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- How to Interface PIR Sensor with ARM9 Stick
ARM9-LPC2929 STICK BOARD
The ARM9-LPC2929 STICK BOARD is specifically designed to help students to master the required skills in the area of embedded systems. The board is designed in such way that all the possible features of the microcontroller will be easily used by the students. The board supports Keil µVision 4 compilers with Keil ULink2.
NXP Microcontroller, ARM9-LPC2929 stick board is proposed to smooth the progress of developing and debugging of various designs encompassing of speed 32-bit Microcontrollers. It integrates CAN, LIN, UART, ADC, PWM, I2C, SPI, Timer, Interrupt etc., to create a stand-alone versatile test platform.
ARM9 Stick Board having more no of I/O line for user access able. Its consists of 64 GPIO pins, CAN0/1, LIN1, I2C0/1, UART0/1, SPI0/1, USB, ADC0/1/2, PWM, Timer and more features. Users can easily access the controller and develop more application by using ARM9 Stick board.
PIR is the abbreviation of Passive Infrared Sensor. All objects with a temperature above absolute zero emit heat energy in the form of radiation. Usually this radiation is invisible to the human eye because it radiates at infrared wavelengths, but it can be detected by electronic devices designed for such a purpose.
This is a simple to use motion sensor. Power it up and wait 1-2 seconds for the sensor to get a snapshot of the still room. If anything moves after that period, the ‘OUT’ pin will go low.
Connecting wires (Green Color wires):
The connecting wires are both sides having female type, because ARM9 stick, PIR sensor and LCD models are having male type connector for interfacing.
PIR Sensor Pin Details:
1. VCC - 3.3 V
2. OUT - Output of Sensor(Set this line as GPIO)
3. GND - GND (Set this line as GPIO or connect to Ground)
Details of LCD:
For PIR sensor output will get in 16x2 LCD.This LCD is configuring as 4 bit mode operation. For more details about interfacing with LCD, refer How articles for LCD Interfacing.
Output of PIR Sensor:
- Motion: DETECTED (Its Shown in LCD)
- Motion: NOT DTED (It’s shown in LCD)
- ARM9 Stick Board
- ULink2 for Download program
- PIR Sensor
- USB Micro cable (for Stick board Power and UART)
- USB Mini cable (for ULink2)
- 20 Pin FRC Cable (for interface Stick board and ULink)
- Connecting Wires.
- Keil UVision4