Controller Pinout

[Rich12902]

I have a brand new controller and torque sensor. I'm upgrading from a cadence sensor. This on a Ride1up Lmtd V1. I ordered the parts from them. Hoping to find the pinouts for the new controller
(LSW1482-14-6E-1). Also an extension cable from the 6pin male Juliet connector on the torque sensor to the controller. Ride1up doesn't list a cable and won't recommend an alternative. The pic of the 3 connectors is what's left to figure out.

Thank you

 

[stancecoke]

Hoping to find the pinouts for the new controller

the controller seems to be quite the same as Phoebe Liu used to sell at AliExpress.

https://aliexpress.com/item/1005002711701202.html

Sadly they seem to be sold out recently

The torquesensor seems to be the same as this one:

https://aliexpress.com/i/1005006789513705.html?

This is a "Bafang style" sensor. You can find the pinout here:

Funktionsprinzip BAFANG Drehmomentsensor

Ich habe schon lange mit der Sezierung eines BAFANG-Drehmomentsensors geliebäugelt. Freundlicherweise hat mir @mechaniker mit seinen China-Connections einen beschaffen können, vielen Dank dafür! (y) Zu einem entsprechenden Preis kann er auch als offizielles Ersatzteil über den Fachhandel bezogen...

www.pedelecforum.de

someone translated my picture to englisch already .

The spare parts page of Ride1up is not very helpful, at it shows no details for the product.
The extension cable will be not sourceble ready to use, I guess. You will have to crimp/solder it yourself.

Are you sure, that your controller is suited for a torquesensor? It needs a special firmware on it to deal with the torquesensor.

 

[Rich12902]

Stancecoke, I do have the proper controller and torque sensor per Ride1. The pinout of the torque sensor is helpful thank you. I'm still looking for the individual wire pinouts on the controller to match up with the torque sensor. I will contact Ride1 next week and actually talk with a person. Maybe they have parts that they don't show on line. Thanks again.

 

[stancecoke]

I'm still looking for the individual wire pinouts on the controller to match up with the torque sensor

If guess, the two connectors with two pins are for the back and the front light, the 4pin connector is for the torquesensor. But the Bafang Style torquesensor is a little tricky. Often only +5V, GND, the torque wire and the green wire with a strange signal on it are used. So four pin would be OK. But the assistance with this signal on the green wire is not satisfying. I had it on a NCM C7 and replaced it with an ERider T15. But maybe, Lishui has a better implementation with proper torque and cadence measurement.

This is a photo of a Bafang hub motor controller, only 4 wires are connected to the PCB, the white and the purple wires are simply cut.




If you can get a 1000W Lishui controller for $30, this would be really a bargain!!!

LMT'D (v1 ) Replacement Parts - Ride1Up

Get replacement parts quickly and easily for your Ride1Up LMT'D electric bike.

ride1up.com

 

[Rich12902]

Stancecoke, thank you again. Good information. Unfortunately right after I ordered the controller and the torque sensor they cut the prices in half. It's not worth me sending them back and then possibly not being able to get them at a better price. I will contact them Monday and question them about a cable that converts the torque sensor which they sold me to the controller. In my emails to them they didn't recommend this at all. Yet the bike I have at one point the version one they had a torque sensor and the controller. I appreciate your information thank you

 

[Rich12902]

Stancecoke, so I contacted ride one up. The cable that converts the six pin Juliet from the torque sensor to the four-pin I believe jse SM connector is not available. This cable is used in both the version one and version 2 of The limited. So I have since ordered a extension cable with a Juliet 6 pin female with a torque sensor and I've also ordered a jscsm connector kit. I'm still questioning the pinouts on the controller versus the six pins on the torque sensor.

 

[stancecoke]

I'm still questioning the pinouts on the controller versus the six pins on the torque sensor.

You could check the voltage on the green and the yellow wire, 0V to GND would give a hint to an analogue input (torque signal), 3,3 to 5V will be a digital input (PAS signal).
Of course with the controller switched on.

 

[Rich12902]

Stancecoke, so I got a cable for the torque sensor and I've got the jfcsm connectors. I put it together color for color to match the controller and torque sensor. I got nothing for assist. So I changed the yellow to a white and I got nothing for assist. Then a thought occurred to me there's an external gear on the torque sensor on the drive side. I do notice that there are chainring adaptor spiders that mount to the external gear on this. What I can't figure out is this gear moves every time I pedal so why would I have to put a spider gear on that to get it to work? It's a little confusing I ordered the gear last night before coming out and looking at it this morning but it seems like this gear is fixed and it moves with the pedals anyway. May still be a wiring issue I can't imagine I would need this chainring spider adapter.

Thanks

 

[stancecoke]

I can't imagine I would need this chainring spider adapter.

Of course you need this adapter, otherwise, the sensor can't detect any torque between the crank and the chainring.

https://www.pedelecforum.de/forum/index.php?threads/funktionsprinzip-bafang-drehmomentsensor.56636/

 

[Rich12902]

Sorry for the delay in responding. Yeah silly me I really didn't understand the whole adapter thing. I do know and am waiting on the left hand nut to secure the spider chain ring to the torque sensor. Should of came with the sensor but it didn't.