The VL6180 Optical Range Finder Sensor three-in-one optoelectronic module integrates an IR VSEL (vertical-cavity surface-emitting laser) infrared vertical cavity surface emitting laser source, proximity sensor, and ambient light sensor (ALS). The VL6180X module implements a proximity sensor using the time-of-flight (ToF) measurement principle; the VL6180X includes a SPAD (Single Photon Avalanche Diode) detector array that detects the time at which a single photon is emitted from the emitter to the contact target and back to the module, calculated in conjunction with the signal amplitude. The actual distance, independent of the reflectivity of the object, this actual distance measurement capability can also produce simple, but reliable one-dimensional gesture control.
The ambient light sensor also has high sensitivity, precision, wide dynamic range of induction, and ambient light (Lux) corrected output in ultra-low light. All components used to support proximity sensors and ambient light sensors are integrated into one packaged optical module. The embedded design can be completed without the need for a mechanical spacer or an additional lens system.
- Infrared laser wavelength: 850nm
- Communication interface: IIC (400kHz), address 0x29 (7-bit), two programmable GPIO
- Optimal working temperature: -10 ~ 60 ° C
- Range (close) range: 0 ~ 100mm error 13mm
- Under certain external environmental conditions, such as in dark environments, it can exceed 100mm
- Temperature drift: 9 ~ 15mm Voltage drift: 3 ~ 5mm
- Conversion time: 15ms
- Ambient light range: 1~100kLux 16-bit output
- Ambient light gain range: 1 to 40 (eight)
- Ambient light sensitivity: 0.36Lux/count (535nm LED @ 1 kLux. Measured @ gain 20)
- Angle response: 42 degrees
- Linearity error: 5% (1 to 300 Lux), 10% (300 to 7500 Lux)
- Gain error: 1% (gain 20), 7% (gain 1 to 10)
- 2.8V: 2.8V voltage on the power input pin;
- GND: power ground;
- SCL: I2C clock pin, connected to the master SCL;
- SDA: I2C data pin, connected to the master SDA;
- GPIO1: A pin used by the sensor to indicate that the data is ready.
- This pin outputs 0-2.8V high and low level. This pin may not be applied to boards such as Arduino (these boards are high level 3.3 or 5V). Generally, it is not necessary to apply level shifting.
- GPIO0 (SHDN): The shutdown pin of the sensor. By default it is pulled high. When the pin is pulled low, the sensor enters the shutdown mode.
- The module’s IIC bus pull-up resistor is already on the board, but it is not connected to 2.8V. The three pads need to be shorted. as the picture shows:
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