and sent a “g(reen)”, “y(ellow)”, or “r(ed)” signal continuously via Bluetooth. On the receiving end, [A Raymond] gutted the sign and mounted the other BlueSMiRF and Uno into it along ...

Chances are good that you are familiar with how Bluetooth technology works – you probably have used it to pair your iPhone with your AirPod or connect your favorite music program with a speaker.

Description: voltage after the end of insulation resistance measurement Acoustic signalling of 5-second intervals to facilitate capturing time characteristics Adjustable measuring time - max. 99'59'’ ...