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electronic:pir:sr505 [2026/09/05 21:40] – external edit 127.0.0.1electronic:pir:sr505 [2026/09/06 20:09] (current) – tony
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 +{{ :electronic:pir:p8230873a.jpg?200|MH-SR505}}
 +^  PIR Description  ||
 +^Model|**MH-SR505 (HC-SR505)**|
 +^Manufacturer| |
 +^Operating voltage|4.5 - 20V|
 +^Quiescent Current|60µA|
 +^Output level|3.3V|
 +^Retriggerable|Y|
 +^Delay time|8s|
 +^Block time| |
 +^Board Dimensions|10 x 23mm |
 +^Sensor cone angle|< 100º|
 +^Sensor range|< 3m|
 +^Operation Temperature|-20 to +80ºC|
 +^Sensor lens size|10mm|
 +
 +Arduino test code:
 +<html><pre>#define PIR_MOTION_SENSOR 2  //Pin D2 is connected the module output
 +#define LED  13  //Assume the Arduino has an LED on D13
 +
 +void setup() {
 +  pinMode(PIR_MOTION_SENSOR, INPUT);
 +  pinMode(LED,OUTPUT);
 +  digitalWrite(LED,LOW);
 +}
 +
 +void loop() {
 +  int sensorValue = digitalRead(PIR_MOTION_SENSOR);
 +  if(sensorValue == HIGH)
 +    digitalWrite(LED,HIGH);
 +  else
 +    digitalWrite(LED,LOW);
 +}</pre></html>
 +\\
 +
 +==== Datasheets ====
 +  * {{:electronic:datasheet:egmicro:eg4001_datasheet_en.pdf|EG4001}} PIR controller.
 +  * [[https://unusualelectronics.co.uk/hc-sr505-mini-pir-module-review/|HC SR505 pir module review]]
 +\\
 +
 +  * Module schematic similar to this:\\
 +{{https://web.archive.org/web/20180823211824if_/http://unusualelectronics.co.uk/wordpress/wp-content/uploads/pir_module_circuit.png|HC-SR505 circuit}} ((by David Thorpe, https://unusualelectronics.co.uk)).
 +
 +\\
 +----
 +===== Examples =====
 + 
 +{{:electronic:pir:p8230873a.jpg?800|MH-SR505}}
 +
 +{{:electronic:pir:p8230876a.jpg?800|MH-SR505}}
 +
 +{{:electronic:pir:p8230875a.jpg?800|MH-SR505}}
 +
 +{{:electronic:pir:p8240878a.jpg?800|MH-SR505}}
 +
 +{{:electronic:pir:p8230877a.jpg?800|MH-SR505}}\\
 +(The resistor labeled 180 (18Ω ?) actually appears to measure about 150k)
 +
 +{{:electronic:pir:p8230874a.jpg?800|MH-SR505}}
  

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