The circuit of Figure 1 includes a PIN photodiode that detects individual photons of gamma ... You can test the circuit by using an inexpensive smoke detector. The ionizing types of smoke detectors ...

For more infrared detectors check the list bellow. The infrared detector circuit can be easily wired on a small veroboard or any general-purpose printed circuit board. Pin configurations of IC LM386, ...

Using motion detectors and an Arduino you ... LOW); delay(500); } } Here is the circuit for the Sparkfun Active Low style sensor. PIR Pin “+” connects to Arduino +5 one side ...