This product is retired, please consider the new versionGrove - Light Sensor V1.2.
The Grove - Light sensormodule 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.
Operating Voltage: 3-5V
Supply Current: 0.5-3mA
Light resistance: 20KΩ
Dark resistance: 1MΩ
Response time: 20-30 secs
Peak Wavelength: 540 nm
|Dimensions||60mm x 80mm x 10mm|
|Grove - Light Sensor||1|
I have been reading the example code for this sensor and I have two questions about this formule: Rsensor=(float)(1023-sensorValue)*10/sensorValue;
1) If I am using a 12 bits ADC and 3,3 VCC source power, how is the new version of this for
Thanks for your answer Luo G, Yes, I'm using a microcontroller with a 12 bits ADC and with 3,3 V as VCC. Also, about the second question, I need to get luxes or lumens units and I don't know how I can use Rsensor value to get luxes or lumens untis from
How to Connect direct to an Arduino Uno R3?
The link to the Wikipage doesn't work, it leads back to here!
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