Gloworm
About the Gloworm PCB
Gloworm is an open source PCB design by Pigmice2733, published on GitHub under the CC-BY-NC-4.0 license. It is a 2-layer board measuring 65 × 56 mm, with 28 components from 19 distinct parts.
Other key parts include the TPS61165 and LMR33630. By type, the board carries 11 capacitors, 6 diodes, 4 resistors, 2 ICs, 2 connectors and 2 inductors.
From the project
Original Gloworm design for an RPi 4
A Raspberry Pi vision tracking module for FRC.
Powered directly off the PDP (built-in Raspberry Pi PSU) Cheap, utilizing off the shelf parts and a 3D printed case (~$120 including RPi 4, camera, PCB, fasteners) Fully dimmable ~500 lumen output (6x Cree XP-E2 Green LEDs) Compact design (100mm x 74mm x 25mm)
Main components on the Gloworm
Gloworm bill of materials (BOM)
28 components, 19 distinct parts.
| Qty | Part | Footprint | Refs |
|---|---|---|---|
| 1 | TPS61165 | SOT-23-6 | U1 |
| 1 | LMR33630 | Texas_HSOP-8-1EP_3.9x4.9mm_P1.27mm_ThermalVias | U2 |
| 1 | GPIO | PinSocket_2x20_P2.54mm_Vertical | J1 |
| 1 | Power | TE_282837-2 | J2 |
| 1 | D_Schottky | D_SOD-123 | DS1 |
| 6 | LED_PAD | LED_Cree-XP | D1, D2, D3, D4, D5, D6 |
| 1 | 10uH | IND_#A915AY-100M=P3 | L1 |
| 1 | 8.2uH | L_Vishay_IHLP-2525 | L2 |
| 1 | 4.7uF | C_0805_2012Metric | C1 |
| 1 | 220nF | C_0805_2012Metric | C2 |
| 2 | 1uF | C_0603_1608Metric | C3, C6 |
| 1 | 10uF | C_1210_3225Metric | C4 |
| 1 | 220nF | C_0603_1608Metric | C5 |
| 1 | 0.1uF | C_0603_1608Metric | C7 |
| 4 | 22uF | C_1210_3225Metric | C8, C9, C10, C11 |
| 1 | 0.56Ω | R_0805_2012Metric | R1 |
| 1 | 100k | R_0603_1608Metric | R2 |
| 1 | 24.9k | R_0603_1608Metric | R3 |
| 1 | 47k | R_0805_2012Metric | R4 |
Gloworm design files
The KiCad project lives in the Pigmice2733/gloworm repository on GitHub; these links point at the commit this page was built from.
Gloworm: common questions
How big is the Gloworm PCB?
The Gloworm measures 65 × 56 mm, has 2 copper layers and is 1.6 mm thick.
How many components are on the Gloworm?
28 components, from 19 distinct parts. The full bill of materials is listed on this page.
Where can I download the Gloworm design files?
From the Pigmice2733/gloworm repository on GitHub, which has the KiCad layout; the links under Design files point to each one.
Can I use the Gloworm design in my own project?
It is published under CC-BY-NC-4.0, which limits how it may be reused; read the license before building on it.