Summary of MAXIM INTEGRATED MAX25405 IR GESTURE SENSOR
Maxim Integrated MAX25405 is a compact, low-cost IR gesture sensor for automotive use that integrates lens, aperture, visible-light filter, and a 6×10 photodetector array. It detects swipes (left/right/up/down/wave), air click, flicks, clockwise/counterclockwise rotation, multizone proximity, and linger-to-click, even in bright ambient light. The sensor requires a low-power CPU (example MAX32630) to process data and supports I2C (400 kHz) and SPI (6 MHz). It comes in a 4 mm × 4 mm, 20-pin optical QFN package.
Parts used in the MAX25405 IR Gesture Sensor project:
- MAX25405 IR gesture sensor (integrated lens, aperture, visible light filter, 6×10 photodetector array)
- IR LED light source (controlled illumination for reflection)
- Low-power CPU such as MAX32630 (for processing sensor data)
- Microcontroller communication interface supporting I2C (400 kHz)
- Microcontroller communication interface supporting SPI (6 MHz)
- PCB and connectors compatible with 20-pin, 4 mm × 4 mm optical QFN package
- Power supply suitable for sensor and CPU
Maxim Integrated MAX25405 IR Gesture Sensor is a low-cost, flexible gesture-sensing solution for automotive applications. The MAX25405 integrates a complete optical system including lens, aperture, visible light filter, and a 6×10 photodetector array.
The MAX25405 recognizes the following independent gestures:
- Hand swipe gestures (left, right, up, down, wave)
- Air click
- Flicks
- Finger and hand rotation (clockwise and counter-clockwise)
- Multizone proximity detection
- Linger to click
The proximity, hand detection, and gesture recognition functions operate by detecting the light reflected from the controlled IR-LED light source with an integrated 6×10-element optical sensor array. The MAX25405 can detect these gestures even when exposed to bright ambient light. A low-power, low-cost CPU, such as the MAX32630, is required to process the data from the sensor.
The Maxim MAX25405 supports two different serial communication protocols, the I2C (400kHz) and SPI (6MHz). The MAX25405 is housed in a 4mm x 4mm, 20-pin, optical QFN package.
Read more: MAXIM INTEGRATED MAX25405 IR GESTURE SENSOR
- What gestures can the MAX25405 recognize?
The MAX25405 recognizes hand swipes (left, right, up, down, wave), air click, flicks, finger and hand rotation (clockwise and counter-clockwise), multizone proximity detection, and linger to click. - Does the MAX25405 work in bright ambient light?
Yes, the MAX25405 can detect gestures even when exposed to bright ambient light. - What optical components are integrated in the MAX25405?
The MAX25405 integrates a lens, aperture, visible light filter, and a 6×10 photodetector array. - What kind of processor is required to use the MAX25405?
A low-power, low-cost CPU is required to process the data; the MAX32630 is given as an example. - Which communication protocols does the MAX25405 support?
The MAX25405 supports I2C at 400 kHz and SPI at 6 MHz. - What is the package size and pin count of the MAX25405?
The MAX25405 is housed in a 4 mm × 4 mm, 20-pin optical QFN package. - How does the MAX25405 detect proximity and gestures?
It detects reflected light from a controlled IR-LED light source using an integrated 6×10 photodetector array.
