Collection of DC/DC Converters, Battery Chargers, and Power Supplies

Single-Cell Li-Ion Battery Charger with Monitoring

TP4056 Power Sharing PCB. Charge battery despite connected load.

Reverse Protected 18650 Lithium-Ion Charging Unit

Raspberry Pi Pico Battery Operation

Solar powered anemometer

This repository contains several Libraries for a couple of different chips and components. Five in total. They all combine in a very nice way and are perfect to make a Portable Radio with.

ESP8266 NodeMCU Based Solar Powered WiFi Weather Station - Record Temperature (x2), Humidity, Pressure, Rain, and Voltage

A simple weather station that periodically wakes and sends data to a Thingsboard server

3D printed case for ESP32 Pokemon Go Autocatcher

Beehive online monitoring based on the ESP32, SIM800L and others sensors.

Dálková spoušť fotoaparátu "QAPPKA"

Windvane

ESP32-C3-mini based posture corrector

Low power DS18B20 sensor module

An FM radio receiver built using an ESP12E, interfaced with the RDA5807M module. Powered by a Li-Ion battery with a TP4056 charging module, amplified by a PAM8403, and output through a 10-watt speaker. Features station switching via a button.