產品說明9
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Grove - Light Sensor 光敏 光傳感器(101020014)
DESCRIPTION
The Grove - Light sensor module uses GL5528 photoresistor(light dependent resistor) to detect the intensity of light in the environment. The resistance of photoresistor decreases when the intensity of light increases. A dual OpAmp chip LM358 on board produces voltage corresponding to intensity of light(i.e based on resistance value). The output signal from this module will be HIGH in bright light and LOW in the dark.
This module can be used to build a light controlled switch i.e switch off lights during day time and switch on lights during night time.
For all Grove users (especially beginners), we provide you guidance PDF documents. Please download and read through Preface - Getting Started and Introduction to Grove before your using of the product.
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- Operating Voltage: 3-5V
- Supply Current: 0.5-3mA
- Photoresistor: GL5528
- Light resistance: 20KΩ
- Dark resistance: 1MΩ
- Response time: 20-30 secs
- Peak Wavelength: 540 nm
(更新版) Grove - Light Sensor V1.2 光敏 光傳感器(101020132)
Description
As an updated version of Grove - Light Sensor 1.0, the Grove - Light Sensor v1.2 is also aimed at measuring light levels, however with higher reliability and sensibility. It is an analog module and output various electrical signals which can be converted to different ranges (It depends on the Analog-to-Digital-Converter on your controller board. For example, it can output 0-255 for an 8-bit ADC). It integrates a high-sensitive and reliable phototriode, and just like other grove modules, it is interfaced with Grove port which can save you a lot work in wiring.
Features
- Easy to use since it is interfaced with Grove port.
- High reliability and sensibility.
- Small footprint
- Recognize wider spectrum.
Technical Details
- Dimensions：20mm x 20mm x 18mm
- Weight：G.W 5g N.W 4g
- Battery：Exclude
- Operating voltage(V)：3-5 V
- Operating current(mA)：0.5-3 mA
- Response time：20 ~ 30 milliseconds
- Peak Wavelength：540 nm
- Phototriode：GL5528(datasheet)
說明文檔：http://wiki.seeedstudio.com/Grove-Light_Sensor/
網址內會有依些圖式範例等等相關資料~~
