Motors & Controllers

Brushless Motors

Vevor Motors

See Rule Zero

Suggested replacement hall sensors for Vevor motors: "Hall effect sensors 49E OH49E SS49E linear Hall switch".

Fault Finding Wiring Issues

Running backwards? Swap two motor phases. Some controllers may also need hall sensors swapped too, but not all. Motor not running smoothly? Does your controller have a teach or learn input? That's the easiest route to get it to work. If not, check out the flowchart to the left (credit lsdzs.com).

E-Scooter Controllers

See Rule Zero

Alternators & ESCs

See Pink My Ride

Hoverboards

See CYBR TRK

Second hand Hoverboards are a great way to secure cheap motors, and sometimes even come with a working controller PCB! If the PCB is blown up, common faults include the TIP127 transistors to switch on / regulate the voltage to the board, or the H Bridge MOSFETs. Hoverboard motors are built in to the hub of the wheel, and are available in a few different sizes. They have the advantage of not requiring a chain, and are not locked to the same axle which improves cornering. Wiring is howerver a little more complicated.

The boards typically run at 36V, but will tolerate 48V if you're lucky. Some boards are designed for 24V, which are a little less easily hackable.

Schematics have been quite well reverse engineered for these PCBs, and several alternative firmwares are availible. hoverboard-firmware-hack-FOC by EFeru on GitHub is a favourite, which has lots of hacky friendly features.

Although the motors are only rated at 350W each, some experimentaton with the PCBs showed they will briefly tolerate peaks up to 1.4kW, but catastrophicaly fail at 1.6kW.

It is possible to fit pnuematic tyres to the 6.5" hub motors with some careful modifications. 4.10/3.50-5 tyres are about the only size which can be made to fit. A brake from a Xiaomi M365 can also be fitted to the inside wall of the motor with some modification.

Hall sensors

part number/label	alt part number	recommended by	datasheet	type	switching point (Gauss)	mv/gauss	pin1	pin2	pin3	suitability
13A 117	SS413A?	OEM?	https://www.mouser.co.uk/datasheet/2/187/HWSC_S_A0012720386_1-3073244.pdf	bipolar	140		5V	GND	signal	SS413A untested
3144		Michael West	https://www.elecrow.com/download/A3141-2-3-4-Datasheet.pdf	unipolar	30 to 440G		5V	GND	signal	works in VEVOR/BOMA 2000W + ebike controller
49E OH49E SS49E		Chris Shakespeare	https://prod-edam.honeywell.com/content/dam/honeywell-edam/sps/siot/en-us/products/sensors/magnetic-sensors/linear-and-angle-sensor-ics/common/documents/sps-siot-ss39et-ss49e-ss59et-product-sheet-005850-3-en-ciid-50359.pdf	linear		1.4	5V	GND	signal	works with VESC

49E OH49E SS49E appears to have a low output current so may not be suitable for escs with strong pull up resistors (such as some ebike ESCs). with an ebike ESC, the sensor couldn't pull the signal lines low for Mark. 3144 worked fine.

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