FPC Trigger Board
HandHeldLegend·GC-Ultimate·HW/Projects/Trigger Hall FPC/FPC_Trigger_Board.kicad_pcb
About the FPC Trigger Board
FPC Trigger Board is an open source PCB design by HandHeldLegend, published on GitHub under the CC-BY-NC-4.0 license. It is a 2-layer board measuring 56.3 × 36.5 mm, with 4 components from 2 distinct parts.
Other key parts include the HAL4395SO5. By type, the board carries 2 ICs and 2 capacitors.
From the project
Resources Cross-Referenced for component placement and other spacing detail: - 3D Scans by Wesk - GCC CAD Model by GearHawk - PhobGCC PCB - 3D models for the ergonomic trigger reference were provided with full permission from YaBoiMikey

Main components on the FPC Trigger Board
FPC Trigger Board bill of materials (BOM)
4 components, 2 distinct parts — part numbers from the project's BOM.
| Qty | Part | Footprint | Refs |
|---|---|---|---|
| 2 | HAL4395SO5 HAL4395 Hallwee | SOT-23-5L | U1, U2 |
| 2 | GRM033R61A104KE15D 100n muRata | C_0201_0603Metric | C1, C2 |
FPC Trigger Board design files
The KiCad project lives in the HandHeldLegend/GC-Ultimate repository on GitHub; these links point at the commit this page was built from.
FPC Trigger Board: common questions
How big is the FPC Trigger Board?
The FPC Trigger Board measures 56.3 × 36.5 mm, has 2 copper layers and is 0.3 mm thick.
How many components are on the FPC Trigger Board?
4 components, from 2 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 FPC Trigger Board design files?
From the HandHeldLegend/GC-Ultimate 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 FPC Trigger Board 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.