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have a question about pins : r/esp8266
ESP8266 – Knowing the NodeMCU GPIOs or Pinout - The Engineering Projects
ESP8266 Relay (active low): how to prevent triggering on boot or reset (SOLVED) - ESPHome - Home Assistant Community
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ESP8266 Pinout Reference - Last Minute Engineers
ESP8266 Using GPIO0/GPIO2/GPIO15 Pins : 4 Steps - Instructables
