With trial and error, research, and additional assistance from colleagues plus college professors I was able to create my final project. Many Forums and tutorial videos were used to help me create my project. Step 6) Finish project Code works with created circuit and product structure. Step 5) Test code Look at printout on serial monitor, if issues make corrections to code. Step 3) Make circuit on breadboard - use jumper wires to connect proper breadboard pin to Arduino digital or Analog pin. Just hold roller shade and twist internal mechanism until tight. If not careful the spring tension in roller shade will unwind, if that happens it is easy to re-wind. I used pliers to take the end-cap off the roller shade to remove the locking pin. Step 2) Attach components to frame includes gear and chain systems, also roller shade with locking pin removed The metal rod is connected to the shade, allowing it to be raised or lowered depending on what the current code parameters request the shade to be at. The gear drives a driver rod that rotates a chain and sprocket system that controls the up or down movement of an aluminum rod that is attached to the chain. If the light and temperature sensor parameters are met then the system tells the motor to move.Ī gear is attached to a 12V 200rpm geared DC motor. If the temperature threshold is met, then the code checks the light sensors. The temperature sensor is the keystone component for the circuit, if a temperature of a set threshold is not met, then no action will be done even if light is noticed. When Switch is off, acting as if the vehicle is similarly off then the system will work and function properly. That way when driving your vehicle the shade wont work. When switch is on, indicating that the vehicle is on, no action will occur at all. The battery is connected to the H - bridge so that motor rotational direction can be controlled.Ī manual toggle switch is between the battery and H - bridge to act as a On/ Off component to simulate when the car is on or off. it alternates the current flow through the motor, which controls the voltage polarity allowing directional change to occur.Ī 12 Volt, 1.5 Amp battery provides power for the motor. The H - Bridge acts as a relay for motor rotation control. The limit switches are cutoff switches for the circuit to tell the system to stop motor movement. When the trigger is at the top hitting the upper limit switch the LED shows a pinkish-red. When trigger is between both limit switches the LED displays blue. When trigger is at bottom position triggering the lower limit switch the LED shows red. THE RBG LED is to indicate where the trigger rod is located. Two limit switches, a temperature sensor, a light sensor, an RBG LED, and a H - Bridge is connected to the Arduino Uno. Allowing the system to work without the computer as the power supply for the Arduino Uno, making the system portable, which is necessary if wanted to be used in a vehicle. The H - Bridge in the circuit provides an output of 5 volts which is enough to control the Arduino Uno. Once code is uploaded to the Arduino Uno there will not be any need to stay connected to the computer to continue the program as long as the Arduino Uno gets a different power supply to run. Through a computer or laptop, code from the Arduino programmer is sent to the Arduino Uno that then reads the code and enforces the commands. With an automatic sunshade system, you wouldn’t have to manually put the shades up or remember to put them up because it would automatically rise when needed. Having a blind system can also serve as a security device to prevent someone viewing inside your vehicle.” Even though there are sunshades for cars that are easy and simple to put up, it can sometimes be a hassle and you may forget to put it up. Problem statement – “When vehicles are left out in the heat the vehicle interior temperature can become highly uncomfortable, especially for oneself when reentering the vehicle or for passengers left in the vehicle. You could also turn the switch off to completely turn the system off. For example, if it was a cool night and you wanted your car covered for privacy, you could simply hit the switch to raise the shade. A switch was added to the system in case you wanted to raise the shade even though neither of the parameters were met. Boundaries were set so that the shade would not work when a vehicle is on. This system would allow a shade to simply cover the window of the car when the car reached a certain temperature and when a certain amount of light was passed through the car. The product created is an automatic sunshade system for vehicles, it is fully autonomous and is controlled by temperature and light sensors.
0 Comments
Leave a Reply. |