2 layers114 × 135.2 mm
Kicker LT3751 OxeBots
OxeBots/ssl_electronics
Oxebots electronics design for the RoboCup Soccer Small-Size League
126 partsGPL-3.0
2 layers114 × 123.3 mm
Ssl electronics
OxeBots/ssl_electronicsOxebots electronics design for the RoboCup Soccer Small-Size League
- Size
- 114 × 123.3 mm
- Copper layers
- 2
- Thickness
- 1.6 mm
- Parts
- 60
- Nets
- 78
- Pads
- 227
- Tracks, vias
- 333, 26
- Pours
- 1
- Routed
- Yes
- KiCad
- KiCad 10.0 (file 20260206)
- Created
- 25 Apr 2025
- Updated
- 19 Sep 2026
Overview
Ssl electronics is an open-source printed circuit board by OxeBots, from the OxeBots/ssl_electronics repository on GitHub, published under the GPL-3.0 licence. It is a 2-layer board of 114 × 123.3 mm with 60 parts on 78 nets, routed with 333 tracks and 26 vias.
It is built around the ESP32-DEVKITC-32UE, 2SC945 and XT30PW-M. Its parts include 16 resistors, 13 capacitors, 8 transistors, 4 connectors and 1 IC. It belongs with the ESP32 boards of this library.
Main components
3README
README.mdSSL Electronics - Oxebots
Electronics design for the RoboCup Soccer Small-Size League (SSL).
System Architecture
- Main Board: ESP32-based controller board.
- Power Board: Power distribution and battery protection.
- Kicker Board: Board that drives the solenoid through a capacitor bank charged up to 200V.
Repository Structure
/pcbs: KiCad boards project files./Libraries: Custom symbols, footprints, and 3D models./exported: STEP and 3D exports./datasheets: Component documentation.
Core Components
- Toolchain: KiCad 9.0+
- MCU: ESP32 38-pin
- RF: NRF24L01+
- Sensors: GY-85 (IMU), AS5600 (motor encoder), VL53L5X (ToF sensor)
- Motors: BL48250 motor with driver board (for 24V).
- Solenoid: 25X50TL (for 24V)
Configuration
To resolve library dependencies in KiCad, you must configure the OXEBOTS_SSL_LIB_DIR path variable:
- Open KiCad.
- Go to Preferences > Configure Paths...
- Add a new entry (+ symbol):
- Name:
OXEBOTS_SSL_LIB_DIR - Path: Path to the
Librariesfolder in your local machine.
- Name:
This ensures all schematic symbols, footprints, and 3D models are correctly linked.
Parts
60| Qty | Value | Footprint | References |
|---|---|---|---|
| 16 | 10k | Resistor_THT:R_Axial_DIN0207_L6.3mm_D2.5mm_P7.62mm_Horizontal | R1, R2, R3, R4, R5, R6, R7, R8, R9, R10, R11, R12, R13, R14, R15, R16 |
| 9 | 100 nF | Capacitor_THT:C_Disc_D5.0mm_W2.5mm_P2.50mm | C2, C4, C5, C6, C7, C8, C10, C12, C13 |
| 8 | 2SC945 | Package_TO_SOT_THT:TO-92L_Inline_Wide | Q1, Q2, Q3, Q4, Q5, Q6, Q7, Q8 |
| 4 | 47uF | Capacitor_THT:CP_Radial_D10.0mm_P2.50mm | C1, C3, C9, C11 |
| 4 | ~ | Oxebots:HY-5_P2.00mm_Vertical | M1, M2, M3, M4 |
| 3 | MountingHole | MountingHole:MountingHole_2.5mm_Pad_TopBottom | H1, H2, H3 |
| 2 | JST_XH_B3B | Connector_JST:JST_XH_B3B-XH-A_1x03_P2.50mm_Vertical | J1, J3 |
| 1 | ESP32-DEVKITC-32U | Oxebots:MODULE_ESP32-DEVKITC-32U | U1 |
| 1 | GY 85 | Oxebots:GY-085 | IMU1 |
| 1 | Jumpers | Connector_PinHeader_2.54mm:PinHeader_2x08_P2.54mm_Vertical | J2 |
| 1 | M1_ENC_AN | Connector_JST:JST_XH_B3B-XH-A_1x03_P2.50mm_Vertical | as5600_1 |
| 1 | M1_ENC_I2C | Oxebots:JST_B2B-XH-A | as1 |
| 1 | M2_ENC_AN | Connector_JST:JST_XH_B3B-XH-A_1x03_P2.50mm_Vertical | as5600_2 |
| 1 | M2_ENC_I2C | Oxebots:JST_B2B-XH-A | as2 |
| 1 | M3_ENC_AN | Connector_JST:JST_XH_B3B-XH-A_1x03_P2.50mm_Vertical | as5600_3 |
| 1 | M3_ENC_I2C | Oxebots:JST_B2B-XH-A | as3 |
| 1 | M4_ENC_AN | Connector_JST:JST_XH_B3B-XH-A_1x03_P2.50mm_Vertical | as5600_4 |
| 1 | M4_ENC_I2C | Oxebots:JST_B2B-XH-A | as4 |
| 1 | XT30PW-M | Oxebots:AMASS_XT30PW-M | J4 |
| 1 | ~ | Oxebots:NRF24L01_PWR_ADP | PCB1 |
| 1 | ~ | Oxebots:NRF24L01 | PCB2 |
Questions
How big is the Ssl electronics PCB?
It measures 114 × 123.3 mm and has 2 copper layers, 1.6 mm thick.
What parts does the Ssl electronics use?
60 parts, built around the ESP32-DEVKITC-32UE, 2SC945 and XT30PW-M. 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 Ssl electronics KiCad files?
From the OxeBots/ssl_electronics repository on GitHub, at the commit this page was made from: the board is pcbs/main/main.kicad_pcb and its schematic pcbs/kicker/Kicker_LT3751_OxeBots.kicad_sch. PCBKit opens the board in the browser, with nothing to install.
Can I use the Ssl electronics design in my own project?
Its repository publishes it under the GPL-3.0 licence: you may reuse it on that licence's terms (keep the author's notice, and for a copyleft licence share your changes alike).
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