2 layers57 × 65 mm
Pitubedirect hat dip
hoglet67/PiTubeDirect
Bare-metal Raspberry Pi project that attaches to the Acorn TUBE interface and emulates many BBC Micro Co Processors
13 parts207GPL-3.0
2 layers57 × 65 mm
Pitubedirect hat dip
hoglet67/PiTubeDirect207Bare-metal Raspberry Pi project that attaches to the Acorn TUBE interface and emulates many BBC Micro Co Processors
- Size
- 57 × 65 mm
- Copper layers
- 2
- Thickness
- 1.6 mm
- Parts
- 33
- Nets
- 66
- Pads
- 176
- Tracks, vias
- 219, 24
- Pours
- 3
- Routed
- Yes
- KiCad
- KiCad 4
- Created
- 3 May 2016
- Updated
- 29 Jul 2026
Overview
Pitubedirect hat dip is an open-source printed circuit board by hoglet67, from the hoglet67/PiTubeDirect repository on GitHub, published under the GPL-3.0 licence. It is a 2-layer board of 57 × 65 mm with 33 parts on 66 nets, routed with 219 tracks and 24 vias.
Its parts include 14 resistors, 9 capacitors, 4 connectors and 2 ICs. It belongs with the interfaces and adapters boards of this library.
README
README.mdPiTubeDirect
PiTubeDirect is a low cost Second Processor project for Acorn's 8-bit machines (Beeb, Master, Electron, Atom) which uses two cheap chips to interface a Raspberry Pi to the Tube connector.
The Pi emulates one of a number of CPUs, and also the Tube interface chip.
A Pi Zero can emulate a 6502 Second Processor running at 274MHz.
For more information, see the project Wiki.
Here's the minimal configuration, using a Pi Zero and a DIY two-chip level shifter:
Benchmark results for the 65C02 Second Processor:
Parts
33| Qty | Value | Footprint | References |
|---|---|---|---|
| 8 | 100 | Discret:R4 | R2, R3, R4, R5, R6, R7, R8, R9 |
| 6 | 470 | Discret:R4 | R1, R10, R11, R12, R13, R14 |
| 5 | 15p | Capacitors_ThroughHole:C_Rect_L7_W2_P5 | C5, C6, C7, C8, C9 |
| 2 | 100n | Capacitors_ThroughHole:C_Rect_L7_W2_P5 | C1, C2 |
| 2 | 74LVC245AN | Housings_DIP:DIP-20_W7.62mm | U1, U2 |
| 2 | CONN_01X03 | Pin_Headers:Pin_Header_Straight_1x03 | P3, P4 |
| 1 | 22u | Discret:C1V8 | C3 |
| 1 | 4n7 | Capacitors_ThroughHole:C_Rect_L7_W2_P5 | C4 |
| 1 | CONN_02X20 | Socket_Strips:Socket_Strip_Angled_2x20 | P1 |
| 1 | CONN_02X20 | Socket_Strips:Socket_Strip_Straight_2x20 | P2 |
The 29 most common of 33 parts.
More from hoglet67/PiTubeDirect
1Similar boards
- 2 layers65 × 30 mm
Rgb to hdmi
hoglet67/RGBtoHDMI
Bare-metal Raspberry Pi project that provides pixel-perfect sampling of Retro Computer RGB/YUV video and conversion to HDMI
33 parts1kGPL-3.0 - 2 layers127 × 96 mm
Amiga gfxcard
mntmn/amiga2000-gfxcard
MNT VA2000, an Open Source Amiga 2/3/4000 Graphics Card (Zorro II/III), written in Verilog
33 parts1k - 2 layers92.7 × 58.4 mm
Hacky holidays
hackclub/OnBoard
💡 Join 1,000 teenagers and make your first PCB with a $100 grant!
33 parts915 - 2 layers240 × 120 mm
Quiver PDB 01
Arrow-air/project-quiver
Project Quiver documentation, designs, and project artifacts.
33 parts617CERN-OHL-S-2.0 - 2 layers75 × 26 mm
DIY detector
ozel/DIY_particle_detector
A mobile low-cost spectrometer for measuring radioactivity and the energy of ionising radiation like alpha particles and electrons
33 parts558BSD-2-Clause - 2 layers100 × 50 mm
Pixelix
BlueAndi/Pixelix
Full RGB LED matrix, based on an ESP32 and WS2812B LEDs or emulated LEDs on TFT.
33 parts447MIT - 2 layers99.1 × 71.1 mm
CONTROLLER Standby Instrument
jrsteensen/OpenHornet
OpenHornet 1:1 F/A-18C Simulator Repository
33 parts431 - 2 layers65 × 30 mm
Questions
How big is the Pitubedirect hat dip PCB?
It measures 57 × 65 mm and has 2 copper layers, 1.6 mm thick.
What parts does the Pitubedirect hat dip use?
33 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 Pitubedirect hat dip KiCad files?
From the hoglet67/PiTubeDirect repository on GitHub, at the commit this page was made from: the board is kicad/v1/pitubedirect-hat-dip.kicad_pcb. PCBKit opens the board in the browser, with nothing to install.
Can I use the Pitubedirect hat dip design in my own project?
Its repository publishes it under the GPL-3.0 licence: you may reuse it on that licence's terms (keep the author's notice, and for a copyleft licence share your changes alike).