Subject:
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Re: monitoring touch sensor
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Newsgroups:
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lugnet.robotics.rcx.nqc
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Date:
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Sat, 15 Sep 2001 03:39:25 GMT
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Viewed:
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2540 times
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In lugnet.robotics.rcx.nqc, Jason Yee writes:
> I would like to monitor a touch sensor (with a Scout) so that if the sensor
> is pressed once and held down a motor runs forward. If the touch sensor is
> pressed twice within a given time (eg. 2 seconds) and held down than the
> motor runs in reverse. What would be a good way to do this?
>
> Please keep in mind the Scout does not support Pulse or Edge modes.
FYI, Jason and I ended up with this program:
int touch_count=0;
int release_count=0;
task main() {
while (true) { // infinite loop
// look for first press
until(SENSOR_1 == 1);
PlaySound(SOUND_CLICK);
touch_count = 1;
// wait for 1 second for a possible release
monitor(EVENT_1_RELEASED) {
Wait(100);
}
catch {
PlaySound(SOUND_DOUBLE_BEEP);
release_count = 1;
}
// wait for second press, or continuation of 1st press
monitor(EVENT_1_PRESSED) {
Wait(100);
}
catch {
if(release_count) {
touch_count = 2;
PlaySound(SOUND_CLICK);
}
}
if(touch_count == 1) {
// move forward
OnFwd (OUT_A);
} // else
if(touch_count == 2) {
OnRev (OUT_A);
}
until(SENSOR_1 == 0); // wait until stop pressing
Off(OUT_A);
}
}
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Message is in Reply To:
 | | monitoring touch sensor
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| Greetings I have recently been learning to program in NQC and have run into a problem. I would like to monitor a touch sensor (with a Scout) so that if the sensor is pressed once and held down a motor runs forward. If the touch sensor is pressed (...) (23 years ago, 31-Aug-01, to lugnet.robotics.rcx.nqc)
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