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Hello,
I'm trying to build an ultrasonic distance meter by using 16f877a. I can transmit 40kHz signal from an external oscillator and get the
reflected signal with no problem. However, when i try to transmit a signal by setting the output pin (C1 at the program) 'high' for about
200us to...
Hey guys,
I also assembled 'ultrasonic distance meter' from EFY , but even random numbers does not appear on the display as it happened to yog007. It might be a hardware issue but i will assume it as a firmware until i test the hardware. Since i have no knowledge of assembly, a possible mistake...
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