != 0) return "";
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delay(20);
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if (i2cBus->requestFrom(address, (uint8_t)48) != 48) return "";
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for (int i = 0; i < 48 && i2cBus->available(); ++i) {
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response[i] = i2cBus->read();
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}
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char productName[33] = {0};
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int j = 0;
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for (int i = 0; i < 48 && j < 32; i += 3) {
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if (response[i] >= 32 && response[i] <= 126)
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productName[j++] = response[i];
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else
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break;
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if (response[i + 1] >= 32 && response[i + 1] <= 126)
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productName[j++] = response[i + 1];
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else
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break;
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}
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return String(productName);
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}
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#define SCAN_SIMPLE_CASE(ADDR, T, ...) \
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case ADDR: \
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logFoundDevice(__VA_ARGS__); \
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@ -131,6 +179,7 @@ void ScanI2CTwoWire::scanPort(I2CPort port, uint8_t *address, uint8_t asize)
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DeviceAddress addr(port, 0x00);
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uint16_t registerValue = 0x00;
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String prod = "";
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ScanI2C::DeviceType type;
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TwoWire *i2cBus;
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#ifdef RV3028_RTC
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@ -473,40 +522,25 @@ void ScanI2CTwoWire::scanPort(I2CPort port, uint8_t *address, uint8_t asize)
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case ICM20948_ADDR_ALT: // same as MPU6050_ADDR
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// ICM20948 Register check
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registerValue = getRegisterValue(ScanI2CTwoWire::RegisterLocation(addr, 0x00), 1);
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prod = readSEN5xProductName(i2cBus, addr.address);
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if (registerValue == 0xEA) {
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type = ICM20948;
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logFoundDevice("ICM20948", (uint8_t)addr.address);
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break;
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} else {
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// TODO refurbish to find the model
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// Just a hack for the hackathon
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if (addr.address == SEN5X_ADDR) {
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if (prod.startsWith("SEN55")) {
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type = SEN5X;
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logFoundDevice("SEN5X", (uint8_t)addr.address);
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logFoundDevice("Sensirion SEN55", addr.address);
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break;
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} else if (prod.startsWith("SEN54")) {
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type = SEN5X;
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logFoundDevice("Sensirion SEN54", addr.address);
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break;
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} else if (prod.startsWith("SEN50")) {
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type = SEN5X;
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logFoundDevice("Sensirion SEN50", addr.address);
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break;
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}
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// We can get the 0xD014 register to find the model. This is not a simple task
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// There is a buffer returned - getRegisterValue is not enough (maybe)
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// registerValue = getRegisterValue(ScanI2CTwoWire::RegisterLocation(addr, 0xD014), 6);
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// Important to leave delay
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// delay(50);
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// const uint8_t nameSize = 48;
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// uint8_t name[nameSize] = ®isterValue;
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// switch(name[4]){
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// case SEN50_NAME:
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// type = SEN50;
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// break;
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// case SEN54_NAME:
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// type = SEN54;
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// break;
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// case SEN55_NAME:
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// type = SEN55;
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// break;
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// }
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if (addr.address == BMX160_ADDR) {
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type = BMX160;
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logFoundDevice("BMX160", (uint8_t)addr.address);
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@ -24,7 +24,12 @@ PMSA003ISensor pmsa003iSensor;
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NullSensor pmsa003iSensor;
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#endif
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#if __has_include(<SensirionI2CSen5x.h>)
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// Small hack
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#ifndef INCLUDE_SEN5X
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#define INCLUDE_SEN5X 1
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#endif
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#ifdef INCLUDE_SEN5X
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#include "Sensor/SEN5XSensor.h"
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SEN5XSensor sen5xSensor;
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#else
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@ -1,14 +1,169 @@
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#include "configuration.h"
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#if !MESHTASTIC_EXCLUDE_ENVIRONMENTAL_SENSOR && __has_include(<SensirionI2CSen5x.h>)
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#if !MESHTASTIC_EXCLUDE_ENVIRONMENTAL_SENSOR
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#include "../mesh/generated/meshtastic/telemetry.pb.h"
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#include "SEN5XSensor.h"
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#include "TelemetrySensor.h"
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#include <SensirionI2CSen5x.h>
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SEN5XSensor::SEN5XSensor() : TelemetrySensor(meshtastic_TelemetrySensorType_SEN5X, "SEN5X") {}
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bool SEN5XSensor::getVersion()
