4 layers48 × 35 mm
4 layers26 × 30.6 mm
Pico2-expansion card
riscfruit/FramePico2-Expansion-Card5FramePico2 Expansion Card for Framework laptops and any other hardware useful for debugging other hardware and controlling I2C/UART modules, based on RP2354
- Size
- 26 × 30.6 mm
- Copper layers
- 4
- Thickness
- 0.8 mm
- Parts
- 70
- Nets
- 73
- Pads
- 247
- Tracks, vias
- 408, 122
- Pours
- 6
- Routed
- Yes
- KiCad
- KiCad 10.0 (file 20260206)
- Created
- 6 Aug 2026
- Updated
- 6 Nov 2026
Overview
Pico2-expansion card is an open-source printed circuit board by riscfruit, from the riscfruit/FramePico2-Expansion-Card repository on GitHub, published under the CERN-OHL-S-2.0 licence. It is a 4-layer board of 26 × 30.6 mm with 70 parts on 73 nets, routed with 408 tracks and 122 vias.
It is built around the RP2354A and ABM8-272-T3. Its parts include 23 capacitors, 21 resistors, 4 diodes, 3 ICs and 3 connectors. It belongs with the RP2350 boards of this library.
Main components
2
RP2354A
QFN-60(7x7)150MHz 32 Bit ARM Cortex-M33 Built-in+External Power-on reset (POR)、Undervoltage detection (BOR/LVD/LVR/LVI)、Watchdog reset、Built-in general-purpose timer、Integrated LDO、Calendar function、True random number generator (TRNG)、Hardware ECC check、Independent watchdog (IWDG) QFN-60(7x7) Microcontrollers (MCU/MPU/SOC) ROHSRaspberry PiMicrocontrollers (MCU/MPU/SOC)
ABM8-272-T3
SMD3225-4P-40℃~+85℃ 10pF 12MHz 50Ω SMD crystal oscillator ±30ppm ±30ppm SMD3225-4P Crystals ROHSAbraconCrystals
README
README.mdFramePico2-Expansion-Card
An expansion card for Framework laptops and any other hardware, based on RP2354
Gallery
Parts
70| Qty | Value | Footprint | References |
|---|---|---|---|
| 12 | 100n | Capacitor_SMD:C_0402_1005Metric | C8, C9, C10, C11, C12, C13, C14, C17, C18, C22, C23, C25 |
| 8 | TestPoint | TestPoint:TestPoint_Pad_1.0x1.0mm | TP1, TP2, TP3, TP4, TP5, TP6, TP7, TP8 |
| 4 | 470 | Resistor_SMD:R_0402_1005Metric | R20, R21, R22, R23 |
| 4 | LED | LED_SMD:LED_0402_1005Metric | D1, D2, D3, D4 |
| 3 | 100 | Resistor_SMD:R_0402_1005Metric | R17, R18, R19 |
| 3 | 10u | Capacitor_SMD:C_0805_2012Metric | C2, C19, C21 |
| 3 | 51K | Resistor_SMD:R_0402_1005Metric | R11, R13, R14 |
| 3 | 5K1 | Resistor_SMD:R_0402_1005Metric | R5, R7, R12 |
| 2 | 10K | Resistor_SMD:R_0402_1005Metric | R10, R16 |
| 2 | 15p | Capacitor_SMD:C_0402_1005Metric | C15, C16 |
| 2 | 27 | Resistor_SMD:R_0402_1005Metric | R2, R3 |
| 2 | 4.7u | Capacitor_SMD:C_0402_1005Metric | C5, C20 |
| 2 | 4.7u | pico2parts:C_0402_1005Metric_small_pads | C1, C3 |
| 2 | 4u7 | Capacitor_SMD:C_0402_1005Metric | C6, C24 |
| 2 | EM6K6 | Package_TO_SOT_SMD:SOT-563 | Q1, Q2 |
| 2 | MountingHole | MountingHole:MountingHole_2.2mm_M2 | H1, H1 |
| 1 | 1K | Resistor_SMD:R_0402_1005Metric | R15 |
| 1 | 1k | Resistor_SMD:R_0402_1005Metric | R8 |
| 1 | 3.3u | pico2parts:IND-SMD_L2.0-W1.6_AOTA-B201610S3R3-101-T | L1 |
| 1 | 33 | Resistor_SMD:R_0402_1005Metric | R1 |
| 1 | 5.1k | Resistor_SMD:R_0402_1005Metric | R4 |
| 1 | ABM8-272-T3 | Crystal:Crystal_SMD_3225-4Pin_3.2x2.5mm | Y1 |
| 1 | AP2127K-3.3 | Package_TO_SOT_SMD:SOT-23-5 | U4 |
| 1 | JST_01x03 | Connector_JST:JST_SH_SM03B-SRSS-TB_1x03-1MP_P1.00mm_Horizontal | J1 |
| 1 | JST_01x04 | Connector_JST:JST_SH_SM04B-SRSS-TB_1x04-1MP_P1.00mm_Horizontal | J2 |
| 1 | RP2354A | pico2parts:RP2350-QFN-60-1EP_7x7_P0.4mm_EP3.4x3.4mm_ThermalVias | U2 |
| 1 | SW_Push | pico2parts:BUTTON-SW-SMD_2P-TS24CA | SW1 |
| 1 | ~ | pico2parts:TECH PUBLIC TP74AUP1T17C5 | U1 |
| 1 | ~ | pico2parts:USB-C-SMD_TYPE-C-31-G-10 | P1 |
The 69 most common of 70 parts.
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Questions
How big is the Pico2-expansion card PCB?
It measures 26 × 30.6 mm and has 4 copper layers, 0.8 mm thick.
What parts does the Pico2-expansion card use?
70 parts, built around the RP2354A and ABM8-272-T3. The full list of its parts is on this page, with links to each part's symbol and footprint where PCBKit's library has them.
Where can I download the Pico2-expansion card KiCad files?
From the riscfruit/FramePico2-Expansion-Card repository on GitHub, at the commit this page was made from: the board is pcb/pico2-expansion-card.kicad_pcb and its schematic pcb/pico2-expansion-card.kicad_sch. PCBKit opens the board in the browser, with nothing to install.
Can I use the Pico2-expansion card design in my own project?
Its repository publishes it under the CERN-OHL-S-2.0 licence: you may reuse it on that licence's terms (keep the author's notice, and for a copyleft licence share your changes alike).