2 layers250 × 250 mm
RocSync testing
BAL-ORX/RocSync
Millisecond-Accurate Temporal Synchronization for Heterogeneous Camera Systems
336 parts3MPL-2.0
2 layers250 × 250 mm
RocSync testing
jaromeyer/RocSync13- Size
- 250 × 250 mm
- Copper layers
- 2
- Thickness
- 1.6 mm
- Parts
- 310
- Nets
- 307
- Pads
- 1,011
- Tracks, vias
- 1,503, 174
- Pours
- 3
- Routed
- Yes
- KiCad
- KiCad 8.0 (file 20240108)
- Created
- 9 Sep 2024
- Updated
- 5 Sep 2026
Overview
RocSync testing is an open-source printed circuit board by jaromeyer, from the jaromeyer/RocSync repository on GitHub, published under the MPL-2.0 licence. It is a 2-layer board of 250 × 250 mm with 310 parts on 307 nets, routed with 1,503 tracks and 174 vias.
It is built around the TLC59283DBQ, BCR420UW6Q and BQ24075RGT, with the TYPE-C 16PFS LTH6.8 IPX8 among its other parts. Its parts include 243 diodes, 21 resistors, 16 capacitors, 14 ICs and 3 connectors. It belongs with the RISC-V boards of this library.
Main components
4
TLC59283DBQ
SSOP-24-150mil-40℃~+85℃ 0V~10V 16 3% 35MHz 35mA、45mA 3V~5.5V Buck Built-in PWM SSOP-24-150mil LED Drivers ROHSTexas InstrumentsLED Drivers
BCR420UW6Q
SOT-26-55℃~+150℃ 1 10% 350mA 40V 40V Built-in Over-Temperature Protection (OTP) PWM SOT-26 LED Drivers ROHSDiodes IncorporatedLED Drivers
BQ24075RGT
QFN-16-EP(3x3)-40℃~+125℃ 1.5A 4.2V 4.35V~6.4V 6.5uA Charging IC Lithium Battery Not supported Support QFN-16-EP(3x3) Battery Management ROHSTexas InstrumentsBattery ManagementTYPE-C 16PFS LTH6.8 IPX8
SMD-30℃~+80℃ 1 10 thousand cycles 16P 20V 3A 6.8mm Black Female Surface Mount,Vertical Type-C USB 3.1 SMD USB Connectors ROHSSHOU HANUSB Connectors
README
hw/README.mdRocSync hardware
This folder contains the KiCad project for the RocSync device. It was designed with manufacturing and assembly by JLCPCB in mind. The following plugin was used to generate fabrication files for JLCPCB. The folder 3d_models contains the STEP and STL files for the cover and handle.
TODO
- Use TCXO for better accuracy (e.g., TX0283D)
- Decouple IR and visible LED brightness
- Fix decreasing brightness when battery voltage is low (e.g., by adding a buck-boost converter)
- Extend counter for longer recordings or displaying custom experiment identifier
- Add human readable display for convenience (e.g., OLED, 7-segment LED)
- Add 5th static IR-LED to make rotation unambiguous
Mechanical BOM
| Part | Quantity | Source |
|---|---|---|
| 604050 battery | 1 | Aliexpress |
| Handle | 1 | 3d printed |
| Cover | 1 | 3d printed |
| M3x10 screws | 4 | Aliexpress |
| M3 nuts | 4 | Aliexpress |
| matte smoked film ~32x32 cm | 1 | Aliexpress |
Parts
310| Qty | Value | Footprint | References |
|---|---|---|---|
| 120 | IR LED | custom_footprints:XYC-HIR76C-LX4 | D101, D102, D103, D104, D105, D106, D107, D108, D109, D110, D111, D112, D113, D114, D115, D116 +104 |
| 120 | LED | custom_footprints:HL-A-3528 | D1, D2, D10, D11, D12, D13, D14, D15, D16, D17, D18, D19, D20, D100, D201, D202 +104 |
| 11 | 0.1uf | Capacitor_SMD:C_0402_1005Metric | C4, C7, C8, C9, C10, C11, C12, C13, C14, C15, C18 |
| 8 | 2.7k | Resistor_SMD:R_0603_1608Metric | R7, R8, R9, R10, R11, R12, R13, R14 |
| 8 | TLC59283 | Package_DFN_QFN:Texas_RGE0024C_VQFN-24-1EP_4x4mm_P0.5mm_EP2.1x2.1mm_ThermalVias | U3, U4, U5, U6, U7, U8, U9, U10 |
| 4 | 100 | Resistor_SMD:R_0402_1005Metric | R15, R16, R17, R18 |
| 4 | BCR420UW6Q | Package_TO_SOT_SMD:SOT-23-6 | U11, U12, U13, U14 |
| 4 | MountingHole | MountingHole:MountingHole_3.2mm_M3 | H1, H2, H3, H4 |
