Content for LM7805

Raspberry Pi Controlled DC Load

“A DC Load is useful for testing lots of different things. If you have a power supply and want to make sure it’s able to deliver its fully designed potential, then you can use a DC Load to test …

RFID Smart Door Lock With ESP8266

“In this video I am going to show you how to build your own access control system with RFID and Arduino + Cloud logging of attendance. It is a very good project for IoT beginners and enthusiasts, hope you like it …

Skeet Shooting Game

“An electronic skeet shooting game with 9 levels of play. It includes features such as score and shot count. This electronic skeet shoot game was inspired by a similar version by masonhorder. LED bar graph displays are used instead of …

Access Control System - Everything Can Be Configured Via Web

“In this project, make ESP RFID accsess control board with ESP8266 and RC522. Everything Can Be Configured Via Web UI (IoT) Hi everyone in this project we gonna make ESP RFID accsess control board with ESP8266 and RC522. Access control …

Arduino Learner Kit (Open Source)

“If you are a beginner in Arduino World and going to learn Arduino having some hands-on experience this Instructables and this Kit is for you. This Kit is also a good choice for the teachers who like to teach Arduino …

Laserbeam-Figures

“This instruction will show you a simple construction to use a controlled laser beam for projecting nice figures on a wall. What does the system do ? On the shaft of each motor a small mirror is installed. I did it …

Simple DIY Logic Converter for 3.3V Devices

“In this Post, I will show you how you can make your own 5V to 3.3V logic converter for connecting 5V sensors to new Arduino Boards and Raspberry Pi. Why do we need a Logic Level Converter IC? Most …

Do It Yourself Siren Alarm Based on ESP32 Wemos D1 R1

“My home automation system needed a loud alarm signal when either “panic” or “fire” was declared by my family. A 12 volt siren was perfect. Story I’ve been building a home automation system for several years. Today, Internet of …

Room Control With ESP8266 | Temperature, Motion, Curtains and Lighting

“This project consist on a system based on the NodeMCU ESP8266 module that let you control the brightness of a LED Strip and the curtain of your room, also it’s able to send data about the motion events of …

Stopwatch with ATtiny13 and TM1637 LED Module

“A simple stopwatch. If you have 5v power source you do not need to build the LM7805 Voltage regulator circuit as in the drawing.”