Version 1 testing completed.

December 31, 2012 in 8 Channel PDU by Joshua Oster-Morris

Hey guys. Things are looking very good for this device. I’ve done my version one testing and am moving on with version 2 now. The two boards in the video stack and form a 2.75″x2″x1″ box which will be covered in epoxy so its completely water tight and near bullet proof. I’d like to get your input on features to include in the firmware and software.

Features on my list now:

  • delayed turn on (turn on circuit so many seconds after ignition is turned on)
  • delayed turn off (turn off circuit so many seconds after ignition is turned off)
  • live current consumption by channel and overall
  • user set over current shut off (AKA software circuit breaker)
  • system voltage measurement
  • adjustable PWM dimming on all 8 channels
  • high side switching
  • 4 input signal wires that can be used to trigger changes to circuit condition (on,off,dim level, etc)
  • all features programmable via smartphone with bluetooth
  • 100A max current

First prototype PCBs arrive

December 11, 2012 in 8 Channel PDU by Joshua Oster-Morris

8 Channel PCBs arrived yesterday from China. Parts are behind schedule so I am in a holding pattern. A few days I suspect. I’ve written the Bluetooth firmware though, so that part is tight. I will be doing prototyping this weekend I suspect and should have an idea how close I got on the first go around.

The photos below show both boards separate and stacked. The board on the right uses very heavy copper and I will likely double it again after thorough testing.

new PCBs