Raspberry Pi single board computers are wonderful devices. They can do so many things, including interact with sensors, inputs, and outputs with their GPIO (general purpose Input/Output) pins -- however, analog input and output are not available on the stock Raspberry Pi.

What happens when you want to turn some knobs or slide some faders? No fear, it's simple to add an Analog-to-Digital Converter (ADC) and this guide is going to show you how!

You'll use the retro-tastic CYBERDECK Hat to add some STEMMA QT / Qwiic compatible I2C connectors to the Raspberry Pi 400, and then plug in the PCF8591 Quad 8-Bit ADC + DAC breakout board. The PCF8591 makes it simple to add four potentiometers to your Pi project.

Add a PiTFT to the mix and you'll have a compact and stylish computing setup that you can use for live music coding jams including four knobs to twiddle!

Parts

Angled shot of a Raspberry Pi 400 Desktop.
Raspberry Pi 400 is a complete Raspberry Pi 4-based personal computer, integrated into a keyboard. The Pi 4 is the first computer from the Pi Foundation that really feels 'desktop...
Out of Stock
A collection of electronic parts included in kit.
Raspberry Pi 400 is a complete Raspberry Pi 4-based personal computer, integrated into a keyboard. The Pi 4 is the first computer from the Pi Foundation that really feels 'desktop...
Out of Stock
Video of a person typing code on a Pi 400 keyboard. A PiTFT display is connected to the keyboard, and a heart wallpaper appears on the TFT.
Cyber-warriors, listen up here! We’ve got with some zero-day unreleased hardware we just dumpster-dived. Now you can crack kodes, and write skripts with style, thanks to the...
$8.95
In Stock
Blue polished finger touching the PiTFT Plus 480x320 3.5" TFT+Touchscreen for Raspberry Pi.
Is this not the cutest, little display for the Raspberry Pi? It features a 3.5" display with 480x320 16-bit color pixels and a resistive touch overlay
Out of Stock
Angled shot of Adafruit PCF8591 Quad 8-bit ADC + 8-bit DAC - STEMMA QT / Qwiic.
Measuring voltage and adjusting it is what electronics is all about so you won’t get far without friends like the Adafruit PCF8591 Quad 8-bit ADC + 8-bit DAC...
$6.50
In Stock
Angled shot of STEMMA QT / Qwiic JST SH 4-pin Cable.
This 4-wire cable is a little over 100mm / 4" long and fitted with JST-SH female 4-pin connectors on both ends. Compared with the chunkier JST-PH these are 1mm pitch instead of...
$0.95
In Stock
USB Audio Adapter - Works with Raspberry Pi
The Raspberry Pi has an on-board audio jack, which is super handy for all kinds of sound effects and speech, just plug and go! However, for when you want better audio for music...
$4.95
In Stock

Optional

Two square-ish USB Powered Speakers
Add some extra boom to your audio project with these powered loudspeakers. We sampled half a dozen different models to find ones with a good frequency response, so you'll get...
$9.95
In Stock
Top down view of a 10.1" 1366x768 Display IPS + Speakers next to US quarter for scale.
Yes, this is an adorable HDMI television with incredibly high resolution and built in 3.5W stereo speakers! We tried to get the best possible HDMI/VGA display with...
$189.95
In Stock
Hook-up Wire Spool Set in box with 6 colorful wires coming out
Perfect for bread-boarding, free wiring, etc. This box contains 6 spools of solid-core wire. The wire is easy to solder to and when bent it keeps its shape pretty well. We like to have...
$15.95
In Stock
Red and black multi-size wire stripplers, closed
These are the finest wire strippers we have used, and if you have to do a lot of wiring, you will agree! They have soft rounded grips - very comfortable to use, and precision ground...
$14.95
In Stock
Red and black diagonal flush cutters
These are the best diagonal cutters, large super-comfortable grip to use and have strong nippers for perfect trimming of wires and leads. I've used my pair every day for years.
$7.25
In Stock

This guide was first published on Apr 02, 2021. It was last updated on Apr 02, 2021.

This page (Overview) was last updated on May 15, 2022.

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