We take cryptocurrency — so the coins you hold can buy real hardware.Pay in crypto, spend it on real hardware. Free insured shipping worldwide over $399. Plain, unbranded boxes, sent from Germany.Free insured shipping over $399. Your rate is locked for 30 minutes once checkout opens.Rate locked 30 minutes. Every item sealed, serial-checked and covered by a 24-month warranty.Sealed, 24-month warranty.

Saved items Sign in
Small green PCB with sensor chip and Grove connector, 20 by 20 mm

Seeed Studio

Seeed Studio Grove Gesture Sensor PAJ7620U2 13 gestures 5V I2C

SKU CH-44SZ-DQQDS

Recognises 13 hand gestures from 5-10 cm with a 5 V I2C interface for Arduino and Seeeduino boards

  • TypeSensors
  • Recognises 13 gestures for touch-free control
  • Built-in proximity detection adds presence sensing
  • 5 V I²C interface connects directly to Arduino
  • Compact 20 × 20 mm board fits tight spaces
  • Grove cable included for instant wiring

Sensor overview

The Grove Gesture Sensor uses the PAJ7620U2 chip to recognise 13 distinct hand movements at a distance of 5 to 10 cm. It operates at 5 V over a standard I2C bus and is aimed at hobbyists adding touch-free control to Arduino or Seeeduino projects. The compact 20 mm square board includes built-in proximity detection for richer interaction. No soldering is required thanks to the supplied Grove cable.

Installation notes

The module connects through a keyed 4-pin Grove socket using the included 26 AWG cable, so wiring takes seconds on any compatible mainboard. Libraries exist for Arduino UNO, Mega2560 and Seeeduino, but code written for the older 9-gesture version must be updated to handle the full 13-gesture set. The sensor needs a clear line of sight; strong side lighting or a dirty lens can reduce reliable range.

Gesture count

This revision recognises 13 gestures compared with the earlier 9-gesture variant, which determines whether existing sketches will work without modification. If your application only needs basic directional swipes the older firmware may suffice, but new designs benefit from the expanded vocabulary. The I2C address and 5 V supply remain unchanged from the previous version.

Highlights

  • Recognises 13 gestures for touch-free control
  • Built-in proximity detection adds presence sensing
  • 5 V I²C interface connects directly to Arduino
  • Compact 20 × 20 mm board fits tight spaces
  • Grove cable included for instant wiring

Specifications

TypeSensors

Questions about this item

How can I confirm the Grove Gesture Sensor is detecting movements correctly after wiring it up?

Upload the example sketch to the connected board, open the serial monitor, and swipe your hand; the output will show one of the 13 gesture codes for each recognised movement

Which components are included and what must be sourced separately?

The package contains one Grove Gesture PCBA and one 26AWG Grove cable; a compatible mainboard such as an Arduino UNO, Seeeduino or Arduino Mega2560 is not included

Should I choose the 9-gesture or 13-gesture version of this sensor?

This module uses the PAJ7620U2 chip and recognises 13 distinct gestures; there is no separate 9-gesture variant to select

Also in this aisle

People compared these

Same shelf, same checkout — eight coins and a 30-minute rate lock.