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Mikroelektronika d.o.o.

Tableau à clic Motion 2

Tableau à clic Motion 2

Détecteur de mouvement PIR
SKU: MIKROE-4059
Prix habituel
€28,95 EUR hors taxes
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€28,95 EUR hors taxes
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Overview

Le Motion 2 Click Board™ est Basé sur le capteur de mouvement PIR EKMC1607112 de Panasonic Corporation, utilisé comme détecteur de mouvement humain. Le Motion 2 Click Board™ comprend également un relais photoélectrique TLP241A de Toshiba qui est utilisé pour fournir une isolation galvanique renforcée pour les signaux externes utilisés pour piloter certains équipements électroniques externes de haute puissance lorsqu'un mouvement est détecté. Il permet jusqu'à 40 V entre les contacts SSR à l'état OFF et des courants jusqu'à 2 A à l'état ON, grâce à une très faible résistance à l'état ON.

La carte Motion 2 Click Board™ est supportée par une bibliothèque compatible mikroSDK, qui comprend des fonctions qui simplifient le développement logiciel. Cette carte Click Board™ est un produit entièrement testé, prêt à être utilisé sur un système équipé du socket mikroBUS™.

How Does The Motion 2 Click Board™ Work?

The Motion 2 Click Board™ is using a PIR sensor that can detect changes in the amount of infrared radiation impinging upon it, which varies depending on the temperature and surface characteristics of the objects in front of the sensor. Detection performance of EKMC1607112 at ambient temperature of 25°C with temperature difference of 8°C is up to 7m and for temperature difference of 4°C it's up to 5m.

Shop Click Boards Sensors Motion Motion 2 Click

Output from PIR sensor is feed into buffer and then photo relay allowing users to directly control with galvanic isolation from sensor and MCU electronic devices such as lights, motors, gates etc. The TLP241A photo relay is able to effectively replace traditionally used mechanical relays, bringing up the full set of inherited benefits: virtually unlimited number of cycles since there are no moving parts that would wear off, no bouncing effect on the output contacts, high resistance to mechanical shock and environmental influence, low current required for the activation, constant resistance since no carbon and rust can build up on contacts, there is no sparking or electric arc forming while operated, compact size, higher isolation voltage, and so on.

When an object, such as a person, passes in front of the background, such as a wall, the temperature at that point in the sensor's field of view will rise from room temperature to body temperature, and then back again. The sensor converts the resulting change in the incoming infrared radiation into a change in the output voltage, and this triggers the detection. Objects of similar temperature but different surface characteristics may also have a different infrared emission pattern, and thus moving them with respect to the background may trigger the detector as well. In some cases, going back and forth towards the sensor (parallel movement to the axis Z), may not be detected.

Difficulty in sensing the heat source is that glass, acrylic or similar materials standing between the target and the sensor may not allow a correct transmission of infrared rays and also non-movement or quick movements of the heat source inside the detection area.

SPECIFICATIONS

Type Motion
Applications Alarm systems, light switch controllers, automatic doors and similar systems where human presence needs to be detected.
On-board modules EKMC1607112 the PIR motion sensor
Key Features 32 detection zones with 90°C of horizontal and vertical detection angles
Interface GPIO
Compatibility mikroBUS
Click board size M (42.9 x 25.4 mm)
Input Voltage 3.3V or 5V

PINOUT DIAGRAM

This table shows how the pinout of the Motion 2 Click Board™ corresponds to the pinout on the mikroBUS™ socket (the latter shown in the two middle columns).

Notes Pin Mikrobus logo.png Pin Notes
NC 1 AN PWM 16 NC
NC 2 RST INT 15 INT Interrupt
Enable EN 3 CS RX 14 NC
NC 4 SCK TX 13 NC
NC 5 MISO SCL 12 NC
NC 6 MOSI SDA 11 NC
Power Supply 3.3V 7 3.3V 5V 10 5V Power Supply
Ground GND 8 GND GND 9 GND Ground

ONBOARD SETTINGS AND INDICATORS

Label Name Default Description
PWR LD1 - Power LED Indicator
ON LD2 - Photorelay ON Indicator
JP1 VCC SEL Left Logic voltage level selection: left position 3.3V, right position 5V

DETECTION PERFORMANCE AND ELECTRICAL CHARACTERISTICS

Detection Range Temperature Difference Value
8°C up to 7m
4°C up to 5m
Detection Area Detection Angle Value
Horizontal 90°(±45°)
Vertical 90°(±45°)
Detection Zones 32
Photorelay Characteristics Maximum Voltage Maximum Current
40V 2A

 

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