GameHand
About the GameHand PCB
GameHand is an open source AVR/Arduino PCB design by str-dst, published on GitHub under the CC-BY-NC-4.0 license. It is a 2-layer board measuring 143.7 × 111.3 mm, with 71 components from 18 distinct parts.
Its main chip is the ATmega32U2-AU, from the AVR/Arduino family. Other key parts include the SRV05-4. By type, the board carries 27 LEDs, 27 diodes, 6 capacitors, 6 resistors, 2 ICs and 1 crystal.
From the project
Left hand gaming keypad with a 3D printed case
The GameHand PCB is powered by an ATmega32u2 MCU and has basic ESD and overvoltage protection.
With the firmware files in this repo the board is capable of full NKRO and 1000 Hz USB polling.
Main components on the GameHand
GameHand bill of materials (BOM)
71 components, 18 distinct parts — part numbers from the project's BOM.
| Qty | Part | Footprint | Refs |
|---|---|---|---|
| 1 | ATmega32U2-AU | TQFP-32_7x7mm_P0.8mm | U1 |
| 1 | SRV05-4 | SOT-23-6 | U2 |
| 1 | CRYSTAL_GND24_SMALL Crystal_GND24_Small | Crystal_SMD_3225-4Pin_3.2x2.5mm | X1 |
| 1 | USB_C_Receptacle_USB2.0 | USB_C_Receptacle_HRO_TYPE-C-31-M-12 | J1 |
| 1 | C69688 Polyfuse_Small | Fuse_1206_3216Metric | F1 |
| 21 | MX-NoLED | MXOnly-1U-NoLED | MX1, MX2, MX3, MX4, MX5, MX6, MX14, MX15 +13 |
| 1 | MX-NoLED | MXOnly-1.25U-NoLED | MX27 |
| 1 | MX-NoLED | MXOnly-1.75U-NoLED | MX40 |
| 3 | MX-NoLED | MXOnly-1.5U-NoLED | MX53, MX54, MX55 |
| 1 | MX-NoLED | MXOnly-2.75U-ReversedStabilizers-NoLED | MX58 |
| 27 | C81598 D_Small | D_SOD-123 | D1, D2, D3, D4, D5, D6, D14, D15 +19 |
| 1 | 10UF 10uF | C_0805_2012Metric | C1 |
| 2 | 0.1UF 0.1uF | C_0805_2012Metric | C2, C3 |
| 1 | 1UF 1uF | C_0805_2012Metric | C7 |
| 2 | 22PF 22pF | C_0805_2012Metric | C8, C9 |
| 2 | 22R 22r | R_0805_2012Metric | R1, R2 |
| 2 | 10K 10k | R_0805_2012Metric | R3, R4 |
| 2 | 5.1K 5.1k | R_0805_2012Metric | R5, R6 |
GameHand design files
The KiCad project lives in the str-dst/GameHand repository on GitHub; these links point at the commit this page was built from.
GameHand: common questions
What microcontroller does the GameHand use?
The GameHand is built around the ATmega32U2-AU, from the AVR/Arduino family.
How big is the GameHand PCB?
The GameHand measures 143.7 × 111.3 mm, has 2 copper layers and is 1.6 mm thick.
How many components are on the GameHand?
71 components, from 18 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 GameHand design files?
From the str-dst/GameHand repository on GitHub, which has the KiCad layout and the BOM; the links under Design files point to each one.
Can I use the GameHand design in my own project?
It is published under CC-BY-NC-4.0, which limits how it may be reused; read the license before building on it.
Can I test firmware for the GameHand without the hardware?
Yes. HardLabs builds a simulation of the board from its netlist and BOM, so you can run and debug AVR/Arduino firmware against it before you order a PCB.
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