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One phase pzem004 meter

by AlexRyzh

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case ESP8266 power case ESP8266 power

Case for esp8266 + pzem004 + power supply HLK-PM01 5V
For connections ask google. Only power and rx/tx connections used.
Also make a cover for oled display (I2C 0.96" OLED 128x64) but doesn't test it.
esp board(why? bcs I have one): https://www.aliexpress.com/item/1000001129692.html
Software: ESPHome (https://github.com/esphome/feature-requests/issues/49)

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