VL6180X - distance, light and gesture sensor. Free Technical Library News

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VL6180X - distance, light and gesture sensor

09.05.2015

STMicroelectronics has released a new combined distance and light sensor VL6180X, based on proprietary FlightSense photon time-of-flight technology. The VL6180X can measure distances up to 40 cm and light levels up to 100000 lux. The VL6180X can recognize simple gestures.

Measurement of the distance to the obstacle is carried out using a built-in source of infrared radiation made on a semiconductor laser. The distance measurement accuracy is a few millimeters at a distance of 0 to 10 cm. Depending on the area and color of the reflecting surface, the distance to the measured object can reach 40 cm.

Interaction with the sensor from the host controller is performed using the I?C interface and two auxiliary configurable general purpose I/O ports. To reduce the amount of computation on the host, the VL6180X can be configured to issue interrupts only at a certain distance from the object.

The VL6180X requires 2,6...3,0V single polarity to operate. Current consumption when measuring illumination is 300 μA, when measuring distance - 1,7 mA. In standby mode, the sensor consumes less than 1 µA. Operating temperature range from -20 to +70°C. The sensor is housed in a miniature 12-pin LGA package for surface mounting with a lead pitch of 0,75 mm.

Features of VL6180X:

- wide dynamic range of illumination measurement 1...100kLux;
- high accuracy and ability to work in low light;
- fast distance measurement up to 40 cm;
- weak dependence on the reflectivity of the measured object;
- suppression of reflected interference from the protective glass of the body of the product;
- low sensitivity to third-party light sources;
- the ability to work behind a visually opaque surface of the device;
- gesture recognition when using an external microcontroller;
- a demo application for a smartphone with Android OS.

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