Gesture Recognition Sensor Module(GY- PAJ7620U)

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GY-PAJ7620U2 1.jpg GY-PAJ7620U2 2.jpg
PAJ7620U2 integrates the gesture recognition function and general purpose I2C interface into a single chip. PAJ7620U2 has build in proximity sensing function that is used to detect the approaching or leaving objects. The gesture information can be easily accessed by using I2C bus


  • Typical supply voltage ranges from 2.8V to 3.3V and I/O voltage is 1.8V~3.3V
  • Nine gesture recognition (Up / Down / Left / Right / Push / Pull / CW / CCW / Wave)
  • Gesture speed is from 60°/s to 600°/s in Normal Mode and 60°/s to 1200°/s in Gaming Mode
  • Ambient light immunity: < 100k Lux
  • Built-in proximity detection
  • Flexible power saving scheme
  • I2C interface up to 400 kbit/s, Pull-up voltage from 1.8V to 3.3V
  • Ambient light noise cancellation

Introduction of Pins

VIN:Power Supply
SCL:I2C clock pin
SDA:I2C data pin
INT:Interrupt pin(Active low)


The PAJ7620U2 should be oriented as shown in Figure 4 for correct gesture detection
GY-PAJ7620U2 3.jpg
if rotate the gesture module, The direction of gesture detection interrupt flag mask(Register Bank 0,ADDR 0X41)and gesture detection interrupt flag(Register Bank0,ADDR 0X43)nedds to re-mapping. GY-PAJ7620U2 4.jpg

Experimental Procedures for Arduino

Step 1: Connect the circuit:

GY-PAJ762 SunFounder Uno
VIN 3.3v

GY-PAJ7620U2 5.jpg
Step 2:
GY-PAJ7620U2 6.jpg
GY-PAJ7620U2 7.jpg
GY-PAJ7620U2 8.jpg
GY-PAJ7620U2 9.jpg