What it means then from what I can see is that the lcd screen that came with the rear wheel powers on/off the rear controller from the lcd screen.dustNbone wrote: ↑Feb 05 2018 12:02amWhat do you mean digital/analog? One has an LED voltage readout?
All ebike throttles I've seen are simple hall sensor devices, about as "analog" as it gets. They take 5V input, and output a variable voltage depending on throttle position. Nothing digital going on there.
You should be able to split the output signal from one throttle and send it to two controllers. Just make sure you only connect the input (+5V supply) from one controller to the throttle, but send the output (green wire usually I think) to both controllers. You'll also need to join the ground wires (black usually), just not the +5V one (Red I assume).
Don't know if I'd go for the module setup as its to tech for me. Will this one you linked work for me? I think I'll go for the front drive or front and rear drive setup.dustNbone wrote: ↑Feb 05 2018 4:08pmYeah that will be one limitation of that setup. Another option is to use an independent 5V supply direct off your battery to feed power to both hall sensors.
Maybe something like this to step the voltage down
https://www.ebay.ca/itm/DC-DC-3V-5V-12V ... 2076520025
Another thing that would work is using an A-AB-B switch on the throttle signal (output) that would allow you to switch which controller(s) receive the throttle signal. I'm not sure how your controllers would respond to having the throttle connected while they're powered up, so you might need to power them off while changing the position of the switch.
Here's the connections for the controllers I am making.dustNbone wrote: ↑Feb 07 2018 2:51amThat module is just to give you 5V to supply the hall sensor for the throttle, I don't see why it wouldn't work. You supply it with high voltage on one side and it spits low voltage out the other side. That way no matter which controller(s) are powered up, the throttle will always work.
As for the A-AB-B switch, I don't think burning anything out is a worry, I was more thinking about the controllers suddenly going to wide open on you when you weren't ready for it. That can be rather alarming.
As for the speed control of the two controllers, and how they sync up, I'd check some of the other 2WD threads here on ES out. This has been done successfully before, but not by me.
dustNbone wrote: ↑Feb 09 2018 5:53pmLooks right to me. If both controllers are also connected to the same battery then they will have a common ground, so all should work as intended. Just make sure to check polarity on the output of the module before you connect it to the throttle, reverse polarity can cook hall sensors.
Fuse or not is up to you, personally I wouldn't worry about it.