Recent Posts

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41
General Discussions / Re: Throttle Wiring
« Last post by BillysMagicBikeShanty on May 20, 2025, 07:37:38 PM »
I’ve answered my own question.

3 pin Grin / Cycle Analyst throttle wiring
Red:+5vdc
Black: Ground
White: Speed Control Signal (1-4v output)

5 pin Wuxing throttle wiring
Pin 1: White, 5vdc
Pin 2: Green, Speed Control/Throttle Signal (1-4v output)
Pin 3: Black, Ground
Pin 4: Brown, Lighting Feed
Pin 5: Orange, Battery Voltage Indicator

Operational check good 👍

Horay, now I can use my rear shifter again.
42
General Discussions / Re: Throttle Wiring
« Last post by BillysMagicBikeShanty on May 20, 2025, 05:30:15 PM »
Close up photo
43
General Discussions / Re: New member with torque arm question
« Last post by BillysMagicBikeShanty on May 20, 2025, 05:15:09 PM »
Thanks Alan!
44
General Discussions / Throttle Wiring
« Last post by BillysMagicBikeShanty on May 20, 2025, 05:09:30 PM »
Hi, I’m new to this forum.

I’m trying to use the 3-wire throttle (black, red, white) with the Wuxing 29DX 5-wire connector (black, brown, orange, white, green).

Which wires do I splice together?

I’ll attach photos.

Thanks in advance
45
General Discussions / Re: e-bike with a magic controller
« Last post by Bargo on May 20, 2025, 01:13:42 PM »
As I have been digging into similar problems in the past, one recommendation would be that you start the throttle as slow as possible for testing, because otherwise logic kicks in and does not allow movement if wheel does not have any load. It could be a firmware dependent setting. if you say motor works on pedaling then PAS logic works which may mean there is a dead diode or two in the front and back faces of the controller somewhere near the throttle signal. try to replace it with another T3 diode, also you might have burned a 4.72k resistor, which first hits the throttle signal on the board
46
General Discussions / Re: New member with a few questions
« Last post by Bargo on May 20, 2025, 01:07:25 PM »
Thanks a lot, @Alan all this help is highly appreciated, I usually repair graphic cards in spare time, but this board got me talking to my gpt more than to myself. I had to reverse engineer the whole thing until I found out I was wrongly thinking signal wire is the GND wire. Was a very hard learning.

After all, the second board is fully functional now.

Thanks again, if you know where I can get this SMP5-20150702.OC8 firmware it would be helpful, otherwise not sure if its dump-able, but should be I think :D.
47
General Discussions / Re: New member with a few questions
« Last post by Bikemad on May 19, 2025, 08:56:01 PM »
If you're using a 36V battery the controller should be set to 36V.

The firmware for the Smart Pies should be SMP5-20150702.OC8 the other two versions (MP5-20150702.OC8 and EDGE-20150702.OC8) are for the Magic Pie 5 and the Magic Pie edge motors.

If your controller is marked 18A it should already have the correct firmware for your Smart Pie.  ;)

Alan
 
48
General Discussions / Re: New member with torque arm question
« Last post by Bikemad on May 19, 2025, 08:21:19 PM »
Hi andto the forum.

ebikes.ca produce a torque arm that is designed to use existing eyelet mounts on either the rear frame or the front fork.

Check out the TorqArm V5 on their website or watch the YouTube video here.

You can even download a full scale drawing to enable you to print and cut out the pieces to test the fit on your bike before purchasing.

I think the V6 or V7 TorqArms would be a much better choice as they transfer the torsional force much further away from the dropouts, which should greatly reduce any chance of the dropout breaking due to metal fatigue from the bidirectional axle torque being constantly applied directly to it during both power and regen, which the dropouts were never designed to withstand.  ;)

Alan
 
49
General Discussions / Re: New member with a few questions
« Last post by Bargo on May 19, 2025, 12:10:55 PM »
As I went back to the original controller that was dead, I found out that there was a short on several places, including the STM32F, apparently something went bad, what would be a suitable firmware to dump on it for this wheel?

SMART 4 VEC INT 18A V5

50
Electric Boat Conversions / Re: Brake by reversing
« Last post by Johnculley on May 18, 2025, 06:25:58 PM »
It’s a battery level meter and quite accurate. The. Buttons are on/off and speed mode, which doesn’t seem to make any difference. You can also use the buttons to reprogram the throttle so it works the opposite way round.
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