Switch plate
About the Switch plate PCB
Switch plate is an open source Nordic nRF PCB design by derui, published on GitHub under the MIT license. It is a 2-layer board measuring 124 × 80.8 mm, with 83 components from 11 distinct parts.
Its main chip is the XIAO-nRF52840-SMD, from the Nordic nRF family. By type, the board carries 43 switches, 29 diodes, 6 resistors, 2 capacitors, 1 IC and 1 transistor.
Main components on the Switch plate
Switch plate bill of materials (BOM)
83 components, 11 distinct parts.
| Qty | Part | Footprint | Refs |
|---|---|---|---|
| 1 | XIAO-nRF52840-SMD | XIAO-nRF52840-SMD | U1 |
| 1 | DMG3414U | SOT-23 | Q1 |
| 1 | Conn_01x03 | JST_ZH_B3B-ZR_1x03_P1.50mm_Vertical | J3 |
| 42 | SW_Push | SW_Hole_1u_16.5 | SW1, SW2, SW3, SW4, SW5, SW6, SW7, SW8 +34 |
| 1 | RotaryEncoder_Switch | RotaryEncoder_EC12E | SW46 |
| 29 | D | Diode_SMD | D1, D2, D3, D4, D9, D11, D12, D13 +21 |
| 2 | 0.1uF | C_0603_1608Metric_Pad1.08x0.95mm_HandSolder | C3, C4 |
| 2 | 2.2K | R_0805_2012Metric_Pad1.20x1.40mm_HandSolder | R3, R4 |
| 1 | 22k | R_0805_2012Metric_Pad1.20x1.40mm_HandSolder | R7 |
| 2 | 470k | R_0805_2012Metric_Pad1.20x1.40mm_HandSolder | R8, R9 |
| 1 | 1M | R_0805_2012Metric_Pad1.20x1.40mm_HandSolder | R10 |
Switch plate design files
The KiCad project lives in the derui/Clairink repository on GitHub; these links point at the commit this page was built from.
Switch plate: common questions
What microcontroller does the Switch plate use?
The Switch plate is built around the XIAO-nRF52840-SMD, from the Nordic nRF family.
How big is the Switch plate PCB?
The Switch plate measures 124 × 80.8 mm, has 2 copper layers and is 1.6 mm thick.
How many components are on the Switch plate?
83 components, from 11 distinct parts. The full bill of materials is listed on this page.
Where can I download the Switch plate design files?
From the derui/Clairink repository on GitHub, which has the KiCad layout and the schematic; the links under Design files point to each one.
Can I use the Switch plate design in my own project?
Yes, under the terms of its MIT license, which derui chose for the repository.
Can I test firmware for the Switch plate without the hardware?
Yes. HardLabs builds a simulation of the board from its netlist and BOM, so you can run and debug Nordic nRF firmware against it before you order a PCB.
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