A simple temperature sensing device that transmits values over MQTT.
make menuconfig
- Set serialport under
Serial flasher config - Set wifi SSID, password, MQTT Broker URL & Device name under
Custom Network etc. Configuration
Build the project and flash it to the board, then run monitor tool to view serial output:
make -j4 flash monitor
(To exit the serial monitor, type Ctrl-].)
- Breadboard
- ESP32 DEVKIT board
- TMP36 temperature sensor
- Ceramic capacitor [0.1µF]
- 2x LEDs
- Pushbutton
- Resistors [100Ω, 2 x 220Ω]
