4 layers10 × 25 mm
4 layers90 × 80 mm
Readout
Luk9091/B-Probe- Size
- 90 × 80 mm
- Copper layers
- 4
- Thickness
- 1.6 mm
- Parts
- 142
- Nets
- 117
- Pads
- 470
- Tracks, vias
- 773, 214
- Pours
- 24
- Routed
- Yes
- KiCad
- KiCad 10.0 (file 20260206)
- Created
- 31 Oct 2026
- Updated
- 5 Nov 2026
Overview
Readout is an open-source printed circuit board by Luk9091, from the Luk9091/B-Probe repository on GitHub. It is a 4-layer board of 90 × 80 mm with 142 parts on 117 nets, routed with 773 tracks and 214 vias.
It is built around the AP22653QW6. Its parts include 60 resistors, 25 capacitors, 25 diodes, 13 ICs and 13 connectors. It belongs with the RP2040 boards of this library.
Main components
1Parts
142| Qty | Value | Footprint | References |
|---|---|---|---|
| 25 | 1u | Capacitor_SMD:C_0402_1005Metric | C1, C2, C10, C11, C12, C13, C14, C15, C16, C17, C18, C19, C20, C21, C22, C23 +9 |
| 24 | 8.6k | Resistor_SMD:R_0402_1005Metric | R1, R2, R11, R12, R16, R17, R21, R22, R26, R27, R31, R32, R36, R37, R41, R42 +8 |
| 13 | Conn_01x04 | Connector_Molex:Molex_KK-254_AE-6410-04A_1x04_P2.54mm_Vertical | J1, J2, J3, J4, J5, J6, J7, J8, J9, J10, J11, J12, J13 |
| 12 | 10k | Resistor_SMD:R_0402_1005Metric | R3, R8, R13, R18, R23, R28, R33, R38, R43, R48, R53, R58 |
| 12 | 33k | Resistor_SMD:R_0402_1005Metric | R5, R10, R15, R20, R25, R30, R35, R40, R45, R50, R55, R60 |
| 12 | 82k | Resistor_SMD:R_0402_1005Metric | R4, R9, R14, R19, R24, R29, R34, R39, R44, R49, R54, R59 |
| 12 | AP22653QW6 | Package_TO_SOT_SMD:SOT-23-6 | U1, U3, U4, U5, U6, U7, U8, U9, U10, U11, U12, U13 |
| 12 | FAULT LED | LED_SMD:LED_0402_1005Metric | D1, D3, D5, D7, D9, D11, D13, D15, D17, D19, D21, D23 |
| 12 | POWER LED | LED_SMD:LED_0402_1005Metric | D2, D4, D6, D8, D10, D12, D14, D16, D18, D20, D22, D24 |
| 4 | MountingHole_Pad | MountingHole:MountingHole_3.2mm_M3_Pad | H1, H2, H3, H4 |
| 1 | MCP23017x-x-SO | Package_SO:SOIC-28W_7.5x17.9mm_P1.27mm | U2 |
| 1 | NSR20F30NXT5G | Diode_SMD:D_0603_1608Metric | D25 |
| 1 | RaspberryPi_Pico | Module:RaspberryPi_Pico_SMD_HandSolder | A1 |
| 1 | SW_Push | Button_Switch_SMD:SW_SPST_TL3305B | SW1 |
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142 parts15
Questions
How big is the Readout PCB?
It measures 90 × 80 mm and has 4 copper layers, 1.6 mm thick.
What parts does the Readout use?
142 parts, built around the AP22653QW6. 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 Readout KiCad files?
From the Luk9091/B-Probe repository on GitHub, at the commit this page was made from: the board is Schematic_readout/readout.kicad_pcb and its schematic Schematic_probe/B-Probe.kicad_sch. PCBKit opens the board in the browser, with nothing to install.
Can I use the Readout design in my own project?
Its repository states no licence, so its author keeps all rights: ask Luk9091 before reusing the design.