Author Topic: Mars Rover Science PCB Schematic Review  (Read 631 times)

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Offline rapsforlifeTopic starter

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  • Posts: 3
  • Country: ca
Mars Rover Science PCB Schematic Review
« on: October 16, 2020, 02:57:49 am »
Hey y'all! My robotics team is preparing for the University Rover Challenge and just completed revision 2 schematic of our science mechanism. Would appreciate a fresh set of eyes before we move on to layout.

https://github.com/uwrobotics/MarsRover2021-hardware/blob/master/Projects/Science/Rev2/Science.pdf
 

Offline MrLau

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  • Posts: 2
  • Country: dk
Re: Mars Rover Science PCB Schematic Review
« Reply #1 on: October 16, 2020, 06:09:30 pm »
Just quickly looked it over, and noticed a few things:
Your pull ups for the I2C bus seems pretty low, I think you could get away with something higher unless you really have a lot of devices on the bus.
You LEDS are also really brightly lit with 10mA, If they have to be seen from far away this might be intended. But if it's just for debugging/development I think they will be to bright, might become annoying.
Your buck converter uses 1uH make sure this gives you a low enough ripple for your calculations.
Lastly why not use the split termination available on your CAN transceivers?

 

Offline Pack34

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  • Posts: 753
Re: Mars Rover Science PCB Schematic Review
« Reply #2 on: October 16, 2020, 11:29:21 pm »
You may want some circuit protection on those limit switches. At least something for ESD.
 


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