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{
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if (!sendCommand(SEN5X_GET_FIRMWARE_VERSION)){
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LOG_ERROR("SEN5X: Error sending version command");
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return false;
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}
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delay(20); // From Sensirion Arduino library
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uint8_t versionBuffer[12];
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size_t charNumber = readBuffer(&versionBuffer[0], 3);
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if (charNumber == 0) {
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LOG_ERROR("SEN5X: Error getting data ready flag value");
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return false;
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}
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firmwareVer = versionBuffer[0] + (versionBuffer[1] / 10);
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hardwareVer = versionBuffer[3] + (versionBuffer[4] / 10);
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protocolVer = versionBuffer[5] + (versionBuffer[6] / 10);
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LOG_INFO("SEN5X Firmware Version: %d", firmwareVer);
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LOG_INFO("SEN5X Hardware Version: %d", hardwareVer);
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LOG_INFO("SEN5X Protocol Version: %d", protocolVer);
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return true;
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}
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bool SEN5XSensor::findModel()
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{
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if (!sendCommand(SEN5X_GET_PRODUCT_NAME)) {
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LOG_ERROR("SEN5X: Error asking for product name");
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return false;
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}
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delay(50); // From Sensirion Arduino library
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const uint8_t nameSize = 48;
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uint8_t name[nameSize];
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size_t charNumber = readBuffer(&name[0], nameSize);
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if (charNumber == 0) {
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LOG_ERROR("SEN5X: Error getting device name");
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return false;
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}
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// We only check the last character that defines the model SEN5X
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switch(name[4])
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{
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case 48:
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model = SEN50;
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LOG_INFO("SEN5X: found sensor model SEN50");
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break;
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case 52:
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model = SEN54;
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LOG_INFO("SEN5X: found sensor model SEN54");
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break;
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case 53:
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model = SEN55;
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LOG_INFO("SEN5X: found sensor model SEN55");
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break;
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}
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return true;
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}
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bool SEN5XSensor::sendCommand(uint16_t command)
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{
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uint8_t nothing;
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return sendCommand(command, ¬hing, 0);
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}
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bool SEN5XSensor::sendCommand(uint16_t command, uint8_t* buffer, uint8_t byteNumber)
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{
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// At least we need two bytes for the command
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uint8_t bufferSize = 2;
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// Add space for CRC bytes (one every two bytes)
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if (byteNumber > 0) bufferSize += byteNumber + (byteNumber / 2);
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uint8_t toSend[bufferSize];
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uint8_t i = 0;
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toSend[i++] = static_cast<uint8_t>((command & 0xFF00) >> 8);
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toSend[i++] = static_cast<uint8_t>((command & 0x00FF) >> 0);
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// Prepare buffer with CRC every third byte
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uint8_t bi = 0;
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if (byteNumber > 0) {
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while (bi < byteNumber) {
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toSend[i++] = buffer[bi++];
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toSend[i++] = buffer[bi++];
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uint8_t calcCRC = CRC(&buffer[bi - 2]);
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toSend[i++] = calcCRC;
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}
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}
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// Transmit the data
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bus->beginTransmission(address);
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size_t writtenBytes = bus->write(toSend, bufferSize);
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uint8_t i2c_error = bus->endTransmission();
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if (writtenBytes != bufferSize) {
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LOG_ERROR("SEN5X: Error writting on I2C bus");
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return false;
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}
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if (i2c_error != 0) {
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LOG_ERROR("SEN5X: Error on I2c communication: %x", i2c_error);
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return false;
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}
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return true;
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}
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uint8_t SEN5XSensor::readBuffer(uint8_t* buffer, uint8_t byteNumber)
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{
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size_t readedBytes = bus->requestFrom(address, byteNumber);
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if (readedBytes != byteNumber) {
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LOG_ERROR("SEN5X: Error reading I2C bus");
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return 0;
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}
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uint8_t i = 0;
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uint8_t receivedBytes = 0;
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while (readedBytes > 0) {
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buffer[i++] = bus->read(); // Just as a reminder: i++ returns i and after that increments.
