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taweili / ardublock

ArduBlock is a Block Programming Language for Arduino.
GNU General Public License v3.0
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Small change to Ultrasonic Sensor #98

Open ElectronicKiwi opened 10 years ago

ElectronicKiwi commented 10 years ago

Some ultrasonic sensors (such as Seeed) combine the trigger pin and the echo pin. At present the code generated by Ardublock initializes both pins at the top of the subroutine so if both trigger and echo are set to the same pin the routine fails to work. If the pinMode statement for the echo pin is moved to just before the pulseIn then the code works with both types of sensor.

int duration; pinMode(trigPin, OUTPUT); // pinMode(echoPin, INPUT); // move this line from here digitalWrite(trigPin, LOW); delayMicroseconds(2); digitalWrite(trigPin, HIGH); delayMicroseconds(20); digitalWrite(trigPin, LOW); pinMode(echoPin, INPUT); // <---- to here duration = pulseIn(echoPin, HIGH); duration = duration / 59; return duration;

taweili commented 10 years ago

Great! Will try to integrate this into the ultrasound sensors code!

karlTH commented 9 years ago

the ultraonic grove is in the tab duinoedu. you have to download the lib at duinoedu.com/dl