RC6802 Keypad
tebl·RC6802-Microchicken·RC6802 Keypad/RC6802 Keypad.kicad_pcb
About the RC6802 Keypad PCB
RC6802 Keypad is an open source PCB design by tebl, published on GitHub under the CERN-OHL-1.2 license. It is a 2-layer board measuring 64.8 × 61.6 mm, with 22 components from 19 distinct parts.
By type, the board carries 17 switches, 4 modules and 1 connector.
It belongs with the retro computing designs in this gallery.
From the project
Computer based on the Motorola 6802 processor, called RC6802 Microchicken as it's an adaption of the one found in a computer projects book by Daniel Metzger.
When starting out with retro computers, both fictional made homebrew or the commercial ones that were actually available for purchase in the 70s and 80s, there's one book in particular I've particularly enjoyed reading - that book is "22 micro-computer projects - to build, learn and learn" by Daniel Metzger (check out ebay or abebooks.com for a copy). Written in 1985 on the tail-end of the homebrew computer-period, it gathers what I believe is the culmination of 10 years of teaching basic electronics, digital logic and computers to people without any prior knowledge for any of those things -…

RC6802 Keypad bill of materials (BOM)
22 components, 19 distinct parts.
| Qty | Part | Footprint | Refs |
|---|---|---|---|
| 4 | Mounting | 1pin | M1, M2, M3, M4 |
| 1 | EXT_KEYPAD | Pin_Header_Straight_2x05_Pitch2.54mm | J3 |
| 1 | RESET | SW_PUSH_6mm | SW1 |
| 1 | Ø | SW_PUSH_6mm | SW3 |
| 1 | 4 | SW_PUSH_6mm | SW4 |
| 1 | 8 | SW_PUSH_6mm | SW5 |
| 1 | C | SW_PUSH_6mm | SW6 |
| 1 | 1 | SW_PUSH_6mm | SW7 |
| 1 | 5 | SW_PUSH_6mm | SW8 |
| 1 | 9 | SW_PUSH_6mm | SW9 |
| 1 | D | SW_PUSH_6mm | SW10 |
| 1 | 2 | SW_PUSH_6mm | SW11 |
| 1 | 6 | SW_PUSH_6mm | SW12 |
| 1 | A | SW_PUSH_6mm | SW13 |
| 1 | E | SW_PUSH_6mm | SW14 |
| 1 | 3 | SW_PUSH_6mm | SW15 |
| 1 | 7 | SW_PUSH_6mm | SW16 |
| 1 | B | SW_PUSH_6mm | SW17 |
| 1 | F | SW_PUSH_6mm | SW18 |
RC6802 Keypad design files
The KiCad project lives in the tebl/RC6802-Microchicken repository on GitHub; these links point at the commit this page was built from.
RC6802 Keypad: common questions
How big is the RC6802 Keypad PCB?
The RC6802 Keypad measures 64.8 × 61.6 mm, has 2 copper layers and is 1.6 mm thick.
How many components are on the RC6802 Keypad?
22 components, from 19 distinct parts. The full bill of materials is listed on this page.
Where can I download the RC6802 Keypad design files?
From the tebl/RC6802-Microchicken repository on GitHub, which has the KiCad layout; the links under Design files point to each one.
Can I use the RC6802 Keypad design in my own project?
Yes, under the terms of its CERN-OHL-1.2 license, which tebl chose for the repository.
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