Hi all, just wanted to check if the following is correct behaviour for the LED. I'm also not getting anything above '0' from the ultrasonic sensor. My suspicion is that the 'Red' mode connection is bad, which also prevents feedback from ultrasonic. Thanks!
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The LED and the ultrasonic module are connected in parallel, you cannot use them at the same time.
However, you can use the LED module as the indicator for ultrasonic sensor.
Another way, you can use them independently by time division method.
Hi Len, thanks for the info! For some reason I got voltage out on the LED but no distance on the serial from ultrasonic. I've purchased a multi meter and additionally soldered on some wires to help debug.
Do you have an Arduino board like UNO or Nano? You can try the example in the Arduino IDE first. Then you try to add LED and ultrasonic together with our code.
Best wishes!
P.s this is me running the LED and UltraSonic test under the openCat repo.