{"product_id":"paj7620-gesture-recognition-sensor-module-i2c-hand-motion-detection-compoden","title":"PAJ7620 Gesture Recognition Sensor Module – I2C Hand Motion Detection | Compoden","description":"\u003ch1\u003ePAJ7620 Gesture Recognition Sensor Module – 9 Gesture I2C Sensor\u003c\/h1\u003e\n\n\u003cp\u003eThe PAJ7620 is a compact optical gesture recognition module that detects 9 hand motions including up, down, left, right, forward, backward, clockwise, counter‑clockwise, and wave. It communicates over I2C and operates with low latency, making it ideal for touchless user interfaces and interactive projects. Power it from 3.3V–5V and pair it with any microcontroller to add non‑contact controls.\u003c\/p\u003e\n\n\u003ch2\u003eKey Specifications\u003c\/h2\u003e\n\u003ctable\u003e\n  \u003cthead\u003e\u003ctr\u003e\n\u003cth\u003eSpecification\u003c\/th\u003e\n\u003cth\u003eValue\u003c\/th\u003e\n\u003c\/tr\u003e\u003c\/thead\u003e\n  \u003ctbody\u003e\n    \u003ctr\u003e\n\u003ctd\u003eOperating Voltage\u003c\/td\u003e\n\u003ctd\u003e3.3V – 5V DC (module‐integrated LDO)\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd\u003eInterface\u003c\/td\u003e\n\u003ctd\u003eI2C (up to 400 kHz)\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd\u003eGestures Recognized\u003c\/td\u003e\n\u003ctd\u003e9 (up, down, left, right, forward, backward, CW, CCW, wave)\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd\u003eDetection Range\u003c\/td\u003e\n\u003ctd\u003e5 – 20 cm from sensor surface\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd\u003eCurrent Consumption\u003c\/td\u003e\n\u003ctd\u003e~3.5 mA active, \u0026lt;1 μA sleep\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd\u003eDimensions\u003c\/td\u003e\n\u003ctd\u003e20 mm × 20 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003c\/tbody\u003e\n\u003c\/table\u003e\n\n\u003ch2\u003eWhat You Can Build With This\u003c\/h2\u003e\n\u003cul\u003e\n  \u003cli\u003e\u003ca href=\"\/products\/kit-esp32-s3-gesture-controlled-robot\"\u003eGesture‑controlled robot car that follows hand swipe directions\u003c\/a\u003e\u003c\/li\u003e\n  \u003cli\u003eTouchless media player with swipe to change tracks and volume\u003c\/li\u003e\n  \u003cli\u003eHand‑wave LED lamp with brightness and color mode changes\u003c\/li\u003e\n  \u003cli\u003eContactless menu navigation for a smart mirror or kiosk\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch2\u003eCompatibility\u003c\/h2\u003e\n\u003cp\u003eThe module works with any board that supports I2C, including Arduino Uno, Nano, Mega, ESP32, ESP8266, and Raspberry Pi. It typically runs at 3.3V logic but the onboard regulator allows 5V supply. Use the PAJ7620 library for Arduino or CircuitPython for rapid integration. Pair it with a small OLED for gesture‑feedback interfaces.\u003c\/p\u003e\n\n\u003ch2\u003eWiring Notes\u003c\/h2\u003e\n\u003cp\u003eConnect VCC to 3.3V or 5V, GND to ground, SDA to A4 (Arduino Uno) or GPIO21 (ESP32), SCL to A5 or GPIO22. The board includes 4.7 kΩ pull‑ups on SDA\/SCL, so external resistors are not needed. Avoid placing directly under bright sunlight or IR sources to prevent false readings.\u003c\/p\u003e\n\n\u003ch2\u003eWhy Buy from Compoden\u003c\/h2\u003e\n\u003cp\u003eEvery component is sourced from verified suppliers and tested for compatibility before listing. We've spent 10 years building projects for makers, schools, and institutions across India. Ships from Bengaluru in 3-5 days. If defective on arrival, replace within 7 days.\u003c\/p\u003e\n\n\u003cdetails\u003e\u003csummary\u003eIs this compatible with Arduino Uno?\u003c\/summary\u003e\u003cp\u003eYes, the PAJ7620 works seamlessly with Arduino Uno using the Wire library. Connect SDA to A4 and SCL to A5, and install the PAJ7620 Arduino library.\u003c\/p\u003e\u003c\/details\u003e\n\u003cdetails\u003e\u003csummary\u003eHow far can it detect gestures?\u003c\/summary\u003e\u003cp\u003eDetection range is 5–20 cm under normal indoor lighting. For best results keep your hand within 15 cm and move at a moderate speed.\u003c\/p\u003e\u003c\/details\u003e\n\u003cdetails\u003e\u003csummary\u003eDoes it work with 5V systems?\u003c\/summary\u003e\u003cp\u003eThe module accepts 5V input thanks to its onboard LDO regulator, making it safe for both 3.3V and 5V microcontrollers. I2C lines are 3.3V tolerant.\u003c\/p\u003e\u003c\/details\u003e\n\u003cdiv class=\"compoden-handoff\" style=\"margin-top:24px;padding:16px;background:#f0f4ff;border-left:4px solid #2B4D8F;border-radius:4px;\"\u003e\n  \u003cp style=\"margin:0 0 6px 0;font-weight:600;color:#1A3560;\"\u003e📦 Free Setup Handoff Document Included\u003c\/p\u003e\n  \u003cp style=\"margin:0;font-size:0.95em;color:#333;\"\u003eEvery Compoden order includes a free setup handoff document — step-by-step instructions to get your component working within minutes. Download it via QR code on your package. The handoff document is also trained to help you troubleshoot the majority of problems.\u003c\/p\u003e\n\u003c\/div\u003e\n","brand":"Compoden","offers":[{"title":"Default Title","offer_id":53445002821997,"sku":"CDN-0631","price":550.0,"currency_code":"INR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0999\/3997\/5533\/files\/download_0e622f26-9614-4dc5-9e0f-c188884a3af8.jpg?v=1781593691","url":"https:\/\/compoden.com\/products\/paj7620-gesture-recognition-sensor-module-i2c-hand-motion-detection-compoden","provider":"Compoden","version":"1.0","type":"link"}