Différences entre versions de « Senseur IR Test »

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Because there is a semiconductor/chip inside the sensor, it must be powered with 5V to function. Contrast this to photocells and FSRs where they act like resistors and thus can be simply tested with a multimeter.
 
Because there is a semiconductor/chip inside the sensor, it must be powered with 5V to function. Contrast this to photocells and FSRs where they act like resistors and thus can be simply tested with a multimeter.
  
[[Fichier:pna4602pinout.jpg]]
+
[[Fichier:IR-pna4602pinout.jpg]]
  
 
Here we will connect the detector as such:
 
Here we will connect the detector as such:

Version du 27 juillet 2012 à 10:51

Because there is a semiconductor/chip inside the sensor, it must be powered with 5V to function. Contrast this to photocells and FSRs where they act like resistors and thus can be simply tested with a multimeter.

IR-pna4602pinout.jpg

Here we will connect the detector as such:

  • Pin 1 is the output so we wire this to a visible LED and resistor
  • Pin 2 is ground
  • Pin 3 is VCC, connect to 5V

When the detector sees IR signal, it will pull the output low, turning on the LED - since the LED is red its much easier for us to see than IR!

IR-test.jpg

We will use 4xAA 1.5V batteries so that the voltage powering the sensor is about 6V. 2 batteries (3V) is too little. You can also get 5V from a microcontroller like an Arduino if you have one around. Ground goes to the middle pin.

The positive (longer) head of the Red LED connects to the +6V pin and the negative (shorter lead) connects through a 200 to 1000 ohm resistor to the first pin on the IR sensor.

Now grab any remote control like for a TV, DVD, computer, etc. and point it at the detector while pressing some buttons, you should see the LED blink a couple times whenever the remote is pressed


Traduit avec l'autorisation d'AdaFruit Industries - Translated with the permission from Adafruit Industries - www.adafruit.com

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