Electronics

Aditional fan control for Ramps 1.4

Electronics Hardware mods 3D Printing

Phantom power for mic

As a bonus here is the BM800 teardown

Electronics Audio

Reverse engineering inverter to light up a LCD Backlight bulb without a laptop

How to reverse engineer a circuit in order to find out its pinout

Reverse-engineering

Turn an old car radio into a Hi-Fi Audio Amplifier

A step-by-step tutorial

Tutorial Instructables Arduino Reverse-engineering

Evc_pt2257

Arduino Library for using PT2257 - Electronic Volume Controller IC (a.k.a Digital Potentiometer)

C++ library Arduino i2c Audio

Making a Professional Looking Remote Control for Your Arduino Project at Home

A step-by-step tutorial

Instructables Tutorial DIY Audio Infrared

Remote Volume Control for Old Stereo Amp

A step-by-step tutorial

Tutorial Electronics Arduino Audio

Modding Auto-reset to CP2102 USB to TTL Serial Adapter to Program Arduino Pro Mini Like the FTDI Board

A step-by-step tutorial

Electronics Hardware mods Arduino Instructables Tutorial DIY

Add Bluetooth to Your Old Car StereoAdd Bluetooth to Your Old Car Stereo

A step-by-step tutorial

Instructables Tutorial Bluetooth Audio

Driving a 7 Segments Display

How I wrote a library that drives the 2 displays without a driver

Arduino library 7-segment-display

Turn a Broken Laptop Screen Into a Portable Light Table for Drawing

A step-by-step tutorial

Tutorial Instructables Recycling Javascript