To ease the difficult of using this light sensor,  a Gravity Interface is adapted to allow plug&play.  The IO sensor shield is the best match for this sound senor connecting to your Arduino. As this sensor can work at 3.3V which make it compatible with Raspberry Pi, intel edison, joule and curie. 

• Supply Voltage: 3.3V to 5V
• Illumination range : 1 Lux to 6000 Lux
• Responsive time : 15us
• Interface: Analog
• Size:22x30mm(0.87"x1.18")

Project 3. Hyduino - Automated Hydroponics with an Arduino
hydroponics is growing plants without the use of a traditional dirt medium by using a nutrient rich water solution. This is especially great for those people that that have limited areas in their backyard to grow in.
Hardware list:

• Arduino Mega 2560
• Peristaltic Pumps (2)
• Regular Pump
• pH Electrode Probe and Connection to Arduino
pH Up/Down Solution
• 5V Relay Modules for Arduino
• 12V Solenoid Valve
• DHT11 or DHT21 or DHT22 Humidity/Temperature Sensor
• Photosensitive Sensor for Arduino
• Breadboard
• Various Wires
• Grow Lights (mine are LED)
• Sockets for Grow Lights
• 3.2" TFT LCD Shield + Touch Screen (usually has an SD card reader on the back of it)
• Water Level Sensor Float Switch (2)
• I2C RTC DS1307 AT24C32 Real Time Clock Module
• 9V and 12V Power Supplies
• Hydroponics Pots (I'm using 10 - 3" pots for this)
• 1" PVC Pipe and Fittings + Drain Pipe and Fittings

Project 4: Environmental Monitoring System Based on OBLOQ-IoT Module
This product is mainly applied in electronic laboratory to monitor and control indicators such as temperature, humidity, light and dust, and timely upload them to the cloud data space to achieve remote monitoring and control of dehumidifier, air purifier, exhaust fan and dimmable light, etc. in the laboratory.     

Hardware List: 

Project 5: micro:bit Laser Target

The ambient light sensor sensor detects the intensity of the laser pointer. If it is greater than 400, it will sound the buzzer and the servo will make the target fall and up. Game over when it reaches 10. Press A to reset score to 0.

Hardware components:

• Micro:bit *1
• DFROBOT micro:bit expansion shield *1
• DFRobot Ambient Light Sensor  *1
• DFRobot Digital Buzzer Module  *1
• laser pointer
• Servo motor 9g *1
• Popsicle 
• Bottle cap
• paper target
• Glue gun
• Crocodile clip 
• Micro switch 
• 3V battery case

• Wide voltage range from 3.3V to 5V
• Standard assembling structure (two 3mm holes with multiple of 5cm(1.97") as interval)
• Easily recognitive interfaces of sensors ("A" for analog and "D" for digital)
• Icons to simplely illustrate sensor function 
• High quality connector
• Immersion gold surface

• Wiki (DFRobot Ambient Light Sensor)     
• Schematic
• PT550 Datasheet    

• Analog Ambient Light Sensor x1
• Analog cable x1