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sensor:paj [2026/02/10 14:20] – vamsansensor:paj [2026/02/10 18:52] (current) – vamsan
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 ====== LamaPLC: Pixart gesture recognition sensors/module with I²C communication ====== ====== LamaPLC: Pixart gesture recognition sensors/module with I²C communication ======
-{{ :sensor:apds_9960_1.png?150|APDS-9960}}+{{ :sensor:paj7620.png?180|PAJ7620U2}}
 The PAJ7620U2 is a highly integrated gesture-recognition sensor module from Pixart that detects up to nine hand gestures and proximity via an I²C interface. It is commonly available on breakout boards for use with microcontrollers such as Arduino or Raspberry Pi. The PAJ7620U2 is a highly integrated gesture-recognition sensor module from Pixart that detects up to nine hand gestures and proximity via an I²C interface. It is commonly available on breakout boards for use with microcontrollers such as Arduino or Raspberry Pi.
  
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 **Key Features** **Key Features**
  
-Supported Gestures: 9 basic gestures: Up, Down, Left, Right, Forward, Backward, Clockwise (CW) circle, Counter-clockwise (CCW) circle, and Wave. Some modules support up to 13 gestures in a slower mode. +  * **Supported Gestures:** 9 basic gestures: Up, Down, Left, Right, Forward, Backward, Clockwise (CW) circle, Counter-clockwise (CCW) circle, and Wave. Some modules support up to 13 gestures in a slower mode. 
-Interface: I2C communication interface (up to 400 kbit/s), default address: 0x73 +  * **Interface:** I²C communication interface (up to 400 kbit/s), default address: **0x73** 
-Operating Voltage: Typically 2.8V to 3.6V (sensor chip); breakout boards often have onboard voltage translators for 3.3V/5V compatibility. If using a basic breakout board without a voltage regulator, provide a 3.3V supply to the VCC pin. If using a module that specifies 5V compatibility (like the Waveshare or Gravity series), you can safely use either 3.3V or 5V. +  * **Operating Voltage:** Typically 2.8V to 3.6V (sensor chip); breakout boards often include onboard voltage translators for 3.3V/5V compatibility. If using a basic breakout board without a voltage regulator, connect a 3.3V supply to the VCC pin. If using a module that specifies 5V compatibility (such as the Waveshare or Gravity series), you can safely use either 3.3V or 5V. 
-Detection Distance: Effective range of 5 cm to 15 cm, but can be up to 20 cm in some setups. +  * **Detection Distance:** Effective range of 5 cm to 15 cm, with some setups reaching up to 20 cm. 
-Ambient Light Immunity: High immunity to ambient light, up to <100k Lux. +  * **Ambient Light Immunity:** High immunity to ambient light, up to <100k Lux. 
-Power Consumption: Designed for low-power operation, suitable for battery-operated devices. +  * **Power Consumption:** Designed for low-power operation, suitable for battery-operated devices. 
-Array Size: 60×60 pixels +  * **Array Size:** 60×60 pixels 
-Gesture speed: 60~600°/s in Normal Mode and 60~1200°/s in Gaming Mode+  * **Gesture speed:** 60~600°/s in Normal Mode and 60~1200°/s in Gaming Mode
  
 ==== Arduino wiring ==== ==== Arduino wiring ====