This repository holds all hardware design and fabrication files
PiStorm32-lite is compatible with
-
PI3A
-
PI3B
-
PI4B
-
PiZero2 (could be very tight around the HDMI connector...)
-
Raspberry CM4 (Recommended Version : CM4 Lite, 2GB RAM with WIFI and no eMMC) trough a adapter https://github.com/PiStorm/cm4board
The custom designed CM4 Adapter will offer the best cooling and electrical properties in the constrained space available.
- Schematics (and assembly drawing)
- Altium project
- Fabrication files
- Fabrication files for JLCPCB Assembly (With small ordering Howto)
The community around the PiStorm Project is best reached on Discord
IMPORTANT NOTE:
Isolate the PI GPIO and Ethernet Pins from the A1200 Keyboard, that can be done by 2 or 3 layers of tape attached to the keyboard backside where the Pi pins would touch the metalIf you don't do that, you likely fry your Pi ! Sorry couldn't design it an other way, there is not much space in the A1200 trapdoor bay
Beside the PCB you also need following parts:
| Designator | Part | Quantity | Notes |
|---|---|---|---|
| C1 to C16, C23, C24 | 100nF 0603 | 18 | X7R |
| C17, C18, C19, C20, C21, C22 | Tantalum 10uF 16V Size B | 6 | -- |
| D1 | BAT54C | 1 | -- |
| EXT | 2.54mm Pin Header 2x5 10 Pins | 1 | Expansion header for the future :) e.g. B-2100S10P-B110 |
| M1,M2,M3 | SMD M2.5 NUT | 3 | e.g. Sinhoo SMTSO2515CTJ |
| LED_1.2, LED_3.3, LED_FPGA, LED_PI | RED LED 0805 | 4 | Indicate not Illuminate! |
| PI | SMD 40Pin 2x20 - bottom entry | 1 | e.g. Liansheng FH-00369 |
| CN1 | A1200 Edge connector | 1 | see links and notes |
| Q1 | IRML6401 | 1 | -- |
| Q2, Q3, Q4, Q5, Q6 | BC847B | 5 | -- |
| R2, R4, R5, R6, R7, R8, R9, R10, R19 | Resistor 0603 10kOhm | 9 | -- |
| R3, R13, R16, R17, R18 | Resistor 0603 1kOhm | 5 | -- |
| RN1, RN2, RN3, RN4, RN5, RN6, RN7, RN8, RN9 | Resistor Array 0603x4 10kOhm | 9 | e.g. YAGEO YC164-JR |
| RN10 | Resistor Array 0603x4 1kOhm | 1 | e.g. YAGEO YC164-JR |
| U1 | FPGA Efinix Trion T8Q144C4 (or C3) | 1 | see links and notes |
| U2, U3, U4, U5, U6, U7 | 74CBTD3384 TSSOP-24 | 6 | TI or NXP |
| U8, U9, U10, U11 | 74LVC573A TSSOP-20 | 4 | TI or NXP |
| U12 | AMS1117-3.3 3.3V LDO | 1 | -- |
| U13 | AMS1117-3 1.2 1.2V LDO | 1 | -- |
Note: A1200 Edge Connectors can be purchased at retroready.one(UK based, highly recommended) or amigastore.eu(EU based) or Sordan(Ireland/EU based)
Note: JLCPCB does not stock the Efinix FPGA, but can source that part trough their global parts sourcing service. If you want to assemble the PCB by yourself, or order a partially assembeld PCB without the FPGA then here is a link to Digikey Digikey FPGA
For mechanical assembly you need :
- 3 M2.5 Screws with 8mm thread length (M2.5x8)
- 3 Spacers ID=2.6mm Length=3.0mm
- 1 Thermal Pad with 1mm thickness, just needs to be big enough to cover the PI CPU
There are also some pictures here how to attach the thermal pad and screws
If you like this project and want to support me (Claude Schwarz, PiStorm Hardware) with a donation, I finally setup a donate button :)
The donations will go into further development of open source PiStorm hardware.
