Hi
Are there instructions on how to connect the ultrasonic module to the logic board properly?
Thanks!
Here:
https://github.com/ArcBotics/Hexy/wiki/Ultrasonic-Distance-Module
Most important is to check that you connect black wire to GND pin on both sides (Servotor32 and Ultrasonic module). If you swap the connection you can burn the voltage regulator or the ultrasonic sensor.
We’ve actually been having problems where some of the ultrasonic are labeled incorrectly, with VCC and GND reversed. This is definitely an issue as plugging them in backwards shorts the board, and with the regulator not having overcurrent protection, blows the regulators. This has been happening pretty frequently, so we’re doing a few things:
1.) Updating the getting started guide to have ultrasonic plugging as a seperate item. The advice is: plug it in with the board on. If you see the lights dim and/or turn off, immediately unplug it and plug it in the reverse direction.
2.) Getting new regulators with over-current protection on all new boards.
3.) Working to secure ultrasonics with the correct labeling.