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Alexander 2024-07-07 09:38:42 -04:00
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@ -52,14 +52,14 @@ Eco-system of ESP32s Nodes and ATtiny85 peripherals with different functionaliti
The **Temperature Node** broadcasts the air temperature, atmospheric pressure and air humidity over secured MQTT.
### BME280
### I2C Air Temperature, Pressure and Humidity Sensor Board (BME280)
BME280 is I2C Temperature, Pressure and Humidity Sensor 13mmx10.5mm in size.
The sensor board is 13mm by 10.5mm in size that provides the air temperature, pressure and humidity values over I2C protocol. Sensor board uses BME280 IC.
<img alt="ESP32-Node Pinout" src="https://github.com/alexandrebobkov/ESP-Nodes/blob/main/assets/BME280.jpg" width="200px"/>
> [!IMPORTANT]
> BM**E**280 and BM**P**280 look very similar. However, BME280 sensor has square form, while BMP280 has rectangular form.
> BM**E**280 and BM**P**280 look very similar. However, BME280 sensor has square form, while BMP280 has rectangular form. In addition, the two sensor boards have different I2C addresses.
>
> <img alt="ESP32-Node Pinout" src="https://github.com/alexandrebobkov/ESP-Nodes/blob/main/assets/BME280-BMP280.jpg" width="100px"/>