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buffer[i++] = bus->read();
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uint8_t recvCRC = bus->read();
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uint8_t calcCRC = CRC(&buffer[i - 2]);
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if (recvCRC != calcCRC) {
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LOG_ERROR("SEN5X: Checksum error while receiving msg");
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return 0;
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}
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readedBytes -=3;
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receivedBytes += 2;
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}
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return receivedBytes;
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}
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uint8_t SEN5XSensor::CRC(uint8_t* buffer)
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{
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// This code is based on Sensirion's own implementation https://github.com/Sensirion/arduino-core/blob/41fd02cacf307ec4945955c58ae495e56809b96c/src/SensirionCrc.cpp
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uint8_t crc = 0xff;
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for (uint8_t i=0; i<2; i++){
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crc ^= buffer[i];
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for (uint8_t bit=8; bit>0; bit--) {
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if (crc & 0x80)
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crc = (crc << 1) ^ 0x31;
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else
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crc = (crc << 1);
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}
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}
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return crc;
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}
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int32_t SEN5XSensor::runOnce()
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{
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LOG_INFO("Init sensor: %s", sensorName);
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@ -16,30 +171,54 @@ int32_t SEN5XSensor::runOnce()
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return DEFAULT_SENSOR_MINIMUM_WAIT_TIME_BETWEEN_READS;
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}
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sen5x.begin(*nodeTelemetrySensorsMap[sensorType].second);
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bus = nodeTelemetrySensorsMap[sensorType].second;
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// sen5x.begin(*bus);
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delay(25); // without this there is an error on the deviceReset function (NOT WORKING)
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delay(50); // without this there is an error on the deviceReset function
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uint16_t error;
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char errorMessage[256];
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error = sen5x.deviceReset();
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if (error) {
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LOG_INFO("Error trying to execute deviceReset(): ");
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errorToString(error, errorMessage, 256);
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LOG_INFO(errorMessage);
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if (!sendCommand(SEN5X_RESET)) {
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LOG_ERROR("SEN5X: Error reseting device");
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return DEFAULT_SENSOR_MINIMUM_WAIT_TIME_BETWEEN_READS;
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}
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delay(200); // From Sensirion Arduino library
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if (!findModel()) {
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LOG_ERROR("SEN5X: error finding sensor model");
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return DEFAULT_SENSOR_MINIMUM_WAIT_TIME_BETWEEN_READS;
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}
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error = sen5x.startMeasurement();
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if (error) {
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LOG_INFO("Error trying to execute startMeasurement(): ");
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errorToString(error, errorMessage, 256);
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LOG_INFO(errorMessage);
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// Check if firmware version allows The direct switch between Measurement and RHT/Gas-Only Measurement mode
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if (!getVersion()) return DEFAULT_SENSOR_MINIMUM_WAIT_TIME_BETWEEN_READS;
