Mooncake RevC ESO
d4rkwyng·mooncake-addon
About the Mooncake RevC ESO PCB
Mooncake RevC ESO is an open source PCB design by d4rkwyng, published on GitHub under the MIT license. It is a 2-layer board measuring 46 × 48.4 mm, with 23 components from 5 distinct parts.
Other key parts include the MCP23017. By type, the board carries 10 diodes, 10 resistors, 1 IC, 1 crystal and 1 capacitor.
From the project
Mooncake (Final Space) #badgelife shitty addon PCB for DEF CON 26 (KiCad)
A #badgelife shitty addon PCB inspired by Mooncake from Final Space, designed for DEF CON 26.
Created by @d4rkwyng. Thanks to AND!XOR and SparX for their help with this project.
- Rev C — Final revision with ESO variant - Rev B — Updated layout and routing - Rev A — Initial prototype

Main components on the Mooncake RevC ESO
Mooncake RevC ESO bill of materials (BOM)
23 components, 5 distinct parts — part numbers from the project's BOM.
| Qty | Part | Footprint | Refs |
|---|---|---|---|
| 1 | MCP23017 | MCP23017-ESS_NoSilk | U1 |
| 1 | Badgelife_shitty_connector | Badgelife-Shitty-2x2 | X1 |
| 10 | LED | LED_1206_HandSoldering_MinSilk | D1, D2, D3, D4, D5, D6, D7, D8 +2 |
| 1 | 0.1uf | C_1206_HandSoldering_NoSilk | C1 |
| 10 | 220 | R_1206_HandSoldering_NoSilk | R1, R2, R3, R4, R5, R6, R7, R8 +2 |
Mooncake RevC ESO design files
The KiCad project lives in the d4rkwyng/mooncake-addon repository on GitHub; these links point at the commit this page was built from.
Mooncake RevC ESO: common questions
How big is the Mooncake RevC ESO PCB?
The Mooncake RevC ESO measures 46 × 48.4 mm, has 2 copper layers and is 1.6 mm thick.
How many components are on the Mooncake RevC ESO?
23 components, from 5 distinct parts, with part numbers taken from the project's own BOM. The full bill of materials is listed on this page.
Where can I download the Mooncake RevC ESO design files?
From the d4rkwyng/mooncake-addon repository on GitHub, which has the KiCad layout and the BOM; the links under Design files point to each one.
Can I use the Mooncake RevC ESO design in my own project?
Yes, under the terms of its MIT license, which d4rkwyng chose for the repository.