Pierre Muth has created a battery powered remote display for logging station:
Wireless remote LCD
This tests using the famous ESP8266 and low consumption Sharp Memory LCD. Is it possible to have a compact remote display battery powered?
Muth has shared the board on OSH Park:
ESP8266 and Sharp memory LCD
OSH Park 
Tiny typo in the second para
This tests using the famous ESP8622<—- and low consumption Sharp Memory LCD.
LikeLike
thanks!
LikeLike