This project demonstrates how to build a simple Voltage Regulator using the 7805 integrated circuit (IC). The 7805 provides a stable 5V outp
Single cell 1A battery charger, works with LIFEPO4, in the same form factor of the legend TP4056. CC and CV modes with protection features.
When working for the Repair Café and on electronics projects, the question always arises: How fit is this battery?
Have you ever wondered what to do with that old laptop charger gathering dust in your drawer? Follow this tutorial to give it a new life!
In this tutorial we will learn how simple it is to use Arduino 4 channel Relay Shield to control a 12V light bulb.
A simple PSU made with breakout boards and having a cool graphical display
There are many charge controllers available, but ordinary cheap ones are not efficient enough to use with maximum power from solar panels.
Track the 230 VAC power line with your favorite HW using a small, efficient, and inexpensive circuit.
Things you should know using ESP8266 WiFi module for its safety and easiness as it's very delicate module to use.
Have someone pulling the plug on your project, or perhaps an unstable or unreliable power supply? Here is the fix!
This is a model circuit that can control the speed and the direction of a dc motor without the h-bridge ( it's an alternative to h-bridge ).
This very simple and inexpensive circuit will reset the fuses on a bricked ATtiny chip. Once programmed, no Arduino is required!
CAN bus hack for reading the battery diagnostics form an electric car.
Get your essential appliances off the grid with just one solar panel
Embellish, protect and reduce the sheet metal look of your modified HP server power supply with this 3D-printed enclosure.
A mini UPS for your WiFi router made from old laptop batteries
DC-DC Buck Converter to step down voltages from 55V max to 1.2V-55V
This hack is a proof of concept that shuts off power only to the level of the house that has been flooded, allowing for normal use elsewhere
Bridging the gap between professional and DIY/hobbyist bench power supply.
This solar powering unit is a time-switching, battery-powered, solar-charged circuit for Arduino.
A simple and inexpensive solution is to use a 'mobile power bank'
After you read this post, your projects will never run out of power after a power outage.
A 3V to 20V portable rechargeable power supply from off-the-shelf components. Powered by a single 18650 battery.
DC to DC converters are quite popular among electronic enthusiasts and are widely used within the industry
