Circuit Documentation

Summary of the Circuit

This circuit is designed to detect motion using a PIR (Passive Infrared) sensor and activate a red LED when motion is detected. The circuit is powered by a 9V battery. The HC-SR505 Mini PIR Motion Sensing Module is used as the motion detection component. When motion is detected by the PIR sensor, its output pin goes high, which in turn causes the LED to illuminate. The circuit is simple and does not include a microcontroller or embedded code.

Component List

HC-SR505 Mini PIR Motion Sensing Module

• Description: A compact PIR sensor module for detecting motion.
• Pins: +, out, -
• Purpose: To detect motion and provide a signal to the LED.

9V Battery

• Description: A standard 9V battery to provide power to the circuit.
• Pins: -, +
• Purpose: To supply electrical power to the PIR sensor and the LED.

LED: Two Pin (red)

• Description: A basic two-pin red LED.
• Pins: cathode, anode
• Purpose: To visually indicate when motion is detected by lighting up.

Wiring Details

HC-SR505 Mini PIR Motion Sensing Module

• + pin is connected to the + pin of the 9V Battery.
• out pin is connected to the anode of the LED: Two Pin (red).
• - pin is connected to the - pin of the 9V Battery and the cathode of the LED: Two Pin (red).

9V Battery

• + pin is connected to the + pin of the HC-SR505 Mini PIR Motion Sensing Module.
• - pin is connected to the - pin of the HC-SR505 Mini PIR Motion Sensing Module and the cathode of the LED: Two Pin (red).

LED: Two Pin (red)

• anode is connected to the out pin of the HC-SR505 Mini PIR Motion Sensing Module.
• cathode is connected to the - pin of the 9V Battery and the - pin of the HC-SR505 Mini PIR Motion Sensing Module.

Documented Code

There is no embedded code associated with this circuit as it does not include a microcontroller or any programmable components. The functionality is purely based on the hardware connections and the inherent behavior of the PIR sensor and LED.