01 / ARCHITECTURE
Control chain
The same control idea is used by both builds.
OPEN ENGINEERING PROJECT
OpenSoccerBot
A manual RC soccer robot platform documented as a complete system: controller input, drive train, power, mechanisms, firmware and calibration.
Open sourceMIT licenseManual-control only
ADVANCEDdrag to inspect · drive output shown below
02 / SCOPE
Manual RC platform
Autonomous navigation is intentionally outside this repository.
Included
RC PWM input, drivetrain, kicker, dribbler on Advanced, protected power, failsafe and calibration.
Separate work
Ball tracking, obstacle avoidance, navigation and autonomous decision-making.
Reference radio: FlySky FS-i6 / FS-i6X + FS-iA6B. The base firmware uses individual PWM receiver outputs so other compatible radios can be substituted.
03 / WIRING
Interactive wiring explorer
Select a signal group to highlight the relevant path. The diagrams are local SVG schematics, so the site has no external image dependency.
Signal group
ESP32 GPIO is not 5 V tolerant. If your receiver output can exceed 3.3 V, use an appropriate divider or level shifter.
04 / POWER
Battery builder
Calculate series/parallel pack values before selecting the cells and regulator.
POWER PATH
Protection first
Battery +→Fuse→Master switch→Motor rail
↳ Buck / BEC → controller + receiver + servo
- Keep motor current off the MCU supply rail.
- Place the fuse close to battery positive.
- Size wire, connectors and driver for measured current.
- TB6612-based builds documented here are 2S/3S only.
05 / CONTROL
RC input and motor response
Move the virtual axes. The bars use the same drive equations documented in the firmware.
STRAFE
X 0.00Y 0.00
ROTATE
X 0.00Y 0.00
4WD MecanumFL · FR · RL · RR
06 / HARDWARE
Component explorer
Parts are grouped by function and filtered by build.
07 / FIRMWARE
Firmware structure
08 / BUILD
Build sequence
Structure → power → signals → mechanisms → calibration.
SOURCE
Engineering repository
The website is a separate GitHub Pages repository. Hardware, firmware, BOM and detailed documents remain in the main project repository.