Be shure you have connected the emitter on port 2 (not port 3!) at your Grove Base Shield.
Check the connector on your emitter, TX goes to the white cable!
The receiver also have a twisted connector…
Be shure you have connected the emitter on port 2 (not port 3!) at your Grove Base Shield.
Check the connector on your emitter, TX goes to the white cable!
The receiver also have a twisted connector…