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9. Input devices

This week assignment

  • Group assignment:

    • Probe an input device(s)’s analog levels and digital signals
    • Document your work on the group work page and reflect on your individual page what you learned

    • Individual assignment:

    • Measure something: add a sensor to a microcontroller board that you have designed and read it.

Progress

  • [ ] Grupp assignment - [ ]
    • [ ] Probe an input device(s)´s analog levels and signals.
    • [ ] Document your work on the group work page and reflect n your induvidual page what you learned.
    • [ ] Document
  • [ ] Induvidual assignment
    • [ ] Measure something: add a sensor to a microcontroller board that you have deigned and read it.
    • [ ] Document that process
    • [ ]

Research

This weel assignment is about to mill and solder that board and get ir to work as it was designed. I have experience in using Roland MDX-20 mill and made few PCB boards last year or so, i didint really do much research this week i just went straight trough and produced the board i made in week 06. However i did also investigate other mills and did order Lunyee 3018 pro mill, it arrived late this week and i was not able to get it up and running to test it in this week there for that machine was not use to do this assingment i also study control software for the lunyee mill called candle it seems to me it´s easy going software and i am looking much forward to test this machine as soon as the spare part i need arrives. To get this week assignment done i also need to program hte RP2040 that i used most reserch for that was done in week 06.

I made this C++ code and ask Copilot to change it over to python

// C++ code
//
#include <Arduino.h>
#include <U8g2lib.h>


U8G2_SSD1306_128X64_NONAME_F_SW_I2C u8g2(U8G2_R0, /* clock=*/ SCL, /* data=*/ SDA, /* reset=*/ U8X8_PIN_NONE);

int motion = 0;

void setup()
{
  pinMode(27, INPUT);
  pinMode(28, OUTPUT);
}

void loop()
{
  if (digitalRead(11) == 1) {
    digitalWrite(12, HIGH);
  } else {
    digitalWrite(12, LOW);
  }
  delay(10); // Delay a little bit to improve simulation performance
}

And this was the outcome:

import machine
import utime
from ssd1306 import SSD1306_I2C

# Define pin numbers
motion_sensor_pin = machine.Pin(27, machine.Pin.IN)
led_pin = machine.Pin(28, machine.Pin.OUT)

# Initialize I2C for OLED display
i2c = machine.I2C(0, scl=machine.Pin(21), sda=machine.Pin(20))
oled = SSD1306_I2C(128, 64, i2c)

def display_message(message):
    oled.fill(0)
    oled.text(message, 0, 24)
    oled.show()

while True:
    # Read the state of the motion sensor
    motion_state = motion_sensor_pin.value()

    # Check if motion is detected
    if motion_state == 1:
        # Turn on the LED
        led_pin.value(1)
        print("Motion detected! LED is ON.")
        # Display message on OLED
        display_message("Motion detected!")
    else:
        # Turn off the LED
        led_pin.value(0)
        print("No motion. LED is OFF.")
        # Display message on OLED
        display_message("No motion.")

    # Small delay to avoid bouncing
    utime