A simple Arduino project that uses a temperature sensor to control two fans to help cool down a laptop on a laptop stand.

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

Clock for HIIT Training

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

ESP32 S3 dev board with RGB led using deep sleep between cycling through rainbow colors

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

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

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

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!

Make a manual switch to control the Sonoff Basic R2!

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

blynk iot+wemos d1 mini+deepsleep

Distributed MQTT multi-slot parking system with ESP8266 and ESP32

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

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

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

An example demonstrating the usage of the LowPower library on BastWAN

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

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

🔌 reconnects to wifi every 20 seconds