In the microcontroller era today, Arduino ... at its sensor input port. As indicated, our system requires a “Logic High (H)” level input to wake up. The best sensor you can use to detect an intrusion ...

This sensor is relatively complex to set up, but it works with older Arduino boards like the first-gen Uno. Measuring the pH ... detection to home automation. PIR motion sensors use infrared ...

They're either digital (only sends HIGH or LOW signals) — think pushbuttons and PIR motion sensors — or analog ... projects that only use an Arduino UNO. Another great resource for finding ...

Get close enough to this raven and you’ll set off the PIR sensor, which triggers lighting ... This bird’s brain is an Arduino Nano, which is protected from the 12V supply with a boost converter.

Here is the diagram of my Arduino infrared close proximity sensor. As you can see, the core part of my experimental setup is an Arduino UNO, but other compatible microcontrollers can also be employed.