HardLabs

ChillBoard

shreeyuvan2020·ChillBoard·PCB/Chillboard.kicad_pcb

ChillBoard PCB layout, top view — open source Nordic nRF board by shreeyuvan2020

About the ChillBoard PCB

ChillBoard is an open source Nordic nRF PCB design by shreeyuvan2020, published on GitHub. It is a 2-layer board measuring 150.3 × 93.9 mm, with 184 components from 14 distinct parts.

Its main chip is the XIAO-nRF52840-SMD, from the Nordic nRF family. Other key parts include the PCF8574AP. By type, the board carries 84 diodes, 44 switches, 42 capacitors, 6 resistors, 4 ICs and 2 LEDs.

It belongs with the keyboards, iot & wireless and displays & leds designs in this gallery.

From the project

ChillBoard

- - - !FullFull ## PCB I designed the PCB with mousebites to make the split keyboard easy to manufacture. I thought of making a reversible PCB at first, but it would be very difficult with an OLED. ### Left side of the PCB ### Full PCB ### 3D View ## CAD I designed the CAD with ease of assembly in mind. That is why I designed it with no tolerances, so that it could completely friction fit(I added screw holes for the worst case). I decided to print it with an extra fine setting on my Bambu Lab A1 Mini 3D printer, and it turned out great. ### Bottom Case ### Top Plate ### Full Assembly ###…

ChillBoard, from the project README
From the project README

Main components on the ChillBoard

XIAO-nRF52840-SMDPCF8574AP

ChillBoard bill of materials (BOM)

184 components, 14 distinct parts.

QtyPartRefs
2
XIAO-nRF52840-SMD
U1, U2
2
PCF8574AP
U3, U4
2
~
PIR1, PIR2
40
SW_Push
SW1, SW2, SW3, SW4, SW5, SW6, SW9, SW10 +32
2
SW_Push
SW7, SW8
2
RotaryEncoder
SW43, SW44
2
~
OLED1, OLED2
42
D
D1, D2, D3, D4, D5, D6, D7, D8 +34
42
SK6812MINI
D43, D44, D45, D46, D47, D48, D49, D50 +34
34
0.1 μF
C1, C2, C3, C4, C5, C6, C7, C8 +26
8
C
C11, C12, C13, C19, C25, C31, C37, C43
2
330 OMHS
R1, R2
2
806k
R3, R4
2
2M
R5, R6

ChillBoard design files

The KiCad project lives in the shreeyuvan2020/ChillBoard repository on GitHub; these links point at the commit this page was built from.

ChillBoard: common questions

What microcontroller does the ChillBoard use?

The ChillBoard is built around the XIAO-nRF52840-SMD, from the Nordic nRF family.

How big is the ChillBoard PCB?

The ChillBoard measures 150.3 × 93.9 mm, has 2 copper layers and is 1.6 mm thick.

How many components are on the ChillBoard?

184 components, from 14 distinct parts. The full bill of materials is listed on this page.

Where can I download the ChillBoard design files?

From the shreeyuvan2020/ChillBoard repository on GitHub, which has the KiCad layout and the schematic; the links under Design files point to each one.

Can I use the ChillBoard design in my own project?

The repository has no license, so all rights stay with shreeyuvan2020. Use it as a reference, and ask the author before reusing the design.

Can I test firmware for the ChillBoard 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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