REVIEW: QR-E 250W ELECTRIC BOOSTER BICYCLE MOTOR AND B60i AND B70 BATTERY

[blueberry]

So allow me to show my ignorance. If the Qiroll switch is normally open couldn't you just put a simple in-line on/off switch in series with a normally closed brake cut off switch and avoid having to use a NOT gate (I'm not sure if there are normally closed brake cut off switches but I've read that there are)? Would have to know what wires route to the throttle vs mode switch. I don't think that I'd do this myself but Tuono brings up an interesting Q.

I think that would work, if the brake cut off is actually a mechanical switch. The ones I've seen are hall sensor based, but there probably are all kinds out there.

 

[blueberry]

It's easy to experiment on the wires, just get a spare micro-usb cable and strip it to bare wires on one side. Black one is usually ground, and then can figure out which of the green and white ones are throttle vs. mode change/regen by connecting each to the black one and seeing what happens.

 

[EMGX]

Thank you blueberry. I'm not interested in a brake cut-off myself but I dislike the S2 control so I'm going to see if I can make my own. Ordered a 6ft braided USB micro and a couple momentary push button switches that should arrive sometime today. Plan is to put one button on each handlebar grip where index fingers can actuate and see if I like that setup better.