I2c thumb keyboard
About the I2c thumb keyboard PCB
I2c thumb keyboard is an open source PCB design by AnthonyDiGirolamo, published on GitHub under the MIT license. It is a 2-layer board measuring 97.2 × 81.3 mm, with 81 components from 10 distinct parts.
Other key parts include the TCA8418. By type, the board carries 60 switches, 10 diodes, 4 resistors, 3 connectors, 3 capacitors and 1 IC.
It belongs with the keyboards designs in this gallery.
From the project
Handheld tactile switch keyboard using the TCA8418.
Main components on the I2c thumb keyboard
I2c thumb keyboard bill of materials (BOM)
81 components, 10 distinct parts.
| Qty | Part | Footprint | Refs |
|---|---|---|---|
| 1 | TCA8418 | WQFN-24-1EP_4x4mm_P0.5mm_EP2.7x2.7mm | U2 |
| 1 | Conn_01x06_Male | PinHeader_1x06_P2.54mm_Vertical | J5 |
| 1 | Conn_01x04_Male | PinSocket_1x04_P2.54mm_Vertical | J6 |
| 1 | Conn_01x04_Male | JST_PH_S4B-PH-SM4-TB_1x04-1MP_P2.00mm_Horizontal | J7 |
| 60 | SW_Push | SW_SPST_EVQQ2 | SW1, SW2, SW3, SW4, SW5, SW6, SW7, SW8 +52 |
| 10 | D_Zener_Small | D_SOD-323_HandSoldering | D1, D2, D3, D4, D5, D6, D7, D8 +2 |
| 2 | 0.1uF | C_0603_1608Metric_Pad1.05x0.95mm_HandSolder | C1, C2 |
| 1 | 10uF | C_0603_1608Metric_Pad1.05x0.95mm_HandSolder | C3 |
| 2 | 10k | R_0603_1608Metric_Pad1.05x0.95mm_HandSolder | R1, R4 |
| 2 | 4.7k | R_0603_1608Metric_Pad1.05x0.95mm_HandSolder | R2, R3 |
I2c thumb keyboard design files
The KiCad project lives in the AnthonyDiGirolamo/i2c-thumb-keyboard repository on GitHub; these links point at the commit this page was built from.
I2c thumb keyboard: common questions
How big is the I2c thumb keyboard PCB?
The I2c thumb keyboard measures 97.2 × 81.3 mm, has 2 copper layers and is 1.6 mm thick.
How many components are on the I2c thumb keyboard?
81 components, from 10 distinct parts. The full bill of materials is listed on this page.
Where can I download the I2c thumb keyboard design files?
From the AnthonyDiGirolamo/i2c-thumb-keyboard repository on GitHub, which has the KiCad layout; the links under Design files point to each one.
Can I use the I2c thumb keyboard design in my own project?
Yes, under the terms of its MIT license, which AnthonyDiGirolamo chose for the repository.
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