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MCP9808 sensor implementation (#1188)

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* MCP9808 Sensor Implementation Initial Test
This commit is contained in:
Ric Letson 2022-02-08 10:03:34 -07:00 committed by GitHub
parent e649bc84e1
commit 856f2f9589
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4 changed files with 53 additions and 0 deletions
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1
platformio.ini
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@ -116,6 +116,7 @@ lib_deps =
robtillaart/DS18B20@^0.1.11
adafruit/Adafruit BME280 Library@^2.2.2
adafruit/Adafruit BME680 Library@^2.0.1
adafruit/Adafruit MCP9808 Library@^2.0.0
; Common settings for ESP targes, mixin with extends = esp32_base
[esp32_base]

9
src/plugins/EnvironmentalMeasurement/EnvironmentalMeasurementPlugin.cpp
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@ -14,11 +14,13 @@
#include "Sensor/BME680Sensor.h"
#include "Sensor/DHTSensor.h"
#include "Sensor/DallasSensor.h"
#include "Sensor/MCP9808Sensor.h"
BME280Sensor bme280Sensor;
BME680Sensor bme680Sensor;
DHTSensor dhtSensor;
DallasSensor dallasSensor;
MCP9808Sensor mcp9808Sensor;
#define FAILED_STATE_SENSOR_READ_MULTIPLIER 10
#define DISPLAY_RECEIVEID_MEASUREMENTS_ON_SCREEN true
@ -88,6 +90,8 @@ int32_t EnvironmentalMeasurementPlugin::runOnce()
return bme280Sensor.runOnce();
case RadioConfig_UserPreferences_EnvironmentalMeasurementSensorType_BME680:
return bme680Sensor.runOnce();
case RadioConfig_UserPreferences_EnvironmentalMeasurementSensorType_MCP9808:
return mcp9808Sensor.runOnce();
default:
DEBUG_MSG("EnvironmentalMeasurement: Invalid sensor type selected; Disabling plugin");
return (INT32_MAX);
@ -137,6 +141,8 @@ int32_t EnvironmentalMeasurementPlugin::runOnce()
case RadioConfig_UserPreferences_EnvironmentalMeasurementSensorType_BME280:
case RadioConfig_UserPreferences_EnvironmentalMeasurementSensorType_BME680:
return (BME_SENSOR_MINIMUM_WAIT_TIME_BETWEEN_READS);
case RadioConfig_UserPreferences_EnvironmentalMeasurementSensorType_MCP9808:
return (MCP_SENSOR_MINIMUM_WAIT_TIME_BETWEEN_READS);
default:
return (DEFAULT_SENSOR_MINIMUM_WAIT_TIME_BETWEEN_READS);
}
@ -267,6 +273,9 @@ bool EnvironmentalMeasurementPlugin::sendOurEnvironmentalMeasurement(NodeNum des
case RadioConfig_UserPreferences_EnvironmentalMeasurementSensorType_BME680:
bme680Sensor.getMeasurement(&m);
break;
case RadioConfig_UserPreferences_EnvironmentalMeasurementSensorType_MCP9808:
mcp9808Sensor.getMeasurement(&m);
break;
default:
DEBUG_MSG("EnvironmentalMeasurement: Invalid sensor type selected; Disabling plugin");
return false;

28
src/plugins/EnvironmentalMeasurement/Sensor/MCP9808Sensor.cpp Normal file
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@ -0,0 +1,28 @@
#include "../mesh/generated/environmental_measurement.pb.h"
#include "configuration.h"
#include "EnvironmentalMeasurementSensor.h"
#include "MCP9808Sensor.h"
#include <Adafruit_MCP9808.h>
MCP9808Sensor::MCP9808Sensor() : EnvironmentalMeasurementSensor {} {
}
int32_t MCP9808Sensor::runOnce() {
unsigned mcp9808Status;
// Default i2c address for MCP9808
mcp9808Status = mcp9808.begin(0x18);
if (!mcp9808Status) {
DEBUG_MSG("Could not find a valid MCP9808 sensor, check wiring, address, sensor ID!");
} else {
DEBUG_MSG("EnvironmentalMeasurement: Opened MCP9808 on default i2c bus");
// Reduce resolution from 0.0625 degrees (precision) to 0.125 degrees (high).
mcp9808.setResolution(2);
}
return (MCP_SENSOR_MINIMUM_WAIT_TIME_BETWEEN_READS);
}
bool MCP9808Sensor::getMeasurement(EnvironmentalMeasurement *measurement) {
measurement->temperature = mcp9808.readTempC();
return true;
}

15
src/plugins/EnvironmentalMeasurement/Sensor/MCP9808Sensor.h Normal file
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@ -0,0 +1,15 @@
#include "../mesh/generated/environmental_measurement.pb.h"
#include "EnvironmentalMeasurementSensor.h"
#include <Adafruit_MCP9808.h>
#define MCP_SENSOR_MINIMUM_WAIT_TIME_BETWEEN_READS 1000
class MCP9808Sensor : virtual public EnvironmentalMeasurementSensor {
private:
Adafruit_MCP9808 mcp9808;
public:
MCP9808Sensor();
virtual int32_t runOnce() override;
virtual bool getMeasurement(EnvironmentalMeasurement *measurement) override;
};