PiTrac DIY Parts List

This document provides a comprehensive list of all components needed to build a PiTrac launch monitor.

📋 Before ordering parts, check the Roadmap to understand which version you should build and any recent updates to hardware requirements.

Computing Hardware

Quantity Hardware Purpose
1 Raspberry Pi 5 and power supply, 4 GB minimum, 8 GB recommended Getting a bundled kit with the Pi and power supply can be economical if you do not have Pi-related components yet
1 [DEPRECATED] Raspberry Pi 4 Model B The current version of PiTrac requires only a single Pi 5. The “Single-Pi” version is relatively new but appears to be working well
1 Pimoroni NVMe Base for Raspberry Pi 5 – PIM699 (optional, but recommended) Allows use of NVMe memory drive instead of MicroSD card. Alternative: Geekworm M901
1 NVMe SSD drive (optional, but recommended) M.2 M key edge connector, 2230/2242 form factors. Recommend at least 256 GB capacity
2 MicroSD cards (64 GB recommended) To bootstrap the Pis
1 Active cooler fan for Pi 5 (optional) Recommended if doing large compiles on the Pi

Camera and Lighting Hardware

Quantity Hardware Purpose
2 Raspberry Pi Global Shutter Camera – CS Lens Mount OR Innomaker GS Camera Module with IMX296 Mono Sensor Innomaker is easier to work with (no soldering required). Pi cameras do not include lenses
1 Pi 5 FPC Camera Cable – 22-pin 0.5 mm to 15-pin 1 mm – 300 mm Conversion cable for Pi 5’s smaller CSI ports
1 200 mm Flex Cable for Pi 4 May come with cameras
2 6 mm 3 MP Wide Angle Lens For Pi GS cameras (which come without lenses)
1 1″ × 1″ IR Longpass Filter (1.5 mm thickness) Blocks visible light below ~730 nm. Important: Must allow 730 nm IR light through
1 60°/120° LED Lens – 44 mm + Reflector Focuses the infrared light. Consider getting both 60° and 120° lenses
1 100 W COB IR LED Chip – 730 nm Must be 730 nm for proper IR strobe operation
1 USB COB LED Strip Lights – 6.56 ft For lighting the teed-up ball. Must produce no infrared light

Power Components

Quantity Hardware Purpose
1 LED Driver 18–39 V 3000 mA 120 W (RECOMMENDED) OR 12–26 V 3600 mA Driver Driver for LED strobe array
1 5 V USB-B power supply with micro-USB connector For Connector Board – provides isolated power plane
1 Power strip (10″ or less) Compact enough to fit in enclosure, with power filtering

Hardware - Bolts and Nuts

Base Enclosure Hardware

Quantity Hardware Purpose
4 M4 × 12 mm screws LED power supply hold-downs
4 M2.5 × 12 mm bolts + nuts Pi board bolt-down
4 M2.5 × 10 mm bolts (3) + M2.5 × 12 mm (1) Pi board bolt-down
8 M2.5 × 16 mm bolts + nuts Pi camera attachment bolts
6 M4 × 12 mm bolts + nuts Pi camera gimbal attachment
2 M5 × 12 mm bolts + nuts Pi camera swivel mount
6 M3 × 16 mm bolts + nuts Horizontal center-side body attachment
18 M3 × 10 mm self-tapping screws Floor hold-down screws
8 M3 × 8 mm screws LED and lens hold-down screws

Version 2 Enclosure Hardware (Work in Progress)

Quantity Hardware Purpose
2 M3 × 8 mm self-tapping screws AC power inlet plug
2 M3 × 8 mm self-tapping screws Base box end-cap
12 M2 × 6 mm self-tapping screws Tower back/front plate alignment
4 M4 × 12 mm self-tapping screws Tower feet to base box
6–12 M2.5 × 8 mm self-tapping screws Compute board to backplane

Hardware Note: Stainless steel screws are stronger than black carbon steel and recommended, especially with PLA material. See stainless steel assortment kit for bulk purchasing.

Connector Board Components

Qty Reference Value Description Notes
1 J3 ~ USB B Micro Female Pinboard Includes pin headers
2 R1, R4 330 Ω Resistor Assortment kit
2 R2, R3 270 Ω Resistor Axial DIN0207
1 Sys1_Conn1 ~ 4-pin header 2.54 mm vertical
1 Sys2_Conn1 ~ 3-pin header 2.54 mm vertical
2 U2, U3 H11L1 Optocoupler Must be DIP-6 style, not surface mount
1 U4 74HC04 Hex inverter DIP-14 with socket
1 U5 ~ Dual MOS Driver Module For LED switching

Optional Connector Board Parts

Qty Item Purpose
2 6-pin DIP socket For optocouplers (assortment kit)
1 14-pin DIP socket For hex inverter
1 M2.5 bolt + nut USB connector mechanical securing

Miscellaneous Parts

Quantity Hardware Purpose / Notes
2 Power plugs Easy connect/disconnects
N/A 3-pin and 4-pin ribbon cables GPIO to Connector Board wiring
1 15.5 cm × 24 cm plexiglass window Must not block IR! Protects cameras from ball strikes

Version 2 Additional Components (Work in Progress)

Quantity Hardware Purpose
1 AC Power Inlet C14 with Fuse For base box power input
1 Mean Well LRS-150-24 PSU 150 W switching power supply (24 V 6.5 A)
5 Ring wire connectors PSU wire connections

Important Notes:

  • IR filter must allow 730nm light through (not 850nm filters)
  • LED strip must produce NO infrared light
  • Verify all IR components are compatible with 730nm wavelength
  • Check Roadmap before ordering to ensure you’re building the right version