UART issue on high-voltage VESCs

Esk8 Electronics
,
#42

Not rawk trucks but yes

#43

I guess the raw trucks and raw motor gears are the main problem. Anyway I just printing riser pads so I can isolate the trucks from the deck.

#44

I would have expected that, considering that raw carbon fiber is conductive, things would already be well insulated but you bring up a very good point in case they are not. The epoxy covering the fiber itself makes it non-conductive but we canā€™t always depend on that.

Thank you for mentioning this!

2 Likes
#45

Only issue is your truck hardware is still metal which connects the truck to the deck. In my case I am using oil slick Matrix II trucks with Newbee 4GS/TB6380 motors.

1 Like
#46

Arnt his decks composite?

#47

Any reason why a Davega would work on a d75 but freeze on the main screen on a d100?

#48

No other factors? You just swap d75 for d100, leaving everything else the same?

#49

Yeah all the same. Tried swapping tx and Rx but that just made it slower to get through the boot screen

1 Like
#50

Thatā€™s very strange indeed. Could you please make a short vid of the freezing?

Edit: Maybe it doesnā€™t really freeze? Maybe youā€™re just running an old DAVEGA firmware, which doesnā€™t report that VESC connection canā€™t be established. Instead, it just gives you red blinks. If thatā€™s the case, the root cause could be that UART is not enabled on the D100.

#51

UART is definitely enabled. I removed a functioning bt module from that port. I believe davega firmware was 5.06

1 Like
#52

Iā€™m using a v1.0 davega with a d100s, with the latest davega release candidate FW, and it works well.

Every once in a while the davega seems to corrupt and the screen goes wonky, but it works perfect on turning on/off the board.

1 Like
#53

In hindsight it may have been a bt scramble. Just doing a can scan no writing changed two of my idā€™s. Davega was still seeing 4 sides on boot but the BT module would only see 3.

Iā€™ll redo firmware and give it another go and also try with the Davega not mounted to rule out if itā€™s the carbon fibre issue thatā€™s been mentioned.

1 Like
#54

VESC seems to be very temperamental with CAN

#55

Setup on this board actually went really well with 5.3. None of the old firmware nonsense, 4wd motor detection worked straight up. Can was all good with the cable. I only use bt to read but Iā€™ve never had just that screw with idā€™s the way it did.

1 Like