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if (firmwareVer < 2) {
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LOG_ERROR("SEN5X: error firmware is too old and will not work with this implementation");
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return DEFAULT_SENSOR_MINIMUM_WAIT_TIME_BETWEEN_READS;
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} else {
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status = 1;
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}
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// Detection succeeded
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state = SEN5X_IDLE;
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status = 1;
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LOG_INFO("SEN5X Enabled");
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// uint16_t error;
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// char errorMessage[256];
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// error = sen5x.deviceReset();
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// if (error) {
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// LOG_INFO("Error trying to execute deviceReset(): ");
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// errorToString(error, errorMessage, 256);
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// LOG_INFO(errorMessage);
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// return DEFAULT_SENSOR_MINIMUM_WAIT_TIME_BETWEEN_READS;
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// }
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// error = sen5x.startMeasurement();
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// if (error) {
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// LOG_INFO("Error trying to execute startMeasurement(): ");
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// errorToString(error, errorMessage, 256);
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// LOG_INFO(errorMessage);
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// return DEFAULT_SENSOR_MINIMUM_WAIT_TIME_BETWEEN_READS;
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// } else {
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// status = 1;
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// }
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return initI2CSensor();
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}
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@ -47,26 +226,24 @@ void SEN5XSensor::setup()
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{
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#ifdef SEN5X_ENABLE_PIN
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pinMode(SEN5X_ENABLE_PIN, OUTPUT);
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digitalWrite(SEN5X_ENABLE_PIN, HIGH);
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delay(25);
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#endif /* SEN5X_ENABLE_PIN */
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}
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#ifdef SEN5X_ENABLE_PIN
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void SEN5XSensor::sleep() {
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digitalWrite(SEN5X_ENABLE_PIN, LOW);
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state = State::IDLE;
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}
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// void SEN5XSensor::sleep() {
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// digitalWrite(SEN5X_ENABLE_PIN, LOW);
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// state = SSEN5XState::SEN5X_OFF;
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// }
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uint32_t SEN5XSensor::wakeUp() {
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digitalWrite(SEN5X_ENABLE_PIN, HIGH);
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state = State::ACTIVE;
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return SEN5X_WARMUP_MS;
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}
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// uint32_t SEN5XSensor::wakeUp() {
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// digitalWrite(SEN5X_ENABLE_PIN, HIGH);
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// state = SEN5XState::SEN5X_IDLE;
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// return SEN5X_WARMUP_MS;
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// }
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#endif /* SEN5X_ENABLE_PIN */
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bool SEN5XSensor::isActive() {
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return state == State::ACTIVE;
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}
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bool SEN5XSensor::getMetrics(meshtastic_Telemetry *measurement)
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{
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uint16_t error;
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@ -82,24 +259,24 @@ bool SEN5XSensor::getMetrics(meshtastic_Telemetry *measurement)
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float vocIndex;
