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View this project on CADLAB.io.

HighPower-Mechaduino

KiCad based Mechaduino derivative which drives up to 10A.

This is the original Meachaduino Project: https://hackaday.io/project/11224-mechaduino

Warning: This Board is currently under development. Simply fabricating it doesn't mean it would work! See v0.1_BUILD_LOG.md for some problems found while building the first prototype.

A big thanks to the Shuttleworth Foundation for supporting the development of this Project.

Shuttleworth Funded

Improvements

  • ESD protection (especially USB)
  • flyback diodes
  • stronger drivers
  • better silkscreen
  • correct use of blocking capacitors
  • fuse (for protection against polarity reversal and shorts)
  • input voltage measurement
  • supply of the microcontroller via the motor voltage supply
  • external storage for calibration and configuration data
  • Temperature sensor

Planned Electrical/Mechanical Ratings

  • Input Voltage-range of about 12V-50V
  • N-Mosfet Driver which is capable of about 10A
  • board in the size of NEMA 23 (56x56xmm) or NEMA 24 (60x60mm)

Interfaces

  • USB
  • UART (3.3V)
  • Step/Dir/Enable (PoStep25-32 Compatible)

various informations

License

Hardware including documentation is licensed under CERN OHL v.1.2. license

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Mechaduino derivative which drives up to 10A, drawn using KiCad

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