vorillaz

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• How to use MDBT42Q with Nema17 stepper motors?

  @vorillaz started

  • 3 comments
  • 1,695 views

  @vorillaz replied
• How to use MDBT42Q with Nema17 stepper motors?

  in Puck.js, Pixl.js and MDBT42 • 5 years, 2 months

  

  Wow, @Gordon that was fast and damn awesome as well.
  Thanks so much for the info, I'll give it a try and let you know :)

• How to use MDBT42Q with Nema17 stepper motors?

  in Puck.js, Pixl.js and MDBT42 • 5 years, 2 months

  

  Hey, y'all. I have the MDBT42Q breakout board and I am trying to create a simple example where a button is pressed and the stepper motor rotates for like a half revolution.

  I am using the A4988 drivers and I have managed to connect and continuously rotate the stepper motor using this sample code:

  const PIN_ENABLE = D14; 
  const PIN_STEP = D13;
  const PIN_DIRECTION = D12;
  
  digitalWrite(PIN_DIRECTION, direction);
  digitalWrite(PIN_ENABLE, enabled);
  
  analogWrite(PIN_STEP, 0.9, {freq: 100});
  

  I am not sure though how is it possible to count the steps per revolution and how frequency is related to rotation and time.
  Thanks in advance for your help :)

• Powering MDBT42Q through a lipo circuit

  @vorillaz started

  • 3 comments
  • 2,520 views

  @Gordon replied
• Powering MDBT42Q through a lipo circuit

  in Electronics • 5 years, 6 months

  

  Hello y'all. I recently bought the MDBT42Q breakout board for quick prototyping as well as a few bare modules. As my prototype on the breadboards works, I want to design and order a few PCBs.

  In the bare module documentation, it is noted that:

  A 3v non-rechargeable lithium cell is ideal for this (LiPo batteries have a voltage that is too high and will need the voltage dropping with a diode or voltage regulator).x

  I was hoping if someone has any examples of circuits powering the MDBT42Q module. My goal is creating a prototype with a LiPo charger on board via a USB port, so any help, schematics or advice will be highly appreciated.

  Thanks in advance.