meshtastic-firmware/src/modules/Telemetry/Sensor/RCWL9620Sensor.cpp

65 wiersze
1.7 KiB
C++

#include "configuration.h"
#if !MESHTASTIC_EXCLUDE_ENVIRONMENTAL_SENSOR
#include "../mesh/generated/meshtastic/telemetry.pb.h"
#include "RCWL9620Sensor.h"
#include "TelemetrySensor.h"
RCWL9620Sensor::RCWL9620Sensor() : TelemetrySensor(meshtastic_TelemetrySensorType_RCWL9620, "RCWL9620") {}
int32_t RCWL9620Sensor::runOnce()
{
LOG_INFO("Init sensor: %s\n", sensorName);
if (!hasSensor()) {
return DEFAULT_SENSOR_MINIMUM_WAIT_TIME_BETWEEN_READS;
}
status = 1;
begin(nodeTelemetrySensorsMap[sensorType].second, nodeTelemetrySensorsMap[sensorType].first);
return initI2CSensor();
}
void RCWL9620Sensor::setup() {}
bool RCWL9620Sensor::getMetrics(meshtastic_Telemetry *measurement)
{
LOG_DEBUG("RCWL9620Sensor::getMetrics\n");
measurement->variant.environment_metrics.distance = getDistance();
return true;
}
void RCWL9620Sensor::begin(TwoWire *wire, uint8_t addr, uint8_t sda, uint8_t scl, uint32_t speed)
{
_wire = wire;
_addr = addr;
_sda = sda;
_scl = scl;
_speed = speed;
_wire->begin();
}
float RCWL9620Sensor::getDistance()
{
uint32_t data;
_wire->beginTransmission(_addr); // Transfer data to addr.
_wire->write(0x01);
_wire->endTransmission(); // Stop data transmission with the Ultrasonic
// Unit.
_wire->requestFrom(_addr,
(uint8_t)3); // Request 3 bytes from Ultrasonic Unit.
data = _wire->read();
data <<= 8;
data |= _wire->read();
data <<= 8;
data |= _wire->read();
float Distance = float(data) / 1000;
if (Distance > 4500.00) {
return 4500.00;
} else {
return Distance;
}
}
#endif