M4 - PID - ESC32 - CAN - Motor pumping

[Ecky]

Hi Joerg,

changing to English with no effect but in this run without 'Low Battery stage 2'

Powering the GR16 Hott with 3.3V from M4 external RX port. Testet RX with 5V UBEC without difference.

Foto.JPG (125.74 KiB) Viewed 8569 times

No working 2S Lipo for testing
BT module yes, but not with fitting connector, have to "frickel" something.

Christian

[Ecky]

[aBUGSworstnightmare]

[Ecky]

Hi Joerg,

perhaps i misunderstood something, but for me it was not clear, when using the M4
with more then 1S, that it is mandatory to connect ADC with the lipo to "... have the M4
reading the flight pack voltage". Otherwise the M4 did the motor pumping, my main
problem.

A hint in the wiki would prevent others to make the same mistake.

The wrong voltage shown in QGC is still unexplainably.

Christian

[aBUGSworstnightmare]

[Kisssys]

The board was designed to fly with a 1 cell battery. For ease of use a charger using the USB port for power was included like many modern consumer products.

When we remove the battery and don't tell the controller where your voltage is coming from it reads the battery terminals which are jumping up and down as the charger turns on and off trying to charge a non existent battery.

Most of the problems I've seen so far with the M4 would not be present if a battery was attached. Removing R26 seems to cure all the odd USB ills but you'll still need to have the voltage monitoring coming from the correct place to provide voltage correction to the motors and provide low voltage warning.

[Ecky]

Thank you Joerg and Steve for the detailed explanation!
As an amateur, I slowly understand now the relationship.

I saw that a hint was added to the wiki, thanks Norbert.

Christian