Recent content by Robert M

Just to one thing to add. The controller switches the motor on after recognizing 5 pulses within 3 seconds. Also, when I say "open collector", I am not absolutely sure if that is the correct term for such a connection pin, i.e. a current limited connection on an IC or transistor which is...

Dave, Thanks for your info and help. I've grabbed myself an oscilloscope from work and looked at the signalss and yes, you are perfectly correct. The sensor is generating pulses. For the electronic wizards amongst you, I 've found that the sensor acts as a sink of a 5V signal which comes...

Hello guys I hope one of you can help My PAS sensor has recently developed a fault. The cable had initially an intermittent fault very close to the sensor head and is now dead ! The sensor is labeled as a power assist sensor V series It was supplied with +5V (red), 0V black and and the...

happily cycling on an home built e-brompton with what possibly is a tongxin front hub motor

Jerry, Thanks for your excellent help. Only once needed a tool to get to the inside of the motor when I just used a big enough rubber coated tool band used to remove the oil filter from my car. The "other" tool is easy to make, I have access to a big lathe at work. One question is, do I...

Thanks d8veh for your comment. >>a nice Q85 motor, Possibly yes, but then the cable would still probably be on the same side. I am unfamiliar with the Q85 motor. Why should it be better than the Tongxin of Bafang motor? Could you send me a link for more information and where to get this...

Hello Jerry, I am not sure if you are still active on this forum. I was wondering if you could help me with the "tool" for dismantling the planetary gearing on a tonxin motor. Could you send me a photo (with a ruler on it) so I can see how it looks. I assume thee trick is to pull the sun...