4 layers40 × 40 mm
Enc encoder
ROAR-QUTRC/perseus-v3
The code base for the QUT Robotics Club ROAR teams rover Perseus starting 2026
87 parts10
2 layers52 × 51 mm
Grandpa 2.0
samueljcurtis111/Traffic_Controller_PCBA custom printed circuit board designed in KiCad 10 for robust, low-latency traffic control and external hardware management.
- Size
- 52 × 51 mm
- Copper layers
- 2
- Thickness
- 1.6 mm
- Parts
- 67
- Nets
- 71
- Pads
- 284
- Tracks, vias
- 198, 40
- Pours
- 8
- Routed
- Yes
- KiCad
- KiCad 10.0 (file 20260206)
- Created
- 8 Jul 2026
- Updated
- 8 Jul 2026
Overview
Grandpa 2.0 is an open-source printed circuit board by samueljcurtis111, from the samueljcurtis111/Traffic_Controller_PCB repository on GitHub. It is a 2-layer board of 52 × 51 mm with 67 parts on 71 nets, routed with 198 tracks and 40 vias.
It is built around the W25Q128JVSIQ, ABM8-272-T3 and SM03B-SRSS-TB. Its parts include 24 resistors, 19 capacitors, 8 connectors, 3 ICs and 2 switches. It belongs with the RP2350 boards of this library.
Main components
3
W25Q128JVSIQ
SOIC-8-208mil-40℃~+85℃ 100,000 cycles 120ms@(32KB) 128Mbit 133MHz 1uA 2.7V~3.6V 20 Years 3ms Power-on reset、Hardware write protection、Software write protection、Write enable latch、Absolute write protection SPI SOIC-8-208mil NOR FLASH ROHSWinbondNOR FLASH
ABM8-272-T3
SMD3225-4P-40℃~+85℃ 10pF 12MHz 50Ω SMD crystal oscillator ±30ppm ±30ppm SMD3225-4P Crystals ROHSAbraconCrystals
SM03B-SRSS-TB
Header SR 1.0 SMT side entry, 1mm pitchJSTUncategorised
README
README.mdTraffic Controller PCB (Grandpa 2.0)
A custom printed circuit board designed in KiCad 10 for robust, low-latency traffic control and external hardware management. Driven by the Raspberry Pi RP2350 microcontroller, this board is built to safely and reliably bridge the gap between high-performance logic and real-world electromechanical hardware.
Overview
This repository contains the full schematic, PCB layout, and custom component libraries for the "Grandpa 2.0" iteration of the Traffic Controller. Whether routing logic or switching external track components, the hardware is laid out to prioritize mechanical strength and signal integrity.
Hardware Features
- Microcontroller: Raspberry Pi RP2350 (QFN-60 package) for fast, reliable processing.
- Robust I/O Breakouts: GPIO lines are routed directly to heavy-duty screw terminals to safely drive external hardware, motors, or relays without relying on fragile pin headers.
- Integrated Controls: Surface-mount SPDT slide switches (PCM12 standard). The mechanical shield tabs are grounded to provide maximum physical durability against lateral force and to act as ESD protection.
- Custom Libraries: Includes custom schematic symbols and 3D step models (
RP2350_QFN60.step) specifically mapped and aligned for this board layout.
