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334a4f04cd
* better logic to check if the RAK12035 soil sensor is calibrated, better log messaging if either of the default values were used. * . * changes to how default calibration is done and a message it the default calibration is used pointing to the actual calibration sketch so the user can find it and use it to improve accuracy. --------- Co-authored-by: Ben Meadors <benmmeadors@gmail.com>
121 lines
3.9 KiB
C++
121 lines
3.9 KiB
C++
#include "configuration.h"
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#if !MESHTASTIC_EXCLUDE_ENVIRONMENTAL_SENSOR && __has_include("RAK12035_SoilMoisture.h") && defined(RAK_4631) && RAK_4631 == 1
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#include "../mesh/generated/meshtastic/telemetry.pb.h"
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#include "RAK12035Sensor.h"
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// The RAK12035 library's sensor_sleep() sets WB_IO2 (GPIO 34) LOW, which controls
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// the 3.3V switched power rail (PIN_3V3_EN). This turns off power to ALL peripherals
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// including GPS. We need to restore power after the library turns it off.
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#ifdef PIN_3V3_EN
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#define RESTORE_3V3_POWER() digitalWrite(PIN_3V3_EN, HIGH)
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#else
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#define RESTORE_3V3_POWER()
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#endif
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RAK12035Sensor::RAK12035Sensor() : TelemetrySensor(meshtastic_TelemetrySensorType_RAK12035, "RAK12035") {}
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bool RAK12035Sensor::initDevice(TwoWire *bus, ScanI2C::FoundDevice *dev)
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{
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// TODO:: check for up to 2 additional sensors and start them if present.
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sensor.set_sensor_addr(RAK120351_ADDR);
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delay(100);
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sensor.begin(dev->address.address);
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uint8_t data = 0;
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sensor.get_sensor_version(&data);
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if (data != 0) {
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LOG_INFO("Init sensor: %s", sensorName);
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LOG_INFO("RAK12035Sensor Init Succeed \nSensor Firmware version: %i, Sensor Name: %s", data, sensorName);
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status = true;
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sensor.sensor_sleep();
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RESTORE_3V3_POWER();
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} else {
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LOG_INFO("Init sensor: %s", sensorName);
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LOG_ERROR("RAK12035Sensor Init Failed");
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status = false;
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}
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if (!status) {
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return status;
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}
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setup();
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initI2CSensor();
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return status;
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}
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void RAK12035Sensor::setup()
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{
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// TODO:: Check for and run calibration check for up to 2 additional sensors if present.
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uint16_t zero_val = 0;
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uint16_t hundred_val = 0;
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const uint16_t default_zero_val = 510;
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const uint16_t default_hundred_val = 390;
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sensor.sensor_on();
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sensor.begin();
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delay(200);
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sensor.get_dry_cal(&zero_val);
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delay(200);
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sensor.get_wet_cal(&hundred_val);
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delay(200);
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bool calibrationReset = false;
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if (zero_val == 0) {
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LOG_INFO("Dry calibration not set, using default: %d", default_zero_val);
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sensor.set_dry_cal(default_zero_val);
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delay(200);
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zero_val = default_zero_val;
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calibrationReset = true;
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}
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if (hundred_val == 0 || hundred_val >= zero_val) {
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LOG_INFO("Wet calibration not set, using default: %d", default_hundred_val);
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sensor.set_wet_cal(default_hundred_val);
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delay(200);
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hundred_val = default_hundred_val;
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calibrationReset = true;
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}
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if (calibrationReset) {
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LOG_INFO("Default calibration values applied. Consider running the calibration sketch for better accuracy: "
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"https://github.com/RAKWireless/RAK12035_SoilMoisture");
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}
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LOG_INFO("Dry calibration value: %d, Wet calibration value: %d", zero_val, hundred_val);
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sensor.sensor_sleep();
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RESTORE_3V3_POWER();
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delay(200);
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LOG_INFO("Dry calibration value is %d", zero_val);
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LOG_INFO("Wet calibration value is %d", hundred_val);
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}
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bool RAK12035Sensor::getMetrics(meshtastic_Telemetry *measurement)
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{
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// TODO:: read and send metrics for up to 2 additional soil monitors if present.
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measurement->variant.environment_metrics.has_soil_temperature = true;
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measurement->variant.environment_metrics.has_soil_moisture = true;
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uint8_t moisture = 0;
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uint16_t temp = 0;
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bool success = false;
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sensor.sensor_on();
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delay(200);
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success = sensor.get_sensor_moisture(&moisture);
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delay(200);
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success &= sensor.get_sensor_temperature(&temp);
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delay(200);
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sensor.sensor_sleep();
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RESTORE_3V3_POWER();
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if (success == false) {
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LOG_ERROR("Failed to read sensor data");
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return false;
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}
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measurement->variant.environment_metrics.soil_temperature = ((float)temp / 10.0f);
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measurement->variant.environment_metrics.soil_moisture = moisture;
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return true;
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}
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#endif
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