http://forums.leaflabs.com/topic.php?id=846 A place to share, learn, and grow... en-US Fri, 22 Jan 2016 00:23:30 +0000 http://bbpress.org/?v=1.0.2 q http://forums.leaflabs.com/search.php http://forums.leaflabs.com/topic.php?id=846#post-5120 Fri, 10 Jun 2011 14:19:24 +0000 poslathian 5120@http://forums.leaflabs.com/ <p>Ryan,<br /> Sorry to hear about the keyboard. You might consider using a cheap USB hub when prototyping so you can fry the ports with impunity.</p> <p>via: <a href="http://www.sparkfun.com/datasheets/Robotics/Ardumoto_v12.pdf" rel="nofollow">http://www.sparkfun.com/datasheets/Robotics/Ardumoto_v12.pdf</a><br /> It looks like the ardumotor draws its power of Vin, and the two inverters draw from the Vcc line (which on Maple is 3.3V, I assume thats OK for those though).</p> <p>On Maple Vin is connected to the input of the onboard regulators, which is determined by your jumper setting. The power selection jumper will source Vin with either the external barrel, the USB 5V, or the lipo input. </p> <p>If you did not change the jumper, and were still powered off USB, then Vin would be sourced from USB - the ardumotor would draw from that line (500mA max) and likely trigger the overcurrent protection circuit on your computer's USB controller. If this is the case, the solution is to switch the jumper from USB to Ext. </p> <p>Please also note, from the errata (<a href="http://leaflabs.com/docs/hardware/maple.html#errata" rel="nofollow">http://leaflabs.com/docs/hardware/maple.html#errata</a>) that the barrel jack is 12V max, not 18 as indicated on the silkscreen.</p> <p>If you had the jumper set correctly, then its back to the debugging drawing board ;) </p> http://forums.leaflabs.com/topic.php?id=846#post-5100 Thu, 09 Jun 2011 08:53:43 +0000 rbardsley 5100@http://forums.leaflabs.com/ <p>Anyone else had any luck getting the ArduMoto board up and running?</p> <p>I managed to port my code over correctly. Everything seemed to be up and running correctly. I had LEDs representing the PWM signals pulsing just as they had on my Arduino setup. When I connected my 1800mA 12VDC power source and a pump...</p> <p>It threw a USB drawing too much power error on my laptop.</p> <p>Now my USB keyboard seems to have stopped working. The ports on my laptop are fine, but my keyboard is definitely toast.</p> <p>Any ideas?</p> <p>Thanks,</p> <p>Ryan </p>