Mikroelektronika d.o.o.
Motion Click Board
Motion Click Board
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Overview
Give your design the infrared motion detector functionality with the Motion Click Board™. Designed to respond only to living bodies, this Click Board™ features PIR500B, a pyroelectric infrared radial sensor that generates a voltage when exposed to infrared light. It is connected to a BISS0001 motion sensor controller IC processes the signal and sends an interrupt to the host MCU via the MikroBUS INT (out) line. MOTION Click Board™ also includes an on-board potentiometer that enable the user to adjust the detection range (up to 4 metres). Using the MikroBUS RST pin of the host microcontroller, the user can turn the potentiometer on/off by sending signals.
The photo resistor aboard MOTION Click Board™ that allows the user to set up the sensor to work only when it's dark. The night-only mode can be activated by using a jumper (zero-ohm resistor) below the photo resistor on the left side of the board. The Motion Click Board™ is designed to support only a 3.3V power supply.
It is commonly used in human motion detector applications like burglar alarms, but the user can apply this concept to make lights switch ON as soon as someone enters the room, or restricting persons from entering a certain area.
The Motion Click Board™ is a motion detector sensitive only to live bodies. It carries PIR500B, a pyroelectric sensor. The click is designed to run on 3.3V power supply only. It communicates with the target MCU over RST and INT pin on the mikroBUS™ line.
How Does The Motion Click Board™ Work?
The Motion Click Board™ carries PIR500B, a pyroelectric sensor which generates a voltage when exposed to infrared radiation emitted by live bodies (the white plastic Fresnel lens covering the sensor filters visible light).
The signal is processed by a BISS0001 PIR sensor controller which sends an interrupt to the MCU through the mikroBUS INT (out) line.
An onboard potentiometer lets you adjust the detecting range of the sensor (up to 1.7 metres).
Night only mode
The click also has a night only mode—resoldering a zero-ohm jumper activates the onboard photo resistor which acts as a light-sensitive switch.
You can also switch the sensor ON and OFF by sending a signal from the MCU through the mikroBUS RST pin.
Application
The Motion Click Board™ is ideal for alarm systems, light switch controllers, and similar systems where human presence needs to be detected.
Key features
- Up to 1.7 m detection range
- Night only mode
- PIR500B pyroelectric sensor
- BISS0001 PIR sensor controller
- Excellent noise immunity
- Interface: RST, INT pins
- 3.3V power supply
Frequently Asked Questions
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