diff --git a/src/modules/Telemetry/EnvironmentTelemetry.cpp b/src/modules/Telemetry/EnvironmentTelemetry.cpp index 2337af808..a923ab457 100644 --- a/src/modules/Telemetry/EnvironmentTelemetry.cpp +++ b/src/modules/Telemetry/EnvironmentTelemetry.cpp @@ -134,6 +134,10 @@ extern void drawCommonHeader(OLEDDisplay *display, int16_t x, int16_t y, const c #include "Sensor/TSL2561Sensor.h" #endif +#if __has_include() +#include "Sensor/BH1750Sensor.h" +#endif + #define FAILED_STATE_SENSOR_READ_MULTIPLIER 10 #define DISPLAY_RECEIVEID_MEASUREMENTS_ON_SCREEN true @@ -262,6 +266,9 @@ void EnvironmentTelemetryModule::i2cScanFinished(ScanI2C *i2cScanner) #if __has_include() addSensor(i2cScanner, ScanI2C::DeviceType::NAU7802); #endif +#if __has_include() + addSensor(i2cScanner, ScanI2C::DeviceType::BH1750); +#endif #endif } diff --git a/src/modules/Telemetry/Sensor/BH1750Sensor.cpp b/src/modules/Telemetry/Sensor/BH1750Sensor.cpp new file mode 100644 index 000000000..b8790dcd5 --- /dev/null +++ b/src/modules/Telemetry/Sensor/BH1750Sensor.cpp @@ -0,0 +1,54 @@ +#include "configuration.h" + +#if !MESHTASTIC_EXCLUDE_ENVIRONMENTAL_SENSOR && __has_include() + +#include "../mesh/generated/meshtastic/telemetry.pb.h" +#include "BH1750Sensor.h" +#include "TelemetrySensor.h" +#include + +#ifndef BH1750_SENSOR_MODE +#define BH1750_SENSOR_MODE BH1750Mode::CHM +#endif + +BH1750Sensor::BH1750Sensor() : TelemetrySensor(meshtastic_TelemetrySensorType_BH1750, "BH1750") {} + +bool BH1750Sensor::initDevice(TwoWire *bus, ScanI2C::FoundDevice *dev) +{ + LOG_INFO("Init sensor: %s with mode %d", sensorName, BH1750_SENSOR_MODE); + + bh1750 = BH1750_WE(bus, dev->address.address); + status = bh1750.init(); + if (!status) { + return status; + } + + bh1750.setMode(BH1750_SENSOR_MODE); + + initI2CSensor(); + return status; +} + +bool BH1750Sensor::getMetrics(meshtastic_Telemetry *measurement) +{ + + /* An OTH and OTH_2 measurement takes ~120 ms. I suggest to wait + 140 ms to be on the safe side. + An OTL measurement takes about 16 ms. I suggest to wait 20 ms + to be on the safe side. */ + if (BH1750_SENSOR_MODE == BH1750Mode::OTH || BH1750_SENSOR_MODE == BH1750Mode::OTH_2) { + bh1750.setMode(BH1750_SENSOR_MODE); + delay(140); // wait for measurement to be completed + } else if (BH1750_SENSOR_MODE == BH1750Mode::OTL) { + bh1750.setMode(BH1750_SENSOR_MODE); + delay(20); + } + + measurement->variant.environment_metrics.has_lux = true; + float lightIntensity = bh1750.getLux(); + + measurement->variant.environment_metrics.lux = lightIntensity; + return true; +} + +#endif diff --git a/src/modules/Telemetry/Sensor/BH1750Sensor.h b/src/modules/Telemetry/Sensor/BH1750Sensor.h new file mode 100644 index 000000000..d9a4ded95 --- /dev/null +++ b/src/modules/Telemetry/Sensor/BH1750Sensor.h @@ -0,0 +1,21 @@ +#pragma once +#include "configuration.h" + +#if !MESHTASTIC_EXCLUDE_ENVIRONMENTAL_SENSOR && __has_include() + +#include "../mesh/generated/meshtastic/telemetry.pb.h" +#include "TelemetrySensor.h" +#include + +class BH1750Sensor : public TelemetrySensor +{ + private: + BH1750_WE bh1750; + + public: + BH1750Sensor(); + virtual bool getMetrics(meshtastic_Telemetry *measurement) override; + virtual bool initDevice(TwoWire *bus, ScanI2C::FoundDevice *dev) override; +}; + +#endif