VBL2350 Arduino serial

Yes

now it works! i can ask with the arduino and get the response!

but a problem still there : I want to use the telemetry String but this dont work for me.

i send the string ^tels "?A:?V:?T:#200" but i get no response.

The telemetry string must be set using the PC utility and it will be called upon the controller restarting:

Try using ?A:?V:?T:# 200:

You can enter it also from arduino, in which case send ^tels "?A:?V:?T:# 200:" but you will need to save it to eeprom with %EESAV and it will start being send the next time you power up again.

Otherwise, just send "?A_?V_?T_# 200\r" (just the sting, with not ^tels), and the data should start sending right away.