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    KT motor controllers -- Flexible OpenSource firmware for BMSBattery S/Kunteng KT motor controllers (0.25kW up to 5kW)

    Thanks geofft for your time. Actually while you were writing this message I connected a lab DC power supply set at 3.2v and 0.1A to the X4 wire (of course I unsoldered it from the torque sensor) nothing happened. So you are probably right that it’s not about the Tqsensor but something else...
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    KT motor controllers -- Flexible OpenSource firmware for BMSBattery S/Kunteng KT motor controllers (0.25kW up to 5kW)

    Yes for a) and for b) I was able to go to 2.3v using hands buts I’m sure it could reach 3.2v if I was in a real situation pedalling with my legs in a hill lol.
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    KT motor controllers -- Flexible OpenSource firmware for BMSBattery S/Kunteng KT motor controllers (0.25kW up to 5kW)

    Well I used a 10k one and it drops to 0v so it should be good now. Yet even if I can read voltage correctly when pedalling, I don’t see any effect on the motor. Now I fixed the x4 voltage, the only remaining option to be investigated is to test different values of torque calibration in the x4’s...
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    KT motor controllers -- Flexible OpenSource firmware for BMSBattery S/Kunteng KT motor controllers (0.25kW up to 5kW)

    Yeah… I’ve tried to follow the trace and you can find it below. Dashed lines in red is not relevant components and blue dashed line is the component I removed when it was 5v. Comparing to the one you uploaded in the past, I was expecting a space to solder a pull down resistor.
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    KT motor controllers -- Flexible OpenSource firmware for BMSBattery S/Kunteng KT motor controllers (0.25kW up to 5kW)

    thanks for the quick answer @Geofft I updated the number but it hasn't solved yet my issue. Some additional information regarding the voltage When looking at the voltage between the PAS signal and ground I get the following voltages: 2.4v or 5.7v whether it's in front of a magnet or not I...
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    KT motor controllers -- Flexible OpenSource firmware for BMSBattery S/Kunteng KT motor controllers (0.25kW up to 5kW)

    here are some measures I took : With TQsensor plugged in GND - brown(input): 4,3v GND - PAS signal: 4,7v GND - x4 (torque): 0,74v Without TQsensor plugged in GND - brown(input): 4,3v GND - PAS signal: 5v GND - x4 (torque) : 1.2v The Bafang states the following : I'm using the following...
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    KT motor controllers -- Flexible OpenSource firmware for BMSBattery S/Kunteng KT motor controllers (0.25kW up to 5kW)

    Hello guys, and thanks for this great thread and work for an open source firmware. I am trying to build a new ebike with the following setup: - Bafang TQ sensor SR PA231.32.ST - Bafang autoshift 2 speed (but TBH I have no clue how to use that with the KT controller) - Throttle for a lazy mode -...
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    Looking for a 60v controller with torque sensor support

    Hello there, I’m looking for a controller that could support a bafang torque sensor already installed on my ebike. I want to move from 36v to 70v so my controller is not longer compatible. I couldn’t find anything for 60v supporting torque sensor. Any chance that someone can give me a...
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    Compatible generic controller for Bafang torque sensor

    thanks @stancecoke I order but the seller told me he is out of stock and he doesn't know when controller are back!!! I'm so unlucky. Any chance you have another reference like the Lishui-Controllers for BB Torque-Sensors (Sempu/E-Rider) ? Colour version is a bit expensive. cheers,
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    Compatible generic controller for Bafang torque sensor

    Thanks but these are even more expansive that proper bafang controller :lol:
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    Compatible generic controller for Bafang torque sensor

    Hi folks, I’m trying to revive a broken bike which has an existing Bafang Torque sensor. I have a 300w wheel motor and I would like to keep the existing Torque Sensor system from Bafang and plug it to a generic controller. I looked at AliExpress but I was not able to get any confirmation from...
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