to receive data from sensor and arduino by and update by GPRS.
This is an automatic seedling starter. I'm tracking the temperature, humidity, water level, and pump status of my system.
This channel tracks snow depth. The device uses a Maxbotix ultrasonic distance sensor interfaced to a ESP8266 Wifi module. The code is written on the Arduino platform to support over-the-air program updates and uplinking to Thingspeak. Designed by Jeff E.
Tracking drift in time with an ATMega328 acting as the RTC (using 32.768 kHz crystal)