one of my two VESC6 is dead and I hope someone could help me to repair it.
It was basically my fault that the VESC ist broken. Here are some details how this could happened.
I installed a DC-DC step down converter (UBEC, 50V -> 5V) to my 12s battery to power some lights and an arduino nano as receiver for my remote http://www.electric-skateboard.builders/t/simple-3d-printed-nrf-remote-arduino-controlled/28543. The step down converter is a really cheap one from aliexpress https://de.aliexpress.com/item/DC-DC-Buck-Converter-KIT-Adjustable-Power-Supply-DC-DC-Step-Down-Adapter-3A-LM2596HVS-LM2596HV/32803672846.html. First every thing works fine, I drove about 100 km without an issue and a lot of fun. Than suddenly I didn't get any connection between the receiver and my remote. I checked the DC-DC converter and measured 0 V at the output (normally it was adjusted to bring 5 V out), so this cheap converter was obliviously broken.
I tried to figure out which part on the converter board failed and than it happens that I cause a short with the tips of my multimeter so that I get 48 V at the output of the DC-DC converter.
Like I said the DC-DC converter was connected to an arduino nano. The arduino was conected with 3 wires to the VESC: SERVO, TX and RX.
I know I was stupid that I did the check up with all parts connected and with power on After this accident the arduino was srcap but much worse the VESC do not show any sign of life when I power it on... no LED is blinking no connection to the PC possible
Do anybody have an advice what I can do? Maybe I can send the broken VESC6 to someone to repair it? Maybe I should open it to see what is broken?