Switch-Board
About the Switch-Board
Switch-Board is an open source PCB design by Alex-Hermeling, published on GitHub. It is a 2-layer board measuring 96.8 × 70 mm, with 30 components from 5 distinct parts.
By type, the board carries 16 switches and 14 connectors.
From the project
A repo to store all of the KiCad files for this project
V0.1 has many problems with the schematic and the PCB design. First, the schematic contains a mistake with both XOR segments. A wire is supposed to go from the right resistor under Q10 to 5V and from the right resistor under Q14 to 5V. Also, the design of the PCB is flawed because it is hard to hand-solder. While designing this PCB, I was too focused on saving space, which should not have been the case for the first version. The input and output holes were too small to fit any regular-size wire. All of these problems were fixed in V0.3.
Switch-Board bill of materials (BOM)
30 components, 5 distinct parts — part numbers from the project's BOM.
| Qty | Part | Footprint | Refs |
|---|---|---|---|
| 2 | CONN_01X08_PIN Conn_01x08_Pin | PinSocket_2x04_P2.54mm_Vertical | J1, J3 |
| 2 | CONN_01X08_PIN Conn_01x08_Pin | PinHeader_1x08_P2.54mm_Vertical | J2, J4 |
| 5 | CONN_01X01_PIN Conn_01x01_Pin | Pin_D1.0mm_L10.0mm_LooseFit | J5, J6, J7, J8, J9 |
| 5 | CONN_01X01_PIN Conn_01x01_Pin | Pin_D1.4mm_L8.5mm_W2.8mm_FlatFork | J10, J11, J12, J13, J14 |
| 16 | SW_NIDEC_CAS-120A1 SW_Nidec_CAS-120A1 | 5mm_Linear_Switch | SW1, SW2, SW3, SW4, SW5, SW6, SW7, SW8 +8 |
Switch-Board design files
The KiCad project lives in the Alex-Hermeling/Transistor-Calculator repository on GitHub; these links point at the commit this page was built from.
Switch-Board: common questions
How big is the Switch-Board?
The Switch-Board measures 96.8 × 70 mm, has 2 copper layers and is 1.6 mm thick.
How many components are on the Switch-Board?
30 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 Switch-Board design files?
From the Alex-Hermeling/Transistor-Calculator repository on GitHub, which has the KiCad layout, the schematic and the BOM; the links under Design files point to each one.
Can I use the Switch-Board design in my own project?
The repository has no license, so all rights stay with Alex-Hermeling. Use it as a reference, and ask the author before reusing the design.
