Project Logs

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• Motors !

  fbrktr • 04/17/2016 at 08:43 • 0 comments

  Today was a great day, just a simple motor test but I'm very happy, all 4 channels are working fine and it's nice to have a laptop making something move.

  Used nScope to generate pwm and to check the encoders and the current sense output.

  Each channel will need :

  • 1 interrupt pin (mixed encoders)
  • 1 analog input pin (motor current)
  • 1 pwm out pin (motor speed)
  • 1 output pin (direction)

  That's 16 pins for the motor driver only, and I have other sensors (distance, compass...) and motors (pan/tilt,...) to connect. So the motor driver need it's own µcontroller with a serial interface connected to the Photon, using only two pins.

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• Processing UI bootstrap

  fbrktr • 04/04/2016 at 01:22 • 0 comments

  Ricky remote now has an UI, it just displays the heartbeat and a basic log yet.

  Presses and releases of up / left / down / right arrows are sent to the photon through the UDP channel, they will be interpreted later as move commands.

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• Basic communications

  fbrktr • 04/02/2016 at 18:33 • 0 comments

  Photon <-> UDP <-> Akka

  To make something easier to to start with, this robot will be remote controlled.

  Instead of using particle cloud pub/sub feature I'll use a direct Udp link between the photon and the remote controller. It should be faster, and won't suffer the one publish/second limitation.

  Read more »

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