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).

Conversation Face

“You are alone? Maybe in quarantine? Need someone to talk to? Or just a friendly listener? Or do you want to have a nice argument? Your robot needs a cute face? Conversation face can help you. Supplies: - Arduino nano/Wemos …

Bicycle Journey Tracker With Arduino and GPS Module

“This is a bicycle journey recording device utilizing Arduino and a GPS module. Im riding an electrical bicycle from time to time during weekends. Several good bicycle riding routes which pass by the lakes and parks are located near to …

Attinyuino - an Arduino UNO Hat for the Attiny85

“A way to program and live-prototype with your Attiny85 with one board, without having to move the chip around. Introduction What’s it all about? Well, I was doing some programming and prototyping with the Attiny85 for my other project …

Project  fddEMU

fddEMU

“An AVR (atmega328p) based floppy drive emulator for PC fddEMU is a DIY floppy drive emulator. You can immediately begin testing fddEMU on serial terminal with an arduino nano, an SD adapter that converts 5 volts arduino power supply and …

Mini Oscilloscope using ATmega328p

“It’s a handy little gadget that draws charts automatically using signals you feed into it from the probes hooked up to an electronic circuit. Overview You’ve almost certainly drawn charts in school. Many of them show how a …

Bluetooth Volume Control For An Old Stereo With Buttons!

“How about getting rid of that broken volume knob on your stereo and replacing it with some buttons, LEDs and Bluetooth? What is it all about? It’s a rather detailed (hopefully) description on how to replace a stereo system …

Wireless Audio Transmission using Li-Fi

“Wireless Audio Transmission using Li-Fi using Red Pitaya Wireless Audio Transmission using Li-Fi Introduction to Li-Fi Li-Fi (also written as LiFi) acronym for Light Fidelity is a wireless communication technology that utilizes light to transmit data and position between devices …

Bluetooth RPM Letterboard

“A Rapid Prompting Method (RPM) letterboard with capacitive touch sensors & Bluetooth connectivity for enhanced functionality The Rapid Prompting Method (RPM) is a technique developed by Soma Mukhopadhyay as a vehicle for non-verbal autistic children (and adults) to communicate and pursue …

kitchen timer

“Here’s the bill of materials I ended up with: Teensy 2.0 Adafruit 16x9 Charlieplexed PWM LED Matrix Driver LED Charlieplexed Matrix - 9x16 LEDs - Warm White Rotary Encoder Solid Machined Metal Knob PowerBoost 500 Charger Lithium Ion Polymer Battery …

Automatic Volume Adjuster for LOUD MOVIE MUSIC

“In this project I will solve one of the biggest problems I have with modern movies. The problem is that the conversation volume is way too low in comparison to the music volume. That is why I combined an Arduino …