Si7005 Sensor Driver for Mongoose OS

Overview

Si7005 is a temperature and relative humidity sensor by Silicon Labs.

This library provides a driver for this device.

API documentation

See include/si7005.h.

Example

#include "mgos.h"

#include "si7005.h"

static void temp_timer_cb(void *arg) {
  float temp = si7005_read_temp();
  float rh = si7005_read_rh();
  LOG(LL_INFO, ("T %.2f RH %.2f", temp, rh));
  (void) arg;
}

enum mgos_app_init_result mgos_app_init(void) {
  if (si7005_probe()) {
    LOG(LL_INFO, ("Si7005 sensor found"));
    mgos_set_timer(1000, MGOS_TIMER_REPEAT, temp_timer_cb, NULL);
  } else {
    LOG(LL_WARN, ("Failed to init temp sensor"));
  }
  return MGOS_APP_INIT_SUCCESS;
}

Note: You need to make sure that I2C is enabled. This can be achieved by adding

config_schema:
  - ["i2c.enable", true]

to mos.yml. You may need to adjust SDA and SCL pins as well. See I2C library for details.