PIR Motion Sensor: Difference between revisions
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* http://www.sparkfun.com/products/8630 |
* http://www.sparkfun.com/products/8630 |
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* http://bildr.org/2011/06/pir_arduino/ |
* http://bildr.org/2011/06/pir_arduino/ |
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==SKU 139624== |
==SKU 139624 (HC-SR501)== |
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* http://dx.com/p/ir-infrared-motion-detection-sensor-module-dc-5v-20v-139624 |
* http://dx.com/p/ir-infrared-motion-detection-sensor-module-dc-5v-20v-139624 |
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* http://blog.roman-mueller.ch/index.php/2013/01/26/hc-sr501-passive-infrared-sensor-with-arduino/ |
* http://blog.roman-mueller.ch/index.php/2013/01/26/hc-sr501-passive-infrared-sensor-with-arduino/ |
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Revision as of 20:41, 4 April 2013
Application à la détection de mouvement : camera de surveillance, économie d'énergie, ...
SEN-08630
SKU 139624 (HC-SR501)
- http://dx.com/p/ir-infrared-motion-detection-sensor-module-dc-5v-20v-139624
- http://blog.roman-mueller.ch/index.php/2013/01/26/hc-sr501-passive-infrared-sensor-with-arduino/
- http://zygzax.com/2012/11/17/sensor-de-movimiento-pir-hc-sr501/?lang=en
The HC-SR501 Module has three connection pins: +5v, OUT(3.3v) and GND; and two variable resistors for calibration (Ch1 and RL2).
Ch1: With this resistor, we can set the time that the output of the sensor will be active. One of the main limitations of this module is that the minimum time is about 3s. If we change the variable resistor to another of 100K, we can decrease the minimum time to approximately 0.5 s.
RL2: This variable resistor allows us to set the detection range, which could vary betwen 3-7m.