lolin32_mqtt_bme280

WEMOS Lolin32 (Lite) serving BME280 temperature and humidity data via MQTT

Layout

In order to use the code, rename the WLAN and MQTT header files and fill in your configuration.

$ mv wlan.h.example wlan.h
$ mv mqtt.h.example mqtt.h

The Lolin32 Lite needs two additional lines of code in order to find the BME280 sensor:

/* THIS IS NEEDED FOR Lolin32 Lite ONLY */
/* for normal ESP32 boards, use pins 21 + 22 */
#define I2C_SDA_PIN 23
#define I2C_SCL_PIN 22

For conventional Lolin32 or generic ESP32 boards, remove those two lines and connect to the appropriate I²C pins (e.g. 21 and 22).