Bosch BME280 sensor

Temperature, humidity and pressure measurement using Python on a Raspberry Pi Pico W with I2C on the Bosch BME280 and sending its data to an MQTT server.

Cabling

• I2C0 SDA (pin 1) on SDA
• I2C0 SCL (pin 2) on SCL
• 3V3(OUT) (pin 36) on VIN
• GND (pin 38) on GND

Config

WiFi

• SSID - your WiFi network name
• PASSWD - your WiFi network password

MQTT

• MQTT_BROKER - MQTT broker ip-address
• MQTT_USERNAME - MQTT username
• MQTT_PASSWORD - MQTT password
• MQTT_CLIENT_ID - MQTT client ID
• TOPIC_DIRECTORY - topic directory to publish to

update interval

• time - time in seconds between updates

Flashing

• copy both python files to the root folder of the Raspberry Pi Pico W
  • main.py
  • bme280.py
• copy config.json after filling in required information