Content for Perfboard

Perfboard

Perfboard is a material for prototyping electronic circuits (also called DOT PCB). It is a thin, rigid sheet with holes pre-drilled at standard intervals across a grid, usually a square grid of 0.1 inches (2.54 mm) spacing. These holes are ringed by round or square copper pads, though bare boards are also available. Inexpensive perfboard may have pads on only one side of the board, while better quality perfboard can have pads on both sides (plate-through holes). Since each pad is electrically isolated, the builder makes all connections with either wire wrap or miniature point to point wiring techniques. Discrete components are soldered to the prototype board such as resistors, capacitors, and integrated circuits. The substrate is typically made of paper laminated with phenolic resin (such as FR-2) or a fiberglass-reinforced epoxy laminate (FR-4).

LDR Color Sensor

“With the intention of building a cheap and simple color sensor to do projects with our students, we found an idea that seemed to allow us to do this with a simple LDR photoresistor and an RGB LED. Let’s …

DIY Super Simple Sensitive Metal Detector

“Extremely simple Metal Detector whose making requires only one cheap integrated circuit TL084. It can detect metal coin at 15cm distance, and big plate at more than 50 cm. As I mentioned before, the device is very simple to make …

NodeMCU ESP8266 NeoPixel Control web server

“A simple web server hosted on ESP8266 to control effects of NeoPixel strip, using NodeMCU Lua Firmware. Why ESP8266 + NodeMCU Lua webserver + NeoPixels ? Neopixels are absolutely fun to work with and adding a wifi control to them makes neopixels more …

Samsung TV Remote Service

“If you are a TV technician this project cannot be missing among your repair tools. I made an infrared remote control with arduino nano that allows you to send 3SPEED and Factory codes (and many others to choose from!) To …

Project  Tachometer

Tachometer

“This Tachometer very precise. it measures too fast or slow RPMs and it can be used to measure engine RPM or any thing. I am currently making an electric Bike, but the problem is that I wanted to measure the …

V-I Component Tester Interface v2

“If you have an oscilloscope, you don’t need to buy a V-I Component Tester. Development based on v0. This is a development of it by using transformers and relays. On this project I used 3V telecommunication relays. Particularly I …

Mailbox Bot 1 .0 | IoT for the lazy

“I recently took an ESP32-Cam module and built it into my mailbox. Got tired of walking outside to check it only to find it’s empty. It was a mostly straight forward process, however, I did run into a …

DIY 60W PD Power Bank With Arduino Real Time Battery Info Display

“Recently, I was planning to get a 60W PD power bank for my laptop so that I don’t need to worry about my laptop running out of battery during lectures. However, all the 60W power bank on the market …

Hex Infinity Mirror Pendant

“This instructables show how to use an Hex NeoPixel board to build an Hex Infinity Mirror Pendant. Supplies: - ATtiny45-20SU (and ISP programmer) - HEX NeoPixel LED Board - 10 mm LED Touch Switch - Four 360819 Lipo Batteries - 0.5 mm Two …

LED Lantern With Joule Thief

“This is a small LED lantern to be installed inside the farm storage house. As the size of the storage house is less than 10 square meters, the brightness of the LED lantern is not necessarily high and strong. This …