Arduino (NodeMCU ESP-12E module) code for the sensors API

• BME280 (temperature, pressure, humidity)
• HTU21DF (temperature & humidity; but more accurate than the BME280)
• TSL2561 (illuminance; full spectrum, ir spectrum & visible spectrum)

When browsing to the IP of the module you will see a similar output as below.

{ "illuminance": { "visible": 905, "full": 1255, "ir": 347 }, "temperature": 24.51, "humidity": 37.49, "pressure": 1027.82 }

But there's also other routes to fetch raw values separately & disable / enable the LED.

• GET /
• GET /illuminance/full
• GET /illuminance/visible
• GET /illuminance/ir
• GET /temperature
• GET /humidity
• GET /pressure
• POST /led // body payload: enabled: 0 | 1