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6-pin connector: 3 large pins are the phase wires, 3 small pins are connected to the internal speed sensor. Leave the speed sensor unplugged for now. Follow the pedal sensor cable from the bottom bracket to the controller box. It has 3-pin female connector. On the controller side, the...

If you could post pictures here, I may be able to help. First, check the motor cable connector. Does it have 3 pins or 6 or 9 pins? Next, does your bike have a spoke magnet on the rear wheel? Once I know that, I can tell you which wires go where.

Send Andy a picture and mark the wires you need to know, he'll tell you.

The error codes are on page 11 of the KM529 LCD manual. Download it here: https://wooshbikes.co.uk/manuals/KM-529-LCD-Display.pdf You initially reported error 23. 23 Motor Abnormality. Inspect if motor phrase is well-connected; Inspect if lines are well-connected between motor phrases and...

please do come back and let us know. I would like to know how their torque sensor works.

you can send Andy what you want him to test to rule out some possible causes. It won't take him long to check the parts you send in and can help you pinpoint the fault.

that's a good review.

I experimented with the last implementation. For the toseven implementation, I found the picture you posted previously from toseven leaflet. The picture was too fuzzy to make out the details but it looks like they replaced simply the Hall sensor in the TSDZ2 design with a strain gauge. There is...

you are right on this, I mentioned it in this thread but not on my website because I have not got the item in stock yet. I can also agree with this. The critical part in the software is the torque sensor. I experimented a lot with strain gauges and the problem with it is the small range of...

something I read when looking at the designs of DVMs. All DVMs have high precision shunt resistors (1% for common garden variety, 0.1% and better for high count variety, Vishay makes 0.01%), but you can only use calibration function with an external board of reference resistors on some models...

I spent some time yesterday reading up about calibration of domestic digital multitesters. It turns out that very few brands would publish data on the acuracy or precision of their DVMs. The best I found is the Uni-Trend UT181A. I looked also at the OWON OW18E which has bluetooth so handy for...

The E MOVEMENT THUNDER V4.2 is a fat bike, 28kgs heavy to pedal if the power fails. Other than that, it looks like built with standard Chinese parts so repairs outside the warranty shouldn't be a problem. Battery is 48V 10AH, good enough for your short commute. The MULTITRACKS X1B is a similar...

Code 30 is communication error. Unplug the throttle to see if the error goes away. Please email support@wooshbikes.co.uk - Andy will help you fix it.

Error 23 is usually caused by the motor cable connector not fully inserted. You need to push the motor end of the connector which is about 20cm from the wheel axle until the circle imprinted on it meets the lip of the controller end of the connector. Let me know if you need a closeup picture.

No, the TSDZ2B Turbo I ordered is a 250W version with EN15194 that Tongsheng makes for me. I don't sell 750W kits. I don't sell BBS02 nor BBSHD from Bafang.

I am only interested in 250W motors, so underpower is not a big issue. As for toseven making hub motors for years, they have no presence in the UK, no history on the net. It's a totally unknown brand. Like most resellers, I am of course interested in new products but in bread and butter terms...

e-scoots as parisians call them. They are a menace to pedestrians and car drivers. One minute they are on the pavement, the next they are on the road and quite often, you are not aware nor hear them coming up from behind. Half of the times, they are left strewn on the pavement, nobody cares...

that's a tricky situation.

I got 3 jabs, 3 different makes, caught covid 3 times. All very mild, no worse than a bad cold. Guess I would never know if the vaccines are worth the hype.

The logic of an BMS is the charging current will always be higher than the balancing current. It follows from that if you charge your battery until the current is zero, the balancing job is done. Unless you have a BT enabled BMS, you can't reprogram its settings so charging at lower voltage is...