
Dunning-Kruger
I know there has been issues with using the 360 deg servos with the iOTiny but I now have burned out 2 HDD servos using the iOTiny... Both were not under any load whatsoever just holding a position... Magic smoke both times.. Both only lasted 5 minutes with the iOTiny.... Should I try a third? FYI battery being used is a 7.2V Tenergy NiMH...
Anyone else using HDD servos with the ioTiny without issues? And is this just incredibly bad luck on my part?
I started on a new project a while back, and I use the EZ-B IoTiny with a HDD EZ Robot servo with good results and no issues.
It is powered by a Turnigy 2.2 Li-po 2 cell battery.
I did have an issue with an older NI-MH battery pack (that had good voltage) but made all my older HD servos jump around and act strange.
When I powered that same robot with a different battery, it worked fine.
Steve S
I did some testing this morning. I plugged an IoTiny into a fully charged 7.4V LiPo battery and I had 2 HDD servos holding position for 20+ minutes. I also put the servos through their paces for a while. In either case I had no issues.
Is your 7.2V NiMH battery perhaps a 9.6V? Is there anything else hooked up to your IoTiny that could cause an issue?
@DJ... They are probably from one of the first batches of HDD produced... It was the motors that failed (which overload) the fet on both of those servos... Saying that the 3rd servo seems to be doing fine..