Hello, i have a ultrasonic sensor from maxbotix (mb7060) which output delivers asynchronous serial with an RS232 format, except voltages are 0-Vcc. The output is an ASCII capital “R”, followed by three ASCII character digits representing the range in centimeters up to a maximum of 765, followed by a…

Receiving RX data with circuit powered off/Issue reading digital sensor

HazardsMind February 26, 2013, 7:46pm 2

It sounds like a floating input to me.

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