K-Type thermocouple running through a MAX6675 interface to an Arduino UNO. Wifi connected via a Sparkfun ESP8266 Thing board.

Particle Photon DHT22 DataStream

Arduino + 4 DS18B20 + LCD

Arduino Temp sensor

Sensores Quarto

PulseSensor connected to Arduino Nano along with algorithm code to read pulses from sensor then formulate BPM and send BPM values to NodeMCU ever Minute. and the nodeMCU with Lua firmware waits for BMP data, once received it updates BPM values to ThingSp

Using a NanoESP (Arduino compatible Nano and a esp8266) to send Brightness. More Info see http://iot.fkainka.de/day-19

Channel for temp and humidity in gym in garage in Kent, UK.

Ligar arduino à internet