2 layers99.1 × 99.1 mm
2 layers99.1 × 99.1 mm
Bus spy
ksmonkey123/8bit_computer1custom 8bit microprocessor project
- Size
- 99.1 × 99.1 mm
- Copper layers
- 2
- Thickness
- 1.6 mm
- Parts
- 92
- Nets
- 86
- Pads
- 270
- Tracks, vias
- 296, 28
- Pours
- 3
- Routed
- Yes
- KiCad
- KiCad 9.0 (file 20241229)
- Created
- 10 Dec 2024
- Updated
- 9 Sep 2026
Overview
Bus spy is an open-source printed circuit board by ksmonkey123, from the ksmonkey123/8bit_computer repository on GitHub, published under the MIT licence. It is a 2-layer board of 99.1 × 99.1 mm with 92 parts on 86 nets, routed with 296 tracks and 28 vias.
Its parts include 28 resistors, 28 diodes, 28 transistors, 1 capacitor and 1 switch.
Parts
92| Qty | Value | Footprint | References |
|---|---|---|---|
| 28 | 2N7002 | Package_TO_SOT_SMD:SOT-23 | Q1, Q2, Q10, Q11, Q12, Q13, Q14, Q15, Q16, Q17, Q18, Q19, Q20, Q21, Q22, Q23 +12 |
| 28 | LED | LED_SMD:LED_0603_1608Metric | D1, D2, D10, D11, D12, D13, D14, D15, D16, D17, D18, D19, D20, D21, D22, D23 +12 |
| 28 | R | Resistor_SMD:R_0603_1608Metric | R1, R2, R10, R11, R12, R13, R14, R15, R16, R17, R18, R19, R20, R21, R22, R23 +12 |
| 4 | MountingHole_Pad | MountingHole:MountingHole_3.2mm_M3_Pad_Via | H1, H2, H3, H4 |
| 2 | Conn_01x16 | Connector_IDC:IDC-Header_2x08_P2.54mm_Horizontal | ADDRESS_BUS1, DATA_BUS1 |
| 1 | C_Polarized | Capacitor_SMD:CP_Elec_5x5.3 | C1 |
| 1 | SW_Push | Button_Switch_THT:SW_PUSH_6mm | SW1 |
Questions
How big is the Bus spy PCB?
It measures 99.1 × 99.1 mm and has 2 copper layers, 1.6 mm thick.
What parts does the Bus spy use?
92 parts. 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 Bus spy KiCad files?
From the ksmonkey123/8bit_computer repository on GitHub, at the commit this page was made from: the board is circuits/pc-10_bus_spy/bus_spy.kicad_pcb and its schematic circuits/pc-01_dual_8bit_register/dual_8bit_register.kicad_sch. PCBKit opens the board in the browser, with nothing to install.
Can I use the Bus spy design in my own project?
Its repository publishes it under the MIT licence: you may reuse it on that licence's terms (keep the author's notice, and for a copyleft licence share your changes alike).
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