Content for LM7805

Mini CNC Laser Wood Engraver and Laser Paper Cutter

“I made an Arduino-based laser CNC wood engraver and thin paper cutter using old DVD drives, 250mW laser. Playing area is 40mm x 40mm max. This is an tutorials on how I made an Arduino-based CNC laser wood engraver and …

Arduino Home Automation

“Home Appliances is now controlled by Arduino and Bluetooth this is totally possible. Now just download Arduino Home Controlling App on Your Smartphone and enjoy. This is very simple and easiest project to make. You need some electronics like Arduino …

Project  Battledip

Battledip

“This project is a good introduction to digital logic circuits as it will utilize basic concepts of Boolean logic and memory in circuits. You will be using chips such as a Dual D-Type Flip Flop, Quad 2-input XNOR gate, and …

Fedora 1.0 , An Intelligent Flower Pot

” FEDORA or Flower Environment Decorating Organic Result Analyzer is an intelligent flower pot for indoor gardening. FEDORA is not just a flower pot, it can act as an alarm clock, wireless music player and a tiny robot friend. The main …

How a Voltage Regulator Works: LM7805

“Voltage regulators are one of the first electronic components you get introduced to as a hobbyist. Really useful when starting out, it simply takes a voltage that is too high, and reduces it down to a set voltage that you …

Remote System Monitor

“Monitor a remote system (battery, power usage and sensors) with this Arduino MKR FOX 1200-based, Sigfox-connected solution. My garage has no mains electricity or WiFi and so I use an old car battery for power and LED lighting, I’d …

5V Battery Powered Pocket Sized Variable Power Supply

“The power supply presented here is Battery Powered, Variable and pocket Sized. It is portable and fully functional. You not have to now carry AA Sized Cells. I get frustrated when I need AA or AAA sized Batteries. At those …

+5V and -5V Dual Regulated Power Supply

“Dual regulated power supply is needed in many digital and analog circuits.Operational Amplifier like UA741 needed dual regulated power supply to operate.In normal regulated power supply,only positive voltage is regulated this leads to ground loop coupling which …

DIY Keypad Entry System with PIC16 Microcontroller and Solenoid

“Nothing is more irritating than someone going through your cupboards or your personal space. If you (like myself) feel that it needs to stop then worry no more! In this project, you will learn how to build a 12-key keypad …

How to Build a Bi-Fuel (LPG & Unleaded) Trip Computer Using Arduino

“The main reason I made this project is the lack of a trip computer that is designed for LPG powered cars. I named it Bi-TripCo as it can measure the fuel consumption for both fuel systems of a Bi-Fuel car …