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float noxIndex;
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error = sen5x.readMeasuredValues(
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massConcentrationPm1p0, massConcentrationPm2p5, massConcentrationPm4p0,
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massConcentrationPm10p0, ambientHumidity, ambientTemperature, vocIndex,
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noxIndex);
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// error = sen5x.readMeasuredValues(
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// massConcentrationPm1p0, massConcentrationPm2p5, massConcentrationPm4p0,
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// massConcentrationPm10p0, ambientHumidity, ambientTemperature, vocIndex,
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// noxIndex);
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if (error) {
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LOG_INFO("Error trying to execute readMeasuredValues(): ");
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errorToString(error, errorMessage, 256);
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LOG_INFO(errorMessage);
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return false;
|
||||
}
|
||||
// if (error) {
|
||||
// LOG_INFO("Error trying to execute readMeasuredValues(): ");
|
||||
// errorToString(error, errorMessage, 256);
|
||||
// LOG_INFO(errorMessage);
|
||||
// return false;
|
||||
// }
|
||||
|
||||
measurement->variant.air_quality_metrics.has_pm10_standard = true;
|
||||
measurement->variant.air_quality_metrics.pm10_standard = massConcentrationPm1p0;
|
||||
measurement->variant.air_quality_metrics.has_pm25_standard = true;
|
||||
measurement->variant.air_quality_metrics.pm25_standard = massConcentrationPm2p5;
|
||||
measurement->variant.air_quality_metrics.has_pm100_standard = true;
|
||||
measurement->variant.air_quality_metrics.pm100_standard = massConcentrationPm10p0;
|
||||
// measurement->variant.air_quality_metrics.has_pm10_standard = true;
|
||||
// measurement->variant.air_quality_metrics.pm10_standard = massConcentrationPm1p0;
|
||||
// measurement->variant.air_quality_metrics.has_pm25_standard = true;
|
||||
// measurement->variant.air_quality_metrics.pm25_standard = massConcentrationPm2p5;
|
||||
// measurement->variant.air_quality_metrics.has_pm100_standard = true;
|
||||
// measurement->variant.air_quality_metrics.pm100_standard = massConcentrationPm10p0;
|
||||
|
||||
return true;
|
||||
}
|
||||
|
||||
@ -1,38 +1,64 @@
|
||||
#include "configuration.h"
|
||||
|
||||
#if !MESHTASTIC_EXCLUDE_ENVIRONMENTAL_SENSOR && __has_include(<SensirionI2CSen5x.h>)
|
||||
#if !MESHTASTIC_EXCLUDE_ENVIRONMENTAL_SENSOR
|
||||
|
||||
#include "../mesh/generated/meshtastic/telemetry.pb.h"
|
||||
#include "TelemetrySensor.h"
|
||||
#include <SensirionI2CSen5x.h>
|
||||
#include "Wire.h"
|
||||
// #include <SensirionI2CSen5x.h>
|
||||
|
||||
#ifndef SEN5X_WARMUP_MS
|
||||
// from the SEN5X datasheet
|
||||
#define SEN5X_WARMUP_MS_SMALL 30000
|
||||
#define SEN5X_WARMUP_MS 30000
|
||||
#endif
|
||||
|
||||
class SEN5XSensor : public TelemetrySensor
|
||||
{
|
||||
private:
|
||||
SensirionI2CSen5x sen5x;
|
||||
// PM25_AQI_Data pmsa003iData = {0};
|
||||
TwoWire * bus;
|
||||
uint8_t address;
|
||||
|
||||
bool getVersion();
|
||||
float firmwareVer = -1;
|
||||
float hardwareVer = -1;
|
||||
float protocolVer = -1;
|
||||
bool findModel();
|
||||
|
||||
// Commands
|
||||
#define SEN5X_RESET 0xD304
|
||||
#define SEN5X_GET_PRODUCT_NAME 0xD014
|
||||
#define SEN5X_GET_FIRMWARE_VERSION 0xD100
|
||||
#define SEN5X_START_MEASUREMENT 0x0021
|
||||
#define SEN5X_START_MEASUREMENT_RHT_GAS 0x0037
|
||||
#define SEN5X_STOP_MEASUREMENT 0x0104
|
||||
#define SEN5X_READ_DATA_READY 0x0202
|
||||
#define SEN5X_START_FAN_CLEANING 0x5607
|
||||
#define SEN5X_RW_VOCS_STATE 0x6181
|
||||
|
||||
#define SEN5X_READ_VALUES 0x03C4
|
||||
#define SEN5X_READ_RAW_VALUES 0x03D2
|
||||
#define SEN5X_READ_PM_VALUES 0x0413
|
||||
|
||||
enum SEN5Xmodel { SEN5X_UNKNOWN = 0, SEN50 = 0b001, SEN54 = 0b010, SEN55 = 0b100 };
|
||||
SEN5Xmodel model = SEN5X_UNKNOWN;
|
||||
|
||||
enum SEN5XState { SEN5X_OFF, SEN5X_IDLE, SEN5X_MEASUREMENT, SEN5X_MEASUREMENT_2, SEN5X_CLEANING, SEN5X_NOT_DETECTED };
|
||||
SEN5XState state = SEN5X_OFF;
|
||||
|
||||
bool sendCommand(uint16_t wichCommand);
|
||||
bool sendCommand(uint16_t wichCommand, uint8_t* buffer, uint8_t byteNumber=0);
|
||||
uint8_t readBuffer(uint8_t* buffer, uint8_t byteNumber); // Return number of bytes received
|
||||
uint8_t CRC(uint8_t* buffer);
|
||||
|
||||
protected:
|
||||
virtual void setup() override;
|
||||
|
||||
public:
|
||||
enum State {
|
||||
IDLE = 0,
|
||||
ACTIVE = 1,
|
||||
};
|
||||
|
||||
#ifdef SEN5X_ENABLE_PIN
|
||||
void sleep();
|
||||
uint32_t wakeUp();
|
||||
State state = State::IDLE;
|
||||
#else
|
||||
State state = State::ACTIVE;
|
||||
#endif
|
||||
// #ifdef SEN5X_ENABLE_PIN
|
||||
// void sleep();
|
||||
// uint32_t wakeUp();
|
||||
// #endif
|
||||
|
||||
SEN5XSensor();
|
||||
bool isActive();
|
||||
|
||||
Loading…
Reference in New Issue
Block a user