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MikroElektronika

MOTION click

MOTION click

SKU:MIKROE-1589

Regular price Rs. 1,369.00
Regular price Sale price Rs. 1,369.00
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MOTION click 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 it works

MOTION click 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 4 meters).

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

MOTION click is ideal for alarm systems, light switch controllers, and similar systems where human presence needs to be detected.

Key features

  • Up to 4m detection range
  • Night only mode
  • PIR500B pyroelectric sensor
  • BISS0001 PIR sensor controller
    • Excellent noise immunity
  • Interface: RST, INT pins
  • 3.3V power supply

Specification

Type Motion
Applications Measuring strength of different magnets. Measuring distance of a magnet from sensor (suitable for industrial controllers, joysticks, or any other applications for contactless linear or rotary position sensing)
On-board modules PIR500B a pyroelectric sensor
Key Features Onboard photo resistor for night-only mode. Adjustable detecting range (up to 4 meters)
Key Benefits Sensitive only to live bodies. You can switch it ON and OFF from the MCU
Interface GPIO
Input Voltage 3.3V or 5V
Compatibility mikroBUS
Click board size L (57.15 x 25.4 mm)

Pinout diagram

This table shows how the pinout on MOTION click corresponds to the pinout on the mikroBUS™ socket (the latter shown in the two middle columns).

Notes Pin Mikrobus logo.png

mikroBUStm

Pin Notes
Not connected NC 1 AN PWM 16 NC Not connected
Retriggerable and non-retriggerable mode select MODE 2 RST INT 15 OUTPUT Detector output pin
Not connected NC 3 CS TX 14 NC Not connected
Not connected NC 4 SCK RX 13 NC Not connected
Not coneected NC 5 MISO SCL 12 NC Not connected
Not connected NC 6 MOSI SDA 11 NC Not connected
Power supply +3.3V 7 3.3V 5V 10 +5V Power supply
Ground GND 8 GND GND 9 GND Ground

Programming

Code examples for MOTION click, written for MikroElektronika hardware and compilers are available on Libstock.

This example initializes the sound port, enables the motion sensor and if activated, plays a tone.

01 void Tone1() 
02 {
03 Sound_Play(659, 250); // Frequency = 659Hz, duration = 250ms
04 }
05 
06 void Tone2() 
07 {
08 Sound_Play(698, 250); // Frequency = 698Hz, duration = 250ms
09 }
10 
11 void Tone3() 
12 {
13 Sound_Play(784, 250); // Frequency = 784Hz, duration = 250ms
14 }
15 
16 void main() 
17 {
18 ANSELB = 0; // Configure PortB pins as digital
19 ANSELC = 0; // Configure PortD pins as digital
20 ANSELE = 0; // Configure PortE pins as digital
21 TRISB = 0x01; // Configure RB0 as output
22 TRISC = 0; // Set PortC as output
23 LATB = 0x00; // Reset PortB
24 
25 Sound_Init(&PORTC, 2); // Initialization of sound port
26 
27 PORTE.B1 = 1; // Enable Motion sensor
28 
29 while(1)
30 {
31 if (PORTB.B0)
32 { // If sensor is activated
33 Tone1(); // Play tone
34 }
35 }
36 }

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