TrafMaster
sensorable·g935-electronics·psu/g935f-psu.kicad_pcb
About the TrafMaster PCB
TrafMaster is an open source PCB design by sensorable, published on GitHub. It is a 2-layer board measuring 37 × 49.7 mm, with 52 components from 22 distinct parts.
Other key parts include the TPS54339. By type, the board carries 20 capacitors, 13 connectors, 9 resistors, 3 transistors, 3 inductors and 2 ICs.
From the project
Electronics for Sensorable Open Source Camera
Sensorable camera is a low power edge computer for smart applications with limited power and bandwidth. It is based on Samsung G935F smartphone board with auxiliary chassis and electronics.
Applications: outdoor security remote site monitoring beach / nature cams traffic monitoring vehicle counting ALPR / ANPR * speed control and monitoring
The camera can be assembled, programmed, tested and deployed by a sufficiently skilled technician.

Main components on the TrafMaster
TrafMaster bill of materials (BOM)
52 components, 22 distinct parts — part numbers from the project's BOM.
| Qty | Part | Footprint | Refs |
|---|---|---|---|
| 2 | TPS54339 | SOIC-8-1EP_3.9x4.9mm_Pitch1.27mm | U1, U2 |
| 1 | P_MOS_SOT23 | SOT-23 | Q1 |
| 2 | N_MOS_SOT23 | SOT-23 | Q2, Q3 |
| 1 | CONN_BASIC_10_PIN Conn_Basic_10_pin | CONN_5034801000_MOLEX_FFC_10pin | P1 |
| 4 | PAD | NPTH_2mm | P2, P3, P6, P7 |
| 2 | PAD | CONN_1_SPRING_TH_1.83x.6mm | P4, P5 |
| 1 | CONN_BASIC_2_PIN Conn_Basic_2_pin | TERM_BLK_2_SIDE_2.54MM | P8 |
| 1 | CONN_BASIC_5_PIN_0 Conn_Basic_5_pin_0 | CONN_RCPT_USB2_TYPEA_RA_TE | P9 |
| 2 | PAD | NPTH_1.5mm | P10, P11 |
| 2 | Conn_Basic_2_pin | CONN_2pin_just_holes_2.54mmPITCH_1mmBigSquareHOLES | P13, P14 |
| 1 | PTC FUSE | 1812 | F1 |
| 1 | Uni Zener 23V@17A | SMA | D1 |
| 3 | 3.3uH 4.2A 35m | IND_2_5x5mm | L1, L2, L3 |
| 8 | 10UF 10uF | 1206_Big-Pads | C1, C2, C6, C9, C10, C11, C15, C18 |
| 11 | .47uF | 0805_Medium_Pads | C3, C4, C5, C7, C8, C12, C13, C14 +3 |
| 1 | 100UF 100uF | CAP_SMD_CAN_6.6x6.6mm | C19 |
| 1 | 1M | 0805_Medium_Pads | R1 |
| 2 | 1k | 0805_Medium_Pads | R2, R4 |
| 1 | DNU | 0805_Medium_Pads | R3 |
| 2 | 22.6K 22.6k | 0805_Medium_Pads | R5, R10 |
Show 2 more
| Qty | Part | Footprint | Refs |
|---|---|---|---|
| 2 | 100K 100k | 0805_Medium_Pads | R6, R9 |
| 1 | 18K 18k | 0805_Medium_Pads | R8 |
TrafMaster design files
The KiCad project lives in the sensorable/g935-electronics repository on GitHub; these links point at the commit this page was built from.
TrafMaster: common questions
How big is the TrafMaster PCB?
The TrafMaster measures 37 × 49.7 mm, has 2 copper layers and is 1.6 mm thick.
How many components are on the TrafMaster?
52 components, from 22 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 TrafMaster design files?
From the sensorable/g935-electronics repository on GitHub, which has the KiCad layout and the BOM; the links under Design files point to each one.
Can I use the TrafMaster design in my own project?
The repository has no license, so all rights stay with sensorable. Use it as a reference, and ask the author before reusing the design.