G Pad Max

gav-vdm·G_Pad_Max·pcb/GPad_Max_Macropad/GPad_Max_Macropad.kicad_pcb

About the G Pad Max PCB

G Pad Max is an open source RP2040/RP2350 PCB design by gav-vdm, published on GitHub under the MIT license. It is a 2-layer board measuring 100 × 89 mm, with 37 components from 7 distinct parts.

Its main chip is the XIAO-RP2040-DIP, from the RP2040/RP2350 family. Other key parts include the SN74AHCT1G125DBVR. By type, the board carries 25 diodes, 9 switches, 2 ICs and 1 LED.

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

From the project

Hack Club Blueprint Hackpad.

I also need to review the firmware when I assemble the pcb.

G Pad Max, from the project README — From the project README

Main components on the G Pad Max

XIAO-RP2040-DIP SN74AHCT1G125DBVR

G Pad Max bill of materials (BOM)

37 components, 7 distinct parts.

Qty	Part	Footprint	Refs
1	XIAO-RP2040-DIP	XIAO-Generic-Hybrid-14P-2.54-21X17.8MM	U1
1	SN74AHCT1G125DBVR	SOT95P280X145-5N	U2
8	SW_Push	MX-Solderable-1U	SW1, SW2, SW3, SW4, SW5, SW6, SW8, SW9
1	RotaryEncoder_Switch	RotaryEncoder_Alps_EC11E-Switch_Vertical_H20mm	SW7
1	OLED_128X64_1.3_I2C	LCD_OLED_128X64_1.3_I2C	DS1
16	SK6812MINI	LED_SK6812MINI_PLCC4_3.5x3.5mm_P1.75mm	D1, D2, D3, D4, D5, D6, D7, D8 +8
9	1N4148	D_DO-35_SOD27_P7.62mm_Horizontal	D17, D18, D19, D20, D21, D22, D23, D24 +1

G Pad Max design files

The KiCad project lives in the gav-vdm/G_Pad_Max repository on GitHub; these links point at the commit this page was built from.

G Pad Max: common questions

What microcontroller does the G Pad Max use?

The G Pad Max is built around the XIAO-RP2040-DIP, from the RP2040/RP2350 family.

How big is the G Pad Max PCB?

The G Pad Max measures 100 × 89 mm, has 2 copper layers and is 1.6 mm thick.

How many components are on the G Pad Max?

37 components, from 7 distinct parts. The full bill of materials is listed on this page.

Where can I download the G Pad Max design files?

From the gav-vdm/G_Pad_Max repository on GitHub, which has the KiCad layout and the schematic; the links under Design files point to each one.

Can I use the G Pad Max design in my own project?

Yes, under the terms of its MIT license, which gav-vdm chose for the repository.

Can I test firmware for the G Pad Max 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.