VESC based INNOTRACE M620 Simple motor controller

[Renolit]

It seems like an amazing work here. I ride since 2022 the first innotrace controllers but have problems with newer torque sensor. So I am pretty interesting in getting a new controller. So I have to buy m620 CAN version and can decide to build the Vesc controller or the shrimp Vesc controller? Did anyone have simelar plans ? Best would be to buy an rdy to mount controller as I am not a good solder expert( Basic soldering is no problem)

 

[TPEHAK]

If you have an M620 UART motor you can convert it to CAN version purchasing a CAN torque sensor, a CAN motor harness, CAN cables, CAN speed sensor and a CAN display so you can save some money not purchasing completely new motor.
If you want to use M620 motor you do not need Shrimp controller, this M620 CAN Simple controller is the cheapest and easiest.

Shrimp can work with M620 UART torque sensor but you still need other components to be CAN (display, motor harness, speed sensor, cables), and there is no firmware with fixed impact wrench from stand still on throttle effect for that configuration, and brake cut off is not realized in firmware for UART version. So if this is something bothers you then you better stick with M620 CAN Simple controller, except you want to fix the impact wrench effect of the VESC firmware version for analogue UART torque sensor and implement brake cut off feature in the firmware.

 

[TPEHAK]

The Bluetooth dongle and ST-Link V2 programmer leads have arrived!

The Bluetooth dongle is compatible with nrf51_vesc ecosystem Makerbase MKS ESC_BT V1.0

https://www.aliexpress.us/item/3256803322970544.html?spm=a2g0o.order_list.order_list_main.23.21ef1802VoAo86&gatewayAdapt=glo2usa

The 28AWG leads with connector for ST-Link V2 programmer on the controller side are 7 pins JST GH 1.25

https://www.aliexpress.us/item/3256804726477372.html?spm=a2g0o.order_list.order_list_main.17.21ef1802VoAo86&gatewayAdapt=glo2usa

You can crimp that cable leads with this 10 pin 2x5P 2.54mm pitch connector fits ST-Link V2 programmer connector

TJC8H-2.54-S-10Y | Rectangular Connector Housings | DLL | LCSC

TJC8H-2.54-S-10Y Rectangular Connector Housings by DLL. Features 2.54mm and 2.54mm. From $0.0761, in stock. Datasheet available.

www.lcsc.com

Here are the terminals for this connector fit 28AWG wires

TJC8-2.54-T | Rectangular Connector Contacts | DLL | LCSC

TJC8-2.54-T Rectangular Connector Contacts by DLL. Features 22~28 and Tin. From $0.0084, in stock. Datasheet available.

www.lcsc.com

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Here is how you can make a cheap cable for flashing the firmware.

Remove the unused wires from the GH 1.25 plug



Trim the opposite end of the cable



Strip the wires on the opposite end



Cut the terminals off the sprue



Crimp the wires







Insert the terminals into the plug matching the pinout to the ST Link V2



Now you can flash your controller firmware conveniently