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ESP8266 RFID (RC522, PN532, Wiegand, RDM6300) Access Control system featuring WebSocket, JSON, NTP Client, Javascript, SPIFFS

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Relay board by @teriall - Great alternative.

ATTiny85 wakes up from deep sleep on key press and resets a ESP8266, latching the triggering key

MQTT controlled Motor Bulb Valve ESP8266 Arduino

MQTT controlled Motor Bulb Valve ESP8266 Arduino

ESP8266/ESP12 breakout board which handles 12V input and accept all wires from popular wiegand readers.

Alternative ESP-RFID firmware.

ESP8266 RFID (RC522, PN532, Wiegand, RDM6300) Access Control system featuring WebSocket, JSON, NTP Client, Javascript, SPIFFS

An open source, embedded, high performance g-code-parser and CNC milling controller written in optimized C that will run on a straight Arduino