This is a remote feed from my vegetable garden. The hardware is run intermittently using an energyShield 2 with solar charging and sleep functionality.

Batt log and auto disconnect charger for esp8266

Solar Array for charging vehicle batteries. Status of solar array and batteries.

Power Node sensor with bme280, measures temperature, humidity, pressure and battery voltage. Sends measurements to gsm master node every 10 min. Current consumption ~ 10uA at 2.6V.

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

Channel 1