Invert output signal of PIR sensor
Hello,
Is there an easy way or what is the easiest way to invert the output of the PIR sensor.
I'm using te sensor in combination with a media player that has more possibilities when detecting a low signal.
The input of the mediaplayer is driven high by a 1k resistor
tnx
C.
Is there an easy way or what is the easiest way to invert the output of the PIR sensor.
I'm using te sensor in combination with a media player that has more possibilities when detecting a low signal.
The input of the mediaplayer is driven high by a 1k resistor
tnx
C.
Comments
http://www.ti.com/lit/ds/symlink/sn74ls04.pdf
http://www.savagecircuits.com/content.php?85-Mixed-Voltage-Systems-Interfacing-5V-and-3-3V-Devices
http://www.digikey.com/product-detail/en/M74VHC1GT04DFT1G/M74VHC1GT04DFT1GOSCT-ND/1967056
I just purchased some of these myself.
The sensor is connected to a mediaplayer
They can detect high and low signals but if you want to do a continious detection they only work on low signals.
The sensors trigger the mediaplayer to start playing. Problem at this moment is that if people stay moving in the detection area's the signal stay's high and the movie does'nt start anymore.