VCNL4020 근접/조도 센서 -I2C
(Adafruit VCNL4020 Proximity and Light Sensor
- STEMMA QT / Qwiic)
개요
- 본 제품은 VCNL4020 근접/조도 센서 -I2C 입니다.
- 0-200mm 측정거리를 가진 근접 센서, 0.26-16,000 lux 범위으 조도 센서인 VCNL4020 칩을 탑재하고 있습니다.
- I2C 인터페이스를 가지고 있습니다.
특징
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The VCNL4020 is a handy two-in-one sensor, with a proximity sensor that works from 0 to 200mm (about 7.5 inches) and light sensor with range of 0.26 to 16,000 lux.
We've all been there. That thing is close but how close? When you need to measure a small distance with reasonable accuracy, such as the rough height of particularly calm bumble bee, the VCNL4020 Proximity Sensor from Vishay can do that for you. If perchance you also needed to measure the amount of light at the same time, perhaps to let the bee to know if it's time for bed, you're in luck! The VCNL4020 can do that too (bumble bee not included, we tried putting it in the anti-static bag but it started buzzing in a threatening manner)
This sensor is similar to the VCNL4040 but with a wider light sensor range, up to 16000 lux!
As with all of our new I2C sensors, we've taken the VCNL4020 and put it onto a breakout PCB along with support circuitry to let you use this little wonder with 3.3V (Feather/Raspberry Pi) or 5V (Arduino/ Metro328) logic levels. Since it speaks I2C you can easily connect it up with two wires (plus power and ground!). We've even included SparkFun qwiic compatible STEMMA QT connectors for the I2C bus so you don't even need to solder! Just wire up to your favorite micro and you can use our Arduino drivers to easily interface with the VCNL4020 and make approximate approximations of proximity in no time!
QT Cable is not included, but we have a variety in the shop.The VCNL4020 comes with a variety of knobs you can tweak, such as how many samples per second (a.k.a the integration time between measurements) - more samples per second means faster results but not as good at measuring low level light. With 16-bit light level reports, and 0.25 lux per bit, you can measure from 0.25 to 16,000 lux! And various averaging filters can do your low-pass filtering for you so you get less spiky results. However, there is no other sensitivity/integration time controls.
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Product Dimensions: 25.3mm x 17.8mm x 4.6mm / 1.0" x 0.7" x 0.2"
Product Weight: 1.7g / 0.1oz
