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Doh! You can power the WeMos D1 Mini ESP8266 from the 5 Volt pin

A project log for Beehive Monitoring, Now With WiFi

Using a WeMos ESP8266 D1 Mini and DHT22 Shield to monitor beehive temperature and humidity

Don R-CrenshawDon R-Crenshaw 04/22/2016 at 18:181 Comment

Stupid of me not to realize that initially. I slapped a 7805 voltage regulator and a 9 volt battery on it and threw it out in the backyard. It works, nuff said. 7805 is an inefficient power sucker so I need to get serious now about power management.


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Szabó István wrote 09/14/2019 at 11:49 point

I find the simplest way to use a battery shield

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