The Sim800 and the Arduino Mini Pro 3.3

A project log for Water Temperature Arduino GPRS

Messuring water temperature with ds18b20. Sending it all to thingspeak.

Marin B.Marin B. 08/24/2016 at 09:560 Comments

They use a lot less power then the Elecrow A6 module board with the 32u4 Arduino.

Want to see how much. Battery charged from 87% to 97% in sensor reading cycles that are 15min each.

Its a cloudy day today and i did not use that 2.5W solar panel. I used a tiny tiny 0.6W panel that runs at 6V. The 2.5W panel runs at 5V.