Soup Pad

souptik-samanta·Soup_Pad·pcb/keypad.kicad_pcb

About the Soup Pad PCB

Soup Pad is an open source RP2040/RP2350 PCB design by souptik-samanta, published on GitHub. It is a 2-layer board measuring 88.9 × 150 mm, with 61 components from 11 distinct parts.

Its main chip is the MOUDLE-SEEEDUINO-XIAO, from the RP2040/RP2350 family. Other key parts include the MCP23008-XSO. By type, the board carries 25 LEDs, 14 switches, 12 diodes, 6 resistors, 2 connectors and 1 IC.

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

From the project

This project involves the assembly of various electronic components, which I will be soldering by hand. Below is the Bill of Materials (BOM) for the project:

This project is made with love by Souptik Samanta.

Soup Pad, from the project README — From the project README

Main components on the Soup Pad

MCP23008-XSO

Soup Pad bill of materials (BOM)

61 components, 11 distinct parts — part numbers from the project's BOM.

Qty	Part	Footprint	Refs
1	MCP23008-XSO MCP23008-xSO	SOIC-18W_7.5x11.6mm_P1.27mm	U1
1	MOUDLE-SEEEDUINO-XIAO	RP2040	M2
1	VL53L0X	PinHeader_1x06_P2.54mm_Vertical	J2
1	DHT11	PinHeader_1x06_P2.54mm_Vertical	J3
12	SW_PUSH_45DEG SW_Push_45deg	SW_Cherry_MX_1.00u_PCB	SW1, SW2, SW3, SW4, SW5, SW6, SW7, SW8 +4
2	RotaryEncoder_Switch	RotaryEncoder_Alps_EC11E-Switch_Vertical_H20mm	SW15, SW16
1	SSD1306	SSD1306_0.96_Oled	Brd1
24	WS2812B	LED_WS2812B_PLCC4_5.0x5.0mm_P3.2mm	LED1, LED2, LED3, LED4, LED5, LED6, LED7, LED8 +16
12	D	D_DO-35_SOD27_P7.62mm_Horizontal	D1, D2, D3, D4, D5, D6, D7, D8 +4
4	10K	R_0805_2012Metric_Pad1.20x1.40mm_HandSolder	R1, R5, R6, R7
2	4.7K	R_0805_2012Metric_Pad1.20x1.40mm_HandSolder	R3, R4

Soup Pad design files

The KiCad project lives in the souptik-samanta/Soup_Pad repository on GitHub; these links point at the commit this page was built from.

Soup Pad: common questions

What microcontroller does the Soup Pad use?

The Soup Pad is built around the MOUDLE-SEEEDUINO-XIAO, from the RP2040/RP2350 family.

How big is the Soup Pad PCB?

The Soup Pad measures 88.9 × 150 mm, has 2 copper layers and is 1.6 mm thick.

How many components are on the Soup Pad?

61 components, from 11 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 Soup Pad design files?

From the souptik-samanta/Soup_Pad repository on GitHub, which has the KiCad layout, the schematic and the BOM; the links under Design files point to each one.

Can I use the Soup Pad design in my own project?

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

Can I test firmware for the Soup Pad 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.