Using external power supply on the NodeMCU V2 : r/esp8266
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Power Supply for NodeMCU with Battery Charger & Booster
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Can i power this 'nodemcu esp8266 v3' using 7.4v or 8v power source in its microusb. actually i have two li-ion battery(3.7v) so , i am going to connect this battery in
Power Supply for NodeMCU with Battery Charger & Booster
