C64pico

About the C64pico PCB

C64pico is an open source RP2040/RP2350 PCB design by silvervest, published on GitHub under the CERN-OHL-S-2.0 license. It is a 2-layer board measuring 102 × 81.5 mm, with 93 components from 88 distinct parts.

Its main chip is the Pico, from the RP2040/RP2350 family. Other key parts include the ATmega328PB-A and BQ24230RGTT. By type, the board carries 71 switches, 8 resistors, 3 ICs, 3 connectors, 3 diodes and 3 capacitors.

It belongs with the power & battery designs in this gallery.

From the project

This is a tiny emulated C64 running on a Raspberry Pi Pico! Full details of the build can be found at https://www.youtube.com/watch?v=hgLhGpbC6E4

It was designed to dangle around my neck from a lanyard while I was wandering the halls and sections of PAX Aus 2022. It measures 102x81x16mm!

Wanna build one yourself? I go over the full build steps of this in the video linked above!

C64pico, from the project README — From the project README

Main components on the C64pico

ATmega328PB-A BQ24230RGTT Pico

C64pico bill of materials (BOM)

93 components, 88 distinct parts.

Qty	Part	Footprint	Refs
1	ATmega328PB-A	TQFP-32_7x7mm_P0.8mm	U1
1	BQ24230RGTT	VQFN-16-1EP_3x3mm_P0.5mm_EP1.68x1.68mm_ThermalVias	U2
1	Pico	RPi_Pico_SMD	U3
1	ICSP	PinHeader_2x03_P2.54mm_Vertical	J3
1	CF4240FH0R0-05-NH	ILI9341	J5
1	Micro_SD_Card	Conn_uSDcard	J6
1	LiPo	JST_PH_S2B-PH-K_1x02_P2.00mm_Horizontal	BT1
1	CPT-9019S-SMT	Buzzer_CUI_CPT-9019S-SMT	LS1
1	0x0	SW_SPST_PTS647	SW1
1	1x0	SW_SPST_PTS647	SW2
1	2x0	SW_SPST_PTS647	SW3
1	3x0	SW_SPST_PTS647	SW4
1	4x0	SW_SPST_PTS647	SW5
1	5x0	SW_SPST_PTS647	SW6
1	6x0	SW_SPST_PTS647	SW7
1	7x0	SW_SPST_PTS647	SW8
1	0x1	SW_SPST_PTS647	SW9
1	1x1	SW_SPST_PTS647	SW10
1	2x1	SW_SPST_PTS647	SW11
1	3x1	SW_SPST_PTS647	SW12

Show 68 more

Qty	Part	Footprint	Refs
1	4x1	SW_SPST_PTS647	SW13
1	5x1	SW_SPST_PTS647	SW14
1	6x1	SW_SPST_PTS647	SW15
1	7x1	SW_SPST_PTS647	SW16
1	0x2	SW_SPST_PTS647	SW17
1	1x2	SW_SPST_PTS647	SW18
1	2x2	SW_SPST_PTS647	SW19
1	3x2	SW_SPST_PTS647	SW20
1	4x2	SW_SPST_PTS647	SW21
1	5x2	SW_SPST_PTS647	SW22
1	6x2	SW_SPST_PTS647	SW23
1	7x2	SW_SPST_PTS647	SW24
1	0x3	SW_SPST_PTS647	SW25
1	1x3	SW_SPST_PTS647	SW26
1	2x3	SW_SPST_PTS647	SW27
1	3x3	SW_SPST_PTS647	SW28
1	4x3	SW_SPST_PTS647	SW29
1	5x3	SW_SPST_PTS647	SW30
1	6x3	SW_SPST_PTS647	SW31
1	7x3	SW_SPST_PTS647	SW32
1	0x4	SW_SPST_PTS647	SW33
1	1x4	SW_SPST_PTS647	SW34
1	2x4	SW_SPST_PTS647	SW35
1	3x4	SW_SPST_PTS647	SW36
1	4x4	SW_SPST_PTS647	SW37
1	5x4	SW_SPST_PTS647	SW38
1	6x4	SW_SPST_PTS647	SW39
1	7x4	SW_SPST_PTS647	SW40
1	0x5	SW_SPST_PTS647	SW41
1	1x5	SW_SPST_PTS647	SW42
1	2x5	SW_SPST_PTS647	SW43
1	3x5	SW_SPST_PTS647	SW44
1	4x5	SW_SPST_PTS647	SW45
1	5x5	SW_SPST_PTS647	SW46
1	6x5	SW_SPST_PTS647	SW47
1	7x5	SW_SPST_PTS647	SW48
1	0x6	SW_SPST_PTS647	SW49
1	1x6	SW_SPST_PTS647	SW50
1	2x6	SW_SPST_PTS647	SW51
1	3x6	SW_SPST_PTS647	SW52
1	4x6	SW_SPST_PTS647	SW53
1	5x6	SW_SPST_PTS647	SW54
1	6x6	SW_SPST_PTS647	SW55
1	7x6	SW_SPST_PTS647	SW56
1	0x7	SW_SPST_PTS647	SW57
1	1x7	SW_SPST_PTS647	SW58
1	2x7	SW_SPST_PTS647	SW59
1	3x7	SW_SPST_PTS647	SW60
1	4x7	SW_SPST_PTS647	SW61
1	5x7	SW_SPST_PTS647	SW62
1	6x7	SW_SPST_PTS647	SW63
1	7x7	SW_SPST_PTS647	SW64
1	RESTORE	SW_SPST_PTS647	SW65
1	UP	SW_SPST_PTS647	SW66
1	DOWN	SW_SPST_PTS647	SW67
1	LEFT	SW_SPST_PTS647	SW68
1	RIGHT	SW_SPST_PTS647	SW69
1	FIRE	SW_SPST_PTS647	SW70
1	JS102011SAQN	SW_SPDT_CK-JS102011SAQN	SW71
1	YELLOW	LED_0603_1608Metric	D1
1	GREEN	LED_0603_1608Metric	D2
1	1N5819WS	D_SOD-323	D3
2	1uF	C_0402_1005Metric	C1, C2
1	100n	C_0402_1005Metric	C3
1	3k6	R_0603_1608Metric	R1
4	10k	R_0402_1005Metric	R2, R5, R11, R12
2	1k5	R_0402_1005Metric	R3, R4
1	10	R_0402_1005Metric	R10

C64pico design files

The KiCad project lives in the silvervest/c64pico repository on GitHub; these links point at the commit this page was built from.

Layoutc64pico.kicad_pcb
Schematicc64pico.kicad_sch

C64pico: common questions

What microcontroller does the C64pico use?

The C64pico is built around the Pico, from the RP2040/RP2350 family.

How big is the C64pico PCB?

The C64pico measures 102 × 81.5 mm, has 2 copper layers and is 1.6 mm thick.

How many components are on the C64pico?

93 components, from 88 distinct parts. The full bill of materials is listed on this page.

Where can I download the C64pico design files?

From the silvervest/c64pico repository on GitHub, which has the KiCad layout and the schematic; the links under Design files point to each one.

Can I use the C64pico design in my own project?

Yes, under the terms of its CERN-OHL-S-2.0 license, which silvervest chose for the repository.

Can I test firmware for the C64pico 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.