ESP8266 Deep Sleep with Arduino IDE (NodeMCU) | Random Nerd Tutorials
Building the Hardware | DIY ESP8266 Home Security with Lua and MQTT | Adafruit Learning System
Making a simple door sensor from ESP8266 - John's Tech Blog
ESP8266 WIFI Relay Module 4 Channel Wireless Development Board AC-DC Switching Power Supply Board 5V ESP-12F for Arduino - AliExpress
Amazon.com: HiLetgo 1PC ESP8266 NodeMCU CP2102 ESP-12E Development Board Open Source Serial Module Works Great for Arduino IDE/Micropython (Small) : Electronics
arduino - Latching circuit for ESP8266 with coin cell and Reed Switch - Electrical Engineering Stack Exchange
One ESP8266, One Battery, One Year… And Counting. | Hackaday
low power - How to turn on module like ESP8266 only when switch is activated? - Electrical Engineering Stack Exchange
Low-energy ESP8266-based Board Sleeps Like A Log Until Triggered | Hackaday
IoT Door Sensor Reed Switch based Security System using Nodemcu
Esp01 Battery drain deepsleep - Everything ESP8266
Window/Door Sensor - battery powered with relay or FET for backup - Project Guidance - Arduino Forum
Reed Door Sensor (battery powered ESP32 with esphome(yaml)) - ESPHome - Home Assistant Community
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
Easy battery powered Mailbox Door IoT sensor using ESP32 ← ABrandão.com
ESP32 Low Power Device Design - Part 1 - Squix - TechBlog
ESP8266 (esp-07) powered by battary(s) for at least 1 year | Electronics Forums
ESP8266 Window Sensor with OTA and Deep Sleep | PlastiBots
Battery Powered Shed Door & Lock Sensor, Solar, ESP8266, ESP-Now, MQTT : 4 Steps (with Pictures) - Instructables
ESP8266 Window Sensor with OTA and Deep Sleep | PlastiBots
My Door Sensor (Revised Design) Breakdown and Upgrades - YouTube
ESP8266 NodeMCU Door Status Monitor with Email Notifications (IFTTT) | Random Nerd Tutorials
ESP8266 Voltage Regulator For LiPo and Li-ion Batteries | Random Nerd Tutorials
Reed Switch Tutorial for Arduino, ESP8266 and ESP32
Nodemcu external power - won't start? - Everything ESP8266
Reed Switch Tutorial for Arduino, ESP8266 and ESP32
