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In case you are not aware, PC based oscilloscope are cheaper

Okay, so the controller mixes the torque sensor feedback with a relatively high resolution PAS signal. A pure cadence sensing controller in conjunction with this high resolution PAS, the run on should be similar, i.e. negligible, though I could be wrong EDIT: Above assuming controller firmware...

The firmware running in the controller might still add it without exposing it to the configurator (not saying that is necessarily the case, but that there is a possibility, w/o seeing the firmware source one can't be sure). Also another cause for the lag is low pass filter, parameters of which...

Isn't there any noticeable lag at start/stop ? Torque exerted by the rider is pulsating (peaking twice) in a pedal rotation, to avoid jerky motion (& thus a pleasurable ride), normally controller does a low pass filter (plus ramp) over torque sensor input, this in effect causes a lag. The...

If current needs to be known directly, then yes. W/o any programming, I sometimes use it with oscilloscope (whenever current probe mentioned earlier is not available on loan at our incubator & when super accuracy is not required). Feed 5V, 2.5V out signal corresponds to zero current & the...

It depends on the hall sensor used. For e.g. Tektronix A622 current probe (as is suited for oscilloscope) uses hall sensor, in UK it might cost around £1000. There are hall sensor modules based on ACS712 that are not costly, reasonably accurate. And halls are often used in EV controllers where...

I second that, there is a possibility of heat shrink getting shrunk into non existence PS: I meant if using normal diodes

I think a properly tuned torque sensor based setup would not cause such a problem

Low speed & high load on the motor means phase current will be the maximum. Since hall & phase cables run close, there is a probability of the high phase current inducing noise in hall cables (not saying that it is indeed the problem here, but is a possibility) If the above is the reason, then...

Thanks @flecc for the details and the very informative OP Actually the reason I looked into EAPC legalese was due to a VESC development discord discussion w.r.t legality of four wheeled pedelec. I was under the impression that EAPC is applicable only for 2 & 3 wheeled ones (IIUC, which 1983 law...

Hi flecc, Resurrecting an old thread, Isn't https://www.legislation.gov.uk/uksi/2015/24/introduction/made the 2015 amendment to EAPC ? IIUC the 2015 amendment you mentioned is the one for The Pedal Cycles (Construction and Use) - it doesn't mention 250W replacing 200W for two wheeled and...

I had not thought about it earlier. Though chances are less (haven't come across any case yet), I think it is possible. Just thinking loud, assuming it worn on spectacle (my case), 1. Probably risk factor would be same or less than that of the spectacles 2. Spectacles might prevent mirror...

Handle bar mounted mirror was at times shaky for me (no front suspension). Take a Look mirror was helpful, it can be used left or right side, can be fixed on helmet/specs and can be kept in your pocket. But not everyone will be comfortable with that, it takes some time to get used to it and...

Wondering whether it would be legal for the user to put "legal sticker". As I understand, if there is a proof (say manufacturer's bill) to back it up, it might be okay, but otherwise might get treated as a double illegality - one because of the electrics (over the limit or unknown) & other due...

Cadence sensors would be more prone to failure as compared to throttle. But a cadence sensor failure would not be catastrophic as in the case of open/jammed throttle. Cadence sensor provide a train of pulses under normal operation, the controller observing the continuous pulses (rather square...

Y Yeah, I missed that, if throttle gets stuck other than default position, brake sensor is needed

Even in the highest PAS level, does TSDZ2 stop without any delay ?

Connecting a pull down (say 10K) b/n signal & ground on the PCB can prevent open throttle condition. AFAIK, the only controller having it is VESC based spintend

An option to get the torque sensing work with a generic controller would be to use cycle analyst additionally. There is a controller available that can handle torque sensor as well, https://aliexpress.com/item/1005002711701202.html. It seems suited for Erider torque sensor that outputs 1.5-3V...

So the system detects stlink. To check whether, stlink communication with the processor inside TSDZ2 is working, openocd tool can be used, but it often happens that the one in the Linux distribution will not work & latest openocd would have to be compiled from sources, also the target...