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ELEVENTH WEEK ASSIGNMENT
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OUTPUT DEVICES                  

  Assignment    

  • Add an output device to a microcontroller board you have designed and program it to do something.
This assigment has 2 steps:
  • Implement 2 FAb examples, the RGB LED and the LCD DISPLAY. Modify the program to achieve visible changes.
  • Implement a sunlight sensor for a solar panel.
STAGE ONE 
I decided to implement the RGB LED that is controlled by Attiny 45, and the DISPLAY LCD that is controlled by Attiny 44 to be able to understand the diagrams and the program code.The next step is to make some modifications to the program to achieve visible changes.

RGB LED

These are the assembling diagrams of circuit board. You can see that It doesnīt have a resonator, a voltage regulator, and ISP conection, and it uses 3 output to control the led.

 hello.RGB.45.cad board components
 traces interior C makefile video
hello.RGB.45

LCD DISPLAY

In this case the circuit has a 20MHz resonator, a voltage regulator, and ISP conection, the display must be conected to J3.

 hello.LCD.44.cad board components
traces interior C makefile video serial

helloLCD


hello_RGB45
 hello_LCD44
Here the RGB circuit is working with and internal 8 MHZ timer. This circuit has a 20MHz resonator and itīs necesary to configure the board in arduino software before downloading  the code.
configurando_tarjeta
In this assignment i have used the ISP Tiny we implemented in the 4th week "electronic production"
.
 programador
                           Here the file

Here the file

USBTinyISP
rgb_arduino_ide
 lcd_arduino_ide
leds
 programando
Yoy can see some videos as evidence.

 


ASSIGNMENT COMPLETED!
 
STAGE TWO: Sunlight sensor
 
For this assignment we have a solar panel and I can control it on one AXIS.

So I need to implement a sunligth sensor with one axis with Attiny 45.

Online there are many applications about this topic.
I found a particular website with  Attiny 13 applications.

Have seen the Attiny 13 and 45 configurations, and the pin  configurations are exactly the same, and the 45 has better performance.

Files here: sunlight sensor

attiny13o45 At the begining I tested the circuit board as you can see in the video
seguidor_probando


Today I tested the panel and obtained 18V and it is possible to move the motor directly. The DC motor needs 2A at the begining and my problem is I donīt have the necessary components for output power.
 In the following video I tested the system with a little DC motor and the program worked correctly.

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