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G Track - Ultimate control board for RC models

PROG Track - Ultimate control board for RC models

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Mode:OSHWLab Stars
OSHWLab Stars
Reproduction cost: $130

License

CERN Open Hardware License

Creation time:2024-12-07 16:19:19Update time:2025-05-19 13:10:48

Description

G-TRACK

G Track is the big brother of Tracklink V2. This can be used for all types of scale models RC Cars, Locomotives, Excavators, etc.

The ESP32-S3 MCU makes this board easy to be repurposed for other robotics projects too. Enough pins are exposed for extra I2C, SPI connections.

 

Features:

  • Input Voltage 6-17V (2S-4S Lithium Battery)
  • Power Management:
    • 5V buck convertor
    • 3.3V LDO regulator
  • 2x High power DC motor drivers
  • 6x LED Outputs
  • 12 extra IO pins Exposed
    • 4x Servo outputs
    • 4x ESC outputs
    • 4x Analog IO
  • 1x Output for external loads (upto 10A)
  • 1x I2S Audio Amplifier
  • Integrated Voltage sense
  • Firmware Power control
  • USB-C for programming and debugging

For convenience, the Motors and Leds have use 2 pin conntectors (JST-ZH and JST-SH)

 

Project Origins:

 

The Tracklink V2 quickly became quite popular with the Dragon Railway community. It was designed only for S scale locomotives. And the newly added G scale has been gaining traction for a while, so I designed this G-Track board for our members who make the G scale locomotives.

 

In these scale sizes space is not a constraint, so I exposed some extra pins for Servos, ESCs, Analog, etc since they wont increase the overall cost. Now with these features it will also replace the RCX-S3 which was designed for the X470 excavator.

Design Drawing

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