Pi1551-HAT
About the Pi1551-HAT
Pi1551-HAT is an open source PCB design by ytmytm, published on GitHub. It is a 2-layer board measuring 65 × 56.5 mm, with 28 components from 5 distinct parts.
By type, the board carries 23 resistors, 4 transistors and 1 diode.
It belongs with the retro computing, dev boards & breakouts and displays & leds designs in this gallery.
From the project
A RaspberryPI HAT for Pi1551 project
A minimalistic HAT for Raspberry Pi 3A/3B/3B+ that gives you low-cost 1551 floppy emulation (and optionally TAP tape playback) for Commodore C16/C116 or Plus/4. You build only what you need: the core is a few parts; display, controls, and TAP support are optional add-ons.
Warning: For tcbm2sd ONLY. Do not connect this HAT to a real 1551 drive. The circuit is not 5V-tolerant and can damage the Raspberry Pi.
Pi1551-HAT bill of materials (BOM)
28 components, 5 distinct parts — part numbers from the project's BOM.
| Qty | Part | Footprint | Refs |
|---|---|---|---|
| 4 | C18536 MMBT3904 | SOT-23_Handsoldering | Q1, Q2, Q3, Q4 |
| 1 | BAT54 | D_SOD-123 | D2 |
| 1 | 220 | R_0805_2012Metric_Pad1.20x1.40mm_HandSolder | R1 |
| 9 | 10K 10k | R_0805_2012Metric_Pad1.20x1.40mm_HandSolder | R2, R3, R4, R5, R6, R7, R8, R9 +1 |
| 13 | 10k | R_0805_2012Metric_Pad1.20x1.40mm_HandSolder | R11, R12, R13, R14, R15, R16, R17, R18 +5 |
Pi1551-HAT design files
The KiCad project lives in the ytmytm/Pi1551-HAT repository on GitHub; these links point at the commit this page was built from.
Pi1551-HAT: common questions
How big is the Pi1551-HAT?
The Pi1551-HAT measures 65 × 56.5 mm, has 2 copper layers and is 1.6 mm thick.
How many components are on the Pi1551-HAT?
28 components, from 5 distinct parts, with part numbers taken from the project's own BOM. The full bill of materials is listed on this page.
Where can I download the Pi1551-HAT design files?
From the ytmytm/Pi1551-HAT repository on GitHub, which has the KiCad layout, the schematic and the BOM; the links under Design files point to each one.
Can I use the Pi1551-HAT design in my own project?
The repository has no license, so all rights stay with ytmytm. Use it as a reference, and ask the author before reusing the design.
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