(Well, to sumarize this post, how do I connect a BAFANG BB Torque Sensor 6 pin to a Aliexpress S866 brushless controller wich have 3pins to connect a PAS? , and I explain how I did it to try it and the problems I encountered )
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Hello people! I am completely new to eBikes and I have been searching for hours to find a solution, but to no avail. Therefore, I am reaching out for your valuable help with my problem. I am having an issue with connecting a pedal assist (PAS) to my controller. Some time ago, I attempted to "build" my own eBike using parts I had acquired, and eventually purchased a brushless controller on AliExpress for eBikes, as they are known to be compatible with a variety of eBike components. However, I want to install a pedaling assistance system instead of a throttle to comply with the laws in my country. I managed to obtain a BAFANG bottom bracket torque sensor, which I planned to install on my eBike project. The problem I encountered is that the torque sensor seems to send a positive signal instead of a negative one, and it has around 32 pulses, whereas the controller only accepts a maximum of 12 pulses. I observed the pulses by soldering a LED diode between the green signal cable and the black one to better understand the mechanism. Additionally, the torque sensor has 6 pins, while the controller only accepts 3 cables. I connected the orange (positive 5 V), black (negative GNF), and green (CAN High) cables, leaving out the white (CAN Low), brown (speed signal 1), and purple (speed signal 2) cables. I am not sure of the purpose of the last two cables, but they are labeled in the manual. My question is whether anyone has a solution to this compatibility issue so that I can successfully connect it to my controller.I've searched everywhere on the internet but nothing :/ . I've already tested whether the motor works in walk mode.The option might be to buy one on amazon but in the circumstances I'm in I can't apply it (and sorry for the bad english).
Here's the link to the controller and some videos/photos if you want to check it up:
My brushless controller link
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Ik that this is a lot more complicated than simply buying a new PAS, but it's the only solution I've got right now...
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Hello people! I am completely new to eBikes and I have been searching for hours to find a solution, but to no avail. Therefore, I am reaching out for your valuable help with my problem. I am having an issue with connecting a pedal assist (PAS) to my controller. Some time ago, I attempted to "build" my own eBike using parts I had acquired, and eventually purchased a brushless controller on AliExpress for eBikes, as they are known to be compatible with a variety of eBike components. However, I want to install a pedaling assistance system instead of a throttle to comply with the laws in my country. I managed to obtain a BAFANG bottom bracket torque sensor, which I planned to install on my eBike project. The problem I encountered is that the torque sensor seems to send a positive signal instead of a negative one, and it has around 32 pulses, whereas the controller only accepts a maximum of 12 pulses. I observed the pulses by soldering a LED diode between the green signal cable and the black one to better understand the mechanism. Additionally, the torque sensor has 6 pins, while the controller only accepts 3 cables. I connected the orange (positive 5 V), black (negative GNF), and green (CAN High) cables, leaving out the white (CAN Low), brown (speed signal 1), and purple (speed signal 2) cables. I am not sure of the purpose of the last two cables, but they are labeled in the manual. My question is whether anyone has a solution to this compatibility issue so that I can successfully connect it to my controller.I've searched everywhere on the internet but nothing :/ . I've already tested whether the motor works in walk mode.The option might be to buy one on amazon but in the circumstances I'm in I can't apply it (and sorry for the bad english).
Here's the link to the controller and some videos/photos if you want to check it up:
My brushless controller link
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Ik that this is a lot more complicated than simply buying a new PAS, but it's the only solution I've got right now...