Repository Structure
| File / Folder | Description |
|---|---|
grandpa_2.0.kicad_pro | The main KiCad project file. Open this to launch the project. |
grandpa_2.0.kicad_sch | The core schematic wiring diagram. |
grandpa_2.0.kicad_pcb | The physical 2D/3D board layout and copper traces. |
grandpa_2.0.pretty/ | The local folder containing project-specific custom physical footprints. |
*.kicad_sym | Custom schematic symbols (including the RP2350 logic block). |
Getting Started
- Clone this repository to your local machine:
bash git clone [https://github.com/samueljcurtis111/Traffic_Controller_PCB.git](https://github.com/samueljcurtis111/Traffic_Controller_PCB.git)
Parts
67| Qty | Value | Footprint | References |
|---|---|---|---|
| 13 | 330 | PCM_SparkFun-Resistor:R_0603_1608Metric | R3, R14, R15, R16, R17, R18, R19, R20, R21, R22, R23, R24, R25 |
| 10 | 100n | Capacitor_SMD:C_0402_1005Metric | C2, C8, C11, C12, C13, C14, C15, C16, C17, C18 |
| 4 | Conn_01x04 | TerminalBlock_Phoenix:TerminalBlock_Phoenix_PT-1,5-4-3.5-H_1x04_P3.50mm_Horizontal | J5, J6, J7, J8 |
| 4 | MountingHole | MountingHole:MountingHole_2.7mm_M2.5 | H1, H2, H3, H4 |
| 4 | MountingHole_Pad | MountingHole:MountingHole_3.2mm_M3_Pad_Via | H5, H6, H7, H8 |
| 3 | 10u | Capacitor_SMD:C_0805_2012Metric | C1, C5, C19 |
| 3 | 1k | Resistor_SMD:R_0402_1005Metric | R2, R4, R6 |
| 2 | 15p | Capacitor_SMD:C_0402_1005Metric | C3, C4 |
| 2 | 27 | Resistor_SMD:R_0402_1005Metric | R7, R8 |
| 2 | 4.7u | RP2350_60QFN_minimal:C_0402_1005Metric_small_pads | C6, C7 |
| 2 | 4.7u | Capacitor_SMD:C_0402_1005Metric | C9, C10 |
| 2 | 5.1k | PCM_SparkFun-Resistor:R_0402_1005Metric | R11, R12 |
| 2 | DNF | Resistor_SMD:R_0402_1005Metric | R1, R9 |
| 2 | SW_Push | Button_Switch_SMD:SW_Push_1P1T_NO_Vertical_Wuerth_434133025816 | SW1, SW2 |
| 1 | 0 | Resistor_SMD:R_0402_1005Metric | R10 |
| 1 | 3.3u | RP2350_60QFN_minimal:L_pol_2016 | L1 |
| 1 | 33 | Resistor_SMD:R_0402_1005Metric | R5 |
| 1 | ABM8-272-T3 | Crystal:Crystal_SMD_3225-4Pin_3.2x2.5mm | Y1 |
| 1 | Conn_01x08 | Connector_PinHeader_2.54mm:PinHeader_1x08_P2.54mm_Vertical | J2 |
| 1 | LED | LED_SMD:LED_0603_1608Metric | D1 |
| 1 | NCP1117-3.3_SOT223 | Package_TO_SOT_SMD:SOT-223-3_TabPin2 | U2 |
| 1 | RP2350_60QFN | RP2350_60QFN_minimal:RP2350-QFN-60-1EP_7x7_P0.4mm_EP3.4x3.4mm_ThermalVias | U1 |
| 1 | SM03B-SRSS-TB | Connector_JST:JST_SH_SM03B-SRSS-TB_1x03-1MP_P1.00mm_Horizontal | J4 |
| 1 | USB_B_Micro | Connector_USB:USB_Micro-B_Amphenol_10103594-0001LF_Horizontal | J1 |
| 1 | USB_C_Receptacle_PowerOnly_6P | Connector_USB:USB_C_Receptacle_GCT_USB4125-xx-x_6P_TopMnt_Horizontal | J3 |
| 1 | W25Q128JVS | Package_SO:SOIC-8_5.23x5.23mm_P1.27mm | U3 |
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Questions
How big is the Grandpa 2.0 PCB?
It measures 52 × 51 mm and has 2 copper layers, 1.6 mm thick.
What parts does the Grandpa 2.0 use?
67 parts, built around the W25Q128JVSIQ, ABM8-272-T3 and SM03B-SRSS-TB. 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 Grandpa 2.0 KiCad files?
From the samueljcurtis111/Traffic_Controller_PCB repository on GitHub, at the commit this page was made from: the board is _restore_backup_2026-07-08T11-05-03-149/grandpa_2.0.kicad_pcb and its schematic _restore_backup_2026-07-08T11-05-03-149/grandpa_2.0.kicad_sch. PCBKit opens the board in the browser, with nothing to install.
Can I use the Grandpa 2.0 design in my own project?
Its repository states no licence, so its author keeps all rights: ask samueljcurtis111 before reusing the design.