KeyModule-L
About the KeyModule-L PCB
KeyModule-L is an open source PCB design by cho45, published on GitHub. It is a 2-layer board measuring 173.5 × 145 mm, with 86 components from 7 distinct parts.
Other key parts include the MCP23017. By type, the board carries 2 battery holders, 1 IC, 1 connector and 1 capacitor.
It belongs with the keyboards designs in this gallery.
From the project
Keyboard project
Open Root.sch for viewing overall schematic.
BLE Nano (nRF51288) MCP23017 (I2C GPIO) * Gateron Switches (Cherry MX compatible)
https://developer.mbed.org/users/cho45/code/keyboard/
Main components on the KeyModule-L
KeyModule-L bill of materials (BOM)
86 components, 7 distinct parts.
| Qty | Part | Footprint | Refs |
|---|---|---|---|
| 1 | MCP23017 | DIP-28_W7.62mm_LongPads | U2 |
| 1 | RJ45 | RJ45-7810-XPXC | J1 |
| 2 | NiMH1.2V | BAT-P-00308 | BT2, BT3 |
| 1 | CONN_01X06 | Socket_Strip_Straight_1x06 | CONBUS1 |
| 40 | D | Diode_DO-35_SOD27_Horizontal_RM10 | D_L0, D_L1, D_L2, D_L3, D_L4, D_L5, D_L10, D_L11 +32 |
| 40 | SW_PUSH | MX1A | SW_53, SW_54, SW_55, SW_63, SW_L0, SW_L1, SW_L2, SW_L3 +32 |
| 1 | 0.1u | C_Rect_L4_W2.5_P2.5 | C1 |
KeyModule-L design files
The KiCad project lives in the cho45/Keble repository on GitHub; these links point at the commit this page was built from.
- LayoutKeyModule-L.kicad_pcb
KeyModule-L: common questions
How big is the KeyModule-L PCB?
The KeyModule-L measures 173.5 × 145 mm, has 2 copper layers and is 1.6 mm thick.
How many components are on the KeyModule-L?
86 components, from 7 distinct parts. The full bill of materials is listed on this page.
Where can I download the KeyModule-L design files?
From the cho45/Keble repository on GitHub, which has the KiCad layout; the links under Design files point to each one.
Can I use the KeyModule-L design in my own project?
The repository has no license, so all rights stay with cho45. Use it as a reference, and ask the author before reusing the design.
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