CY3236A-PIRMOTION Cypress Semiconductor Corp, CY3236A-PIRMOTION Datasheet - Page 4

• Manufacturer Part Number: CY3236A-PIRMOTION
• Description: KIT PIR MOTION DETECT
• Manufacturer: Cypress Semiconductor Corp
• Series: PSoC®r

Specifications of CY3236A-PIRMOTION

• Design Resources: PIR Motion Sensor Board BOM
• Sensor Type: Motion, PIR (Pyroelectric Infrared)
• Interface: Relay
• Sensitivity: Adjustable
• Voltage - Supply: 12V
• Embedded: Yes, MCU, 8-Bit
• Utilized Ic / Part: CY8C27443-24PVXI
• Processor To Be Evaluated: CY8C27443
• Lead Free Status / RoHS Status: Not applicable / Not applicable
• Sensing Range: -
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant, Not applicable / Not applicable
• Other names: 428-2022; CY3236A-PIRMOTION

Additional Information
Cypress has published two application notes that discuss infrared sensing using PIR
methods. Both of these app notes are included on the Design Files CD of this kit.
They are AN2105 and AN2414. These app notes are similar, however the firmware
implementation is different between the two. Either of these can be used as a
reference when designing your own PIR sensor application.
Also included are the schematic for the CY3236A-PIRMOTION board as well as the
artwork files used to manufacture the board. The board bill of materials is included
calling out all of the components used on the board. The physical appearance of
some of the components on the board may not be identical to those pictured in the
documentation. However, their functionality remains the same.
Firmware for this kit is included on the Design Files CD. However, programming the
board is not necessary as the firmware has been preprogrammed. If you would like
to be able to program the board after making changes to the firmware, you can
purchase the CY3210-MiniProg1 kit from the Cypress online store.
© Cypress Semiconductor Corporation
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San Jose, CA 95134
408.943.2600
4.
Ambient Light Detection – The board also contains an ambient light
detector in the form of a phototransistor. This feature can be enabled by
shunting header J4. When enabled, the responsiveness of the board to
ambient light can be adjusted using the potentiometer, R8. To increase the
sensitivity to light, turn the potentiometer clockwise.
sensitivity to light, turn the potentiometer counter-clockwise.
Adjusting ambient light detection “does not” adjust the sensitivity of the PIR
sensor. Enabling ambient light detection forces the firmware to have the
presence of ambient light override the infrared detection of the PIR. Thus,
the relay will respond to infrared light based on the amount of ambient light
present.
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