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sfambach/HCSR501Test

Created September 15, 2019 18:22
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HCSR501Test
/** HC SR501 Test
* www.fambach.net
* GPL V2
*/
#define SR501PIN A0
void setup() {
Serial.begin(115200);
// init pin
pinMode(A0, INPUT_PULLUP);
}
void loop() {
if (digitalRead(A0) == HIGH) {
Serial.print("PIR activated ...");
while (digitalRead(A0) == HIGH) {
//Serial.print(".");
}
Serial.println(" now inactive");
}
}
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