5pcs/Lot Electronic Brick - Light Sensor Brick

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Product Description

5pcs/Lot Electronic Brick - Light Sensor Brick
5pcs/Lot Electronic Brick - Light Sensor Brick

What is an electronic brick?

An electronic brick is an electronic module which can be assembled like Lego bricks simply by plugging in and pulling out. Compared to traditional universal boards and circuit modules assembled with various electronic components, electronic brick has standardized interfaces, plug and play, simplifying construction of prototype circuit on one’s own. There are many types of electronic bricks, and we provide more than twenty types with different functions including buttons, sensors, Bluetooth modules, etc, whose functions cover from sensor to motor drive, from Ethernet to wireless communication via Bluetooth, and so on. We will continue to add more types to meet the various needs of different projects.
 
Electronic brick of light sensor is mainly used to detect the light intensity in the environment. The control board can get the current light intensity information via analog pins. Generally speaking, the resistance of photoresistor decreases with the increase of the light intensity.
 
Light Sensor Brick  Features:
 
1. Plug and play, easy to use. Compatible with the mainstream 2.54 interfaces and 4-Pin Grove interfaces in the market.
2. With use of M4 standard fixed holes, compatible with M4-standard kits such as Lego and Makeblock.
3. With switch to shift between analog and digital output. Able to read the specific light intensity information (analog) or the over-bright or over-dark information
    according to the threshold (digital). The adjustable potentiometer is used to set the light intensity threshold. With hysteresis comparator circuit for more
    stable digital output voltage.
4. Detecting direction can be rotated for better adaption
 
Light Sensor Brick Specifications:
 
PCB size: 36.0mm X 24.0mm X 1.6mm
Working voltage: 3.3 or 5V DC
Operating voltage: 3.3 or 5V DC
Compatible interfaces: 2.54 3-pin interface and 4-pin Grove interface(1)

Note:

1. D for digital output port, A for analog output port, S for analog/digital output port ( defined according to the switch), V and G for voltage at the common collector
     and ground respectively
2.  When setting as analog output, output range is 0-3.3V or 0-5V according to the working voltage (V,G); when setting as digital output, output is 0/3.3V or 0/5V
      according to the working voltage (V,G).
 
Electrical Characteristics:
 
Parameter Min. Typical Max. Unit
Working voltage:  2.1  5  5.5  VDC
Analog output voltage( VCC=5V ): 0  Vout  5  V
Digital output voltage ( VCC=5V): 0  -  5  V
Working current ( VCC=5V ):  -  5  -  mA
Photoresistor ( light intensity is 10lux ): 5  -  10  kohm
Threshold hysteresis ΔUth  -  VCC*0.09  -  V
Brick Type Sensor Brick
Brick Interface: 3PIN
Brick Power Supply: 5V
Board Size: 36 × 24 × 1.6mm
Hardware
 
Switch and Indicator:
 
1. Regulating of threshold voltage:
     The threshold voltage is a voltage for comparison. When the light intensity value read by the sensor is above the threshold value, a low level (0V) will be digitally
     output;when the light intensity value read by the sensor is below the threshold value, a high level (3.3V or 5V) will be digitally output. In this way, the digital pin
     can be used directly to read the current light intensity value in the environment to see if it is above the threshold or not. The threshold voltage can be regulated
      by simply twisting the potentiometer which is shown in Figure 1, and it increases by rotating to left side and decreases by rotating to right side.
2. Switch to shift between analog and digital output For S pin in 4-pin Grove interface and 2.54mm 3-pin interface, it outputs analog signals when switch is pushed
     to A terminal and digital signals when pushed to D terminal. When there is analog signal output, it can read the specific light intensity value; when there is digital
     signal output, it can only indicate whether the light intensity value is above threshold value or not.
 
DEMO
 
1. Push the snap switch of sensor to analog output, connect S port to A0 port of Arduino board, and we will use the following program to read the analog value
    of light intensity and send it to computer for display via the serial port.
 
2. Push the snap switch of sensor to digital output, connect S port to D2 port of Arduino board, and we will use the following program to read the digital value
    of light intensity and send the threshold to computer for display .

Electronic Brick - Light Sensor Brick Packing Including:
 
5pcs x Electronic Brick - Light Sensor Brick



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