Shows the counted heart rate with Arduino and sent with ESP8266.

Temperature and Humidity

Published from my coconut LoRa node: an RN2483 module controlled by an ATtiny85V, a TMP36 temperature sensor, a homemade 868 MHz helical antenna and two AAA batteries.

ESP8266 running NodeMCU with a DHT11 to report humidity and a BMP180 to report pressure and temperature. The Sensor also reports battery voltage which is 2xAA batteries. Photo: http://imgur.com/hDpeNxj

cerman_balkon