Jade DIY 65% Keyboard PCB

PCB Designs

Jade is a 65% keyboard PCB, designed in the UK and fully open source, it is powered by a ATMega32A microcontroller with a USB-C interface. The board allows ISP (bootloader) programming (via SPI) and is fully QMK compatible.

It is entirely constructed with through hole components and is designed to be buildable at home with a minimal amount of equipment.

Features

• 65% Keyboard
• ANSI & ISO Layouts
• USB-C
• 5 Pin MX Style Switch Support
• QMK Firmware
• Low Cost
• Through Hole Design
• Simple Home Assembly

Availability

Jade is in pre-production testing and there is no current timeframe for a DIY kit release, however it is hopefully that this will occur in 2021. All details, schematics, gerbers and component lists will be provided, all for free and all open source.

Components List

The board requires the following components. I have given links to examples of most components so you may source them from preferred suppliers.

• 1 x ATMega32A (U1)
• 1 x 40 Pin Dip Socket
• 1 x 16 Mhz Crystal (Y1)
• 1 x 10k Resistor (R1)
• 2 x 5.1k Resistor (R2 & R3)
• 2 x 68R Resistor (R4 & R5)
• 1 x 1.5k Resistor (R6)
• 2 x 22pF Capacitor (C1 & C2)
• 1 x 4.7uF Electrolytic Capacitor (C3)
• 2 x 0.1uF Capacitor (C4 & C5)
• 2 x 3.6v Zener Diode (D1 & D2)
• 68 x 1N4148 Diode
• 2 x Flat Switch (Boot & Reset)
• 1 x USB-C Connector (USB1)
• 1 x Box Header (J1-ISP1)
• 1 x 500mA Resettable Fuse
• 5 Pin MX Style Switches & Screw-In Stabilisers

If you are sourcing the components yourself and not via a DIY kit (or if you wish to flash your own boot loader), you will need additional hardware to do ISP programming. A Pro Micro is an inexpensive microcontroller for such a task and well documented, it is suggested you use one of these and the guides will assume one is being used.

Design Files

All of the design files for this project are openly available for anyone to download, use, edit or build their own hardware on. I have gained so much from other makers who have shared their work openly it is only fair that I do the same.

You will find the main GitHub repository here Draytronics Jade Kicad Project. This contains the full Kicad project for the design and manufacture of the PCB and laser cut files for the acrylic case.

Build Guide

A complete will be available when the product is released.

Firmware Programming Guide

A guide to programming the firmware will be available when the product is released.