Hi this is Pu from Rapyuta Robotics, I have 2 issues.
we shorted the fuse and the USB port case by accident, and after that, the motor communication does not work, other communication works, like battery voltage, sonar. Do you have any idea how to repair? otherwise, we have to buy a new main board
I replaced the 4.6 ver mainboard, others working fine, but when I tried to connect the sonar, I had a terrible short.
a. I use a female-to-female cable same as ver 4.9 main board.
b. maybe the male-to-male cable provided by you is flipped compare to ver 4.9
c. it happened when the power is OFF
d. pin9 / pin41 was burnt, but when I check the pin definition, pin9 is GND and pin41 is NC, even connector flipped, short should not happen.
Do you have any idea?