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MainBoard

tristanmelton·FaradayFightstick·PCB/MainBoard.kicad_pcb

MainBoard PCB layout, top view — open source RP2040/RP2350 board by tristanmelton

About the MainBoard PCB

MainBoard is an open source RP2040/RP2350 PCB design by tristanmelton, published on GitHub under the MIT license. It is a 2-layer board measuring 259.5 × 132.8 mm, with 59 components from 20 distinct parts.

Its main chip is the Pico, from the RP2040/RP2350 family. Other key parts include the ADC108S022CIMTX/NOPB, DRV5053VAQDBZR and ATmega32U4-A. By type, the board carries 37 ICs, 8 capacitors, 8 resistors, 2 diodes, 1 crystal and 1 connector.

It belongs with the sensors designs in this gallery.

From the project

Utilize Hall Effect sensors in an open-source leverless

Use an ATMEGA microcontroller to read the analog out from the hall effect sensor located on the opposite side of the PCB from the switch. Then, the ATMEGA will act as the switch and output high or low to a Brooks board for each button press.

There are board versions for a RP2040, Brooks P5 Mini and Brooks Gen-5X Mini. I have tested the RP2040 and P5 Mini versions and they both work on PC. ## Setup The board is relatively simple to set up - the most difficult part was soldering the USB-C for the ATMEGA32u4. I have no reflow oven so I used my conventional oven with solder paste, which works…

Main components on the MainBoard

ADC108S022CIMTX/NOPBDRV5053VAQDBZRATmega32U4-APico

MainBoard bill of materials (BOM)

59 components, 20 distinct parts.

QtyPartRefs
2
ADC108S022CIMTX/NOPB
U1, U3
16
~
U2, U21, U22, U23, U24, U25, U26, U27 +8
16
DRV5053VAQDBZR
U4, U5, U6, U7, U8, U9, U10, U11 +8
1
ATmega32U4-A
U20
1
~
U36
1
Pico
U37
1
Crystal_GND24
Y2
1
USB4105-GF-A
J1
1
~
Brooks1
1
SW_Push
SW_RESET1
1
LED_GREEN
D1
1
LED_RED
D2
4
0.1u
C3, C4, C5, C6
1
4.7u
C7
2
22p
C8, C10
1
1u
C11
2
22
R2, R3
2
1k
R4, R5
2
10k
R6, R7
2
5.1k
R9, R10

MainBoard design files

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

MainBoard: common questions

What microcontroller does the MainBoard use?

The MainBoard is built around the Pico, from the RP2040/RP2350 family.

How big is the MainBoard PCB?

The MainBoard measures 259.5 × 132.8 mm, has 2 copper layers and is 1.6 mm thick.

How many components are on the MainBoard?

59 components, from 20 distinct parts. The full bill of materials is listed on this page.

Where can I download the MainBoard design files?

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

Can I use the MainBoard design in my own project?

Yes, under the terms of its MIT license, which tristanmelton chose for the repository.

Can I test firmware for the MainBoard without the hardware?

Yes. HardLabs builds a simulation of the board from its netlist and BOM, so you can run and debug RP2040/RP2350 firmware against it before you order a PCB.

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