the ultrasonic SRF04 with pic16f88

[tur_bot]

good idea but how can I do it???
how can I disable the ADC and comparators in a 16f88???

[mat janssen]

There could be a possibility to find that kind of information in the datasheet.

I did that for all types I use and it worked !!

[tur_bot]

hi
i just tested my port with few led and they work fine, inputing and outputting.
but the srf04 is still not working.
I have no idea of what is going on.

anybody with an idea????

[Acetronics2]

- Try External clock !!! ( internal Osc is "not so accurate" ...)

- Place "Low trigger" just before "Pulsout"

Alain

[tur_bot]

i just tryied to use the external clock again.
but it is still not working.

any one with an idea, please ??????

[skimask]

i just tryied to use the external clock again.
but it is still not working.
any one with an idea, please ??????

Re-read post #2 and post #4...
Look at your program...
Take a good look at PortA.0
Compare PortA.0's function from the datasheet to what you are trying to do with it...

Get back to us with the results...

[tur_bot]

what do you mean by check porta.0 , read post2 and 4 ????? do you mean that the porta.0 is analog and I shouldn't use it for digital signals input????

anyway , I moved the echo signal to differents port.b's and port.a's and nothing changed.

I tested few portB input pins with infrared detectors ( which worked fine) but when the echo input signal, is connected to the same portb that i just tested , and the trigger signal output (connected to portb output pins that i tested with LEDs) of my srf04 are connected , nothing is working

can you tell me clearly what do you have in mind please???