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My hub has a freewheel, so can't use the hall sensors for speed/ distance measurements. The spoke magnet sensor is a two wire device, so probably a reed switch. On the outgoing Brainpower controller this worked fine connected to the 2 pin external speed sensor connector with a red and a white...

Finally got the phase and hall effect connections sorted. Note to self: Don't assume the black wire is ground - it just could be the screen, and the black wire is redundant... That wasted a fair amount of time! The LCD kept saying E03, but I assumed that an incorrect hall sequence could give...

Well, the motor cable finally arrived (Thanks, Evri...) and it's no bloody use at all! I now have two female connectors, which I find totally weird. So I'll just cut the cable and solder things. I'd hoped to have a neat, removable solution, but obviously the universe had other ideas.

One more thing, while I wait for the motor cable to arrive: I think I'm right in saying that I will need to keep the spoke magnet and sensor, as the hub motor has a freewheel? That being the case I will have to move it from the back wheel to the front, so that I can break out the wires for it...

Sadly, luck doesn't work like that.

Thanks Interesting. Any insights on sorting the phase and hall connections? Further reading suggests it might not be necessary to go through all 36 permutations, but you guys seem to have a lot of experience.

So...I guess the throttle will be useful for testing, and I might replace the PAS that I already have, even though the sensor is epoxied to the frame... However, I'm slightly dismayed that there appears to be no "learn mode", so I'll have to try 36 different permutations of phases and hall...

Holy cow! The controller arrived today! Complete with a throttle I don't want/didn't order and a PAS that I don't want/didn't order, and a cable that doesn't seem to be if any use. Sadly, the motor cable will probably take much longer in transit.

You've all been very helpful so far, thanks. Re. Cabling: I'm competent with a soldering iron etc., so while I don't mind too much about cutting and splicing cables for PAS etc., I'd prefer to leave the 9 way Julet motor connector as is, so looking for a mating cable. I seem to be able to find...

This is what I ended up ordering, after moving to a desktop and much agro. KT kunteng Electric Bicycle Motor ebike Controller 24V 36V 48V 250W 500W 1000W Brushless DC Sine Wave sensor Controller My hub motor has totally different connectors for phases and hall sensors, so I guess I'll need to do...

They show 3 pictures of controllers, but no description of which one they are... Do you suppose the LCD comes with a cable? And what is the optional cable I can order? Very confusing, but good cheap price! Any help gratefully received!

Thanks. I'm having a lot of trouble with that website, it's hard to tell what I'm actually selecting. Reminds me of AliExpress, where you think you've ordered a pair of shoes, but it turns out you've only bought the laces...

Giant sync drive front hub motor, 36v 10.5ah battery from Yosepower..

Only just got back to this - had to clad our new oak framed garage, supervise the slate roof and all manner of other things. Played around in our paddock today, and I now totally understand what you've all been saying about speed based rather than power based. It doesn't really feel like pedal...

I was never relying on some "irrelevant shite on the internet". Just on my understanding of how Hall effect devices work and 50 odd years working with electronics.

I taught two of the grandchildren (the two who live with us) by taking the pedals and chain off, and putting them back on when they'd learnt to balance. Much better than "training wheels", in my opinion.

And I'm pretty sure that you're wrong about this, but when I questioned it before you were dismissive, to say the least. I still maintain that detecting direction requires two hall effect devices, albeit they can be integrated into a single chip.

Hard to say, without moving the spoke magnet sensor to the front(driven) wheel.

Alternatively, I could jury rig a throttle, just for experimental purposes, but that's not my aim.

Once again, I don't really know, there's too much going on at once.