GitHub - 8n1/ESP8266-Tiny-Door-and-Window-Sensor: Battery powered door and window sensor with ultra low standby power. Arduino, ESP-12, Reed switch, ATtiny, LDO
![arduino - Latching circuit for ESP8266 with coin cell and Reed Switch - Electrical Engineering Stack Exchange arduino - Latching circuit for ESP8266 with coin cell and Reed Switch - Electrical Engineering Stack Exchange](https://i.stack.imgur.com/CpuKw.jpg)
arduino - Latching circuit for ESP8266 with coin cell and Reed Switch - Electrical Engineering Stack Exchange
![arduino - Latching circuit for ESP8266 with coin cell and Reed Switch - Electrical Engineering Stack Exchange arduino - Latching circuit for ESP8266 with coin cell and Reed Switch - Electrical Engineering Stack Exchange](https://i.stack.imgur.com/x0gFL.png)
arduino - Latching circuit for ESP8266 with coin cell and Reed Switch - Electrical Engineering Stack Exchange
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Amazon.com: HiLetgo 3pcs ESP8266 ESP-01 Serial WiFi Wireless Transceiver Wireless Module Development Board LWIP AP+STA Compatible with Arduino
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