Just wanted to thank lyen for a great controller and communication on the above sensorless controller.
Got mine today about 10days after ordering from the US to the UK. No customs charge. Pricey little controller by the time you've added everything in compared to the cheaper controllers you can get.
But the difference is you can ask lyen to spec your own custom controller before it hits you door. Making it all the more worthwhile. Only down side mine is missing the USB ttl adapter that should have came with it. But I'm sure if anyone else's experience with lyen I'm sure he will help me out.
Quality of the controller is very good and it really is mini.
Here's it next to my 9 fet.
It's mostly the depth that is surprising.
I wanted a controller to work at 12s lipo and 18s lipo on a sensorless bafang bpm.
This controller has given me that flexibility and maybe later on 24s if I feel like hiring out the motor, gears and clutch.
The connections are the same as my 9 fet sensorless controller so setting up was a doddle.
12s throttle is smooth and the sensorless works well. The controller is currently set at 30amp current peak. So about 7amp higher than my 9fet.
18s the thing is a different bike. Hideously quick and some slight delays on the throttle response. I've been on it this morning loving it and love the flexibility to choose range or speed. My legs can just about keep up with the bike on full pelt.
The bpm is wound for a 24inch wheel but I'm running a 700c wheel. It's a hard tail. So I can now see why so many of you opt for the full Sus wider tire bikes.
Still very fun, not sure how long the motor will last at that voltage or current (now pulling peaks of 2000w) and the motor actually becomes warm for once. At 12s 22amp it never got warm at all. Think because I'm using a hybrid bike in amfairly flat area it just doesn't push it.
Anyway great controller. Well worth the buy.
Recommended even if the EB3 boards are out. This is still a great controller.
It does get warm though. But I'm running double the power I used to with 3 less fets.