| 3 | 1.5k | Resistor_SMD:R_0402_1005Metric | R5, R6, R19 |
| 2 | 1.18k | Resistor_SMD:R_0402_1005Metric | R22, R23 |
| 2 | 10pf | Capacitor_SMD:C_0402_1005Metric | C5, C6 |
| 2 | 4.7uf | Capacitor_SMD:C_0402_1005Metric | C2, C3 |
| 2 | 5.1k | Resistor_SMD:R_0402_1005Metric | R1, R2 |
| 2 | LOGO | custom_footprints:orx | G***, G*** |
| 1 | 10k | Resistor_SMD:R_0402_1005Metric | R4 |
| 1 | 1uf | Capacitor_SMD:C_0402_1005Metric | C1 |
| 1 | 2k | Resistor_SMD:R_0402_1005Metric | R3 |
| 1 | BATT | Connector_JST:JST_PH_B2B-PH-K_1x02_P2.00mm_Vertical | J2 |
| 1 | BQ24075RGT | Package_DFN_QFN:VQFN-16-1EP_3x3mm_P0.5mm_EP1.68x1.68mm_ThermalVias | U1 |
| 1 | CH32V003FxUx | Package_DFN_QFN:QFN-20-1EP_3x3mm_P0.4mm_EP1.65x1.65mm_ThermalVias | U2 |
| 1 | CHG | LED_SMD:LED_0603_1608Metric | D242 |
| 1 | CHG BOOST | Jumper:SolderJumper-2_P1.3mm_Open_RoundedPad1.0x1.5mm | JP1 |
| 1 | Crystal_GND24 | Crystal:Crystal_SMD_2520-4Pin_2.5x2.0mm | Y1 |
| 1 | LOGO | LOGO | G*** |
| 1 | MODE | LED_SMD:LED_0603_1608Metric | D243 |
| 1 | MODE | Button_Switch_SMD:SW_Push_1P1T_NO_6x6mm_H9.5mm | SW3 |
| 1 | ON/OFF | Button_Switch_THT:SW_CK_JS202011CQN_DPDT_Straight | SW1 |
| 1 | PROG | Connector_PinHeader_2.54mm:PinHeader_1x03_P2.54mm_Vertical | J3 |
| 1 | PWR | LED_SMD:LED_0603_1608Metric | D241 |
| 1 | RESET | Button_Switch_SMD:SW_Push_1P1T_NO_6x6mm_H9.5mm | SW2 |
| 1 | USB_C_Receptacle_PowerOnly_6P | Connector_USB:USB_C_Receptacle_GCT_USB4115-03-C | J1 |
The 309 most common of 310 parts.
Questions
How big is the RocSync testing PCB?
It measures 250 × 250 mm and has 2 copper layers, 1.6 mm thick.
What parts does the RocSync testing use?
310 parts, built around the TLC59283DBQ, BCR420UW6Q, BQ24075RGT and TYPE-C 16PFS LTH6.8 IPX8. The full list of its parts is on this page, with links to each part's symbol and footprint where PCBKit's library has them.
Where can I download the RocSync testing KiCad files?
From the jaromeyer/RocSync repository on GitHub, at the commit this page was made from: the board is hw/RocSync_testing.kicad_pcb and its schematic hw/4leds.kicad_sch. PCBKit opens the board in the browser, with nothing to install.
Can I use the RocSync testing design in my own project?
Its repository publishes it under the MPL-2.0 licence: you may reuse it on that licence's terms (keep the author's notice, and for a copyleft licence share your changes alike).
Similar boards
- 2 layers14 × 1 mm
Vectorscope
shabaz123/Vectorscope_GuyFawkes
A reimplementation of the Vectorscope from https://github.com/Hack-a-Day/Vectorscope
81 parts3GPL-3.0 - 4 layers256 × 32 mm
Ledmat8x16tiledriver blade
burbschat/ledmat8x16
LTP-12188M-08 Based Two Color 8x16 LEDs in 8x8 Slots LED Matrix Display Module
136 parts1CERN-OHL-S-2.0 - 2 layers105 × 85 mm
Soundboard
chill389cc/Soundboard
Code and schematics for a macropad soundboard system for the office bullpen
53 parts - 4 layers256.9 × 96.2 mm
- 4 layers120 × 75 mm
Portapack h1
portapack-mayhem/mayhem-firmware
The firmware for the HackRF+PortaPack H1/H2/H4/H4M
111 parts5.5kGPL-3.0 - 4 layers45 × 32 mm
Templog mainboard
Michael-Manning/E-Paper-Climate-Logger
Firmware, PCB, and enclosure for the Weathergotchi E-Paper climate logger.
68 parts457MIT - 2 layers225.5 × 185.2 mm
Levels
Good-Great-Grand-Wonderful/levels54
Levels54 is for people who care about how things are made and how they feel. Every component—from ceramic trackball bearings to stainless switch plates—is chosen to deliver smooth, precise, durable performance.
243 parts67MIT