Using the Firebeetle ESP32-E as battery powered sensor (SKU:DFR0654-F)

All about the MicroWakeupper Library (and BatteryShield for the Wemos D1 Mini)

Small portable ESP32-based motion detector - Informs you if your pet or a burglar is at the back door and wants in.

Make a manual switch to control the Sonoff Basic R2!

ISR-based projects demonstrate how to use ESP8266TimerInterrupt, ESP32TimerInterrupt and TimerInterrupt Library

Wemos D1 mini based temperatures\humidity battery powered sensor

This is a project to transmit data by MQTT with low power by connecting the fine dust sensor and 18650 battery to the wemos d1 mini board!

ESP32/8266 Arduino/PlatformIO library that painlessly enables incredibly fast re-connect to the previous wireless network after deep sleep.

Distributed MQTT multi-slot parking system with ESP8266 and ESP32

blynk iot+wemos d1 mini+deepsleep

Demonstration of the fastest wireless re-connection possible after ESP.deepSleep

Check the temperature and humidity on your smartphone using Arduino and dht11 sensor!

IoT low power project with wemos D1 mini (ESP8266), to control/monitor a pump and water some plants.

An example demonstrating the usage of the LowPower library on BastWAN

measurement of water volume in a cistern with ultrasonic sensor and wemos d1 mini every 12h - deep-sleep in between - off-grid with 2 LiFePO4 cells - display of results on website with chartjs

basic of getting data from https://aqicn.org/api/ send via line, the make a long sleep

Multi Analog Sensors using the Multiplexation on Analog Input on the ESP8266.

🔌 reconnects to wifi every 20 seconds