PAJ7620U2 Gesture Sensor
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Introduction
PAJ7620U2 Gesture Sensor,gesture recognition function with general I2C interface into a single chip.
It can recognize 9 gestures including move up, move down, move left, move right, etc with a simple swipe of your hand.
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Features
- Based on PAJ7620U2 sensor, directly recognizes 9 basic gestures, supports gesture interrupt output.
- Embedded infrared LED and optical lens, be able to work in low-light even dark environment.
- I2C interface, requires only two signal pins to control.
- Onboard voltage translator, compatible with 3.3V/5V logic level.
Specification
- Operating voltage: 3.3V/5V
- Communication interface: I2C
- Recognition distance: 5cm ~ 15cm
- Supported gestures: up, down, left, right, forward, backward, clockwise, anticlockwise, shake
- Recognition rate: 240Hz
- Recognition angle: 60° (diagonal)
- Ambient light immunity: <100k Lux
- Dimensions: 20mm × 20mm
- Mounting hole size: 2.0mm
- Application: smart home, offices and teaching, human-robot interaction, gesture toys and domatosensory game equipment
Interface
| PIN | SYMBOL | Description |
| 1 | VCC | 3.3V/5V |
| 2 | GND | Ground |
| 3 | SDA | I2C data pin |
| 4 | SCL | I2C clock pin |
| 5 | INT | External interrupt pin |
How to use it
We provide demo codes for easy testing, you can download the demo codes from #Resources
Unzip the archive downloaded to get the codes.
Raspberry Pi
- Insert the Micro SD card of Raspberry Pi to the host PC.
- Copy the RapberryPi folder to the boot directory of the micro SD card.
- Start your Raspberry Pi with the Micro SD card.
- You can find that the Raspberry Pi codes are saved in the BOOT directory.
- Copy the folder to the home directory
sudo cp -r /boot/RaspberryPi/ ./ sudo chmod 777 -R RaspberryPi/ cd RaspberryPi
- Install libraries
- BCM2835:
wget http://www.airspayce.com/mikem/bcm2835/bcm2835-1.64.tar.gz sudo tar zxvf bcm2835-1.64.tar.gz cd bcm2835-1.64 sudo ./configure sudo make sudo make check sudo make install
- Install wiringPi
sudo apt-get install git sudo git clone git://git.drogon.net/wiringPi cd wiringPi sudo ./build
- Install python
sudo apt-get install python-pip sudo pip install RPi.GPIO sudo pip install spidev sudo apt-get install python-imaging sudo apt-get install python-smbus sudo apt-get install python-serial
- Enable I2C
sudo raspi-config
- Choose Interfacing Options -> I2C -> Yes
- Hardware connection
The colors of the wires may be different, please connect them according to the silk screen printing.
| Gesture Sensor | Raspberry Pi (Board) | Raspberry Pi(BCM2835） |
|---|---|---|
| VCC | 3.3V | 3.3V |
| GND | GND | GND |
| SDA | 3 | P2 |
| SCL | 5 | P3 |
- Run the codes
- BCM2835 codes
cd ~/RaspberryPi/bcm2835/ cd Gesture sudo make sudo ./PAJ7620U2
- wiringPi codes
cd ~/RaspberryPi/wiringPi cd Gesture sudo make sudo ./PAJ7620U2
- Python codes
cd ~/RaspberryPi/python cd Gesture sudo python PAJ7620U2.py
- Expected result
- Gesture detecting:
- Object detecting:
STM32 examples
The STM32 examples are based on Waveshare XNUCLEO-F103RB whose chip is STM32F103RB, HAL libraries.
- Hardware connection
Connect the sensor to the STM32 board according to the table, then connect the USB to UART interface of the XNUCLEO board to the host PC.
| Gesture Sensor | STM32 |
|---|---|
| VCC | 3.3V/5V |
| GND | GND |
| SDA | PB9 |
| SCL | PB8 |
- Open the project (STM32 demo codes) with Keil software
- Compile it and program to board
- Expectre result
- Run serial assistance software, set baud rate to 115200
- Gesture Detecting:
- Obeject detecting:
Arduino
The demo codes provide is based on the Arduino UNO.
- Hardware connection
| Gesture Sensor | Arduino |
|---|---|
| VCC | 5V |
| GND | GND |
| SDA | SDA |
| SCL | SCL |
- Open the codes by Arduino IDE.
- Compile and upload to Arduino Board.
- Expected result
- Gesture detecting
- Object detecting
Resources
FAQ
Support
Support
If you require technical support, please go to the Support page and open a ticket.