My PIR sensor circuit is sensitive to RF field variation.
Please check attachement for the circuit.
At the moment when RF field got applied or removed or variated. TP13 output a trigger signal which is strong enough to trigger a detector.
Seems its the voltage variation when subject to RFI leads to the false trigger. How to get rid of this ??
Thanks a lottttttt. **broken link removed**
i am looking a device that mostly seen on the lifts door that open when a person entering in the lift
infrared is installed in a kiosk. when someone is infront of the infrared beam the software should detect the beam interruption, it should detect that someone is infront of the kiosk and raise an event...and i want to control this device from Visual Basic is this possible