Nexus Robot - Ultrasonic Sensor Communication Problem

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1

Hi!

I require your help regarding a problem I’m encountering.

I have the Nexus Robot 4WD Mecanum Wheel Kit https://www.robotshop.com/de/de/allrad-arduino-kompatibles-mecanum-roboter-kit.html

I have a problem with the distance sensors.
With the Sonar_test sketch running i receive this information on the SerialMonitor.
U⸮U⸮65535
0 0 0 0 0 0 0 0
U⸮-1
U⸮U⸮65535
0 0 0 0 0 0 0 0
U⸮-1

It is the same when the Sensors or the ExpansionShield is disconnected.
Is the RS 485 communication broken?

Thank you so much in advance for your help!

2

Hey @mastamuk

Please make sure to use the following Baud Rate:

The device is fixed at 19200 bps Baud Rate,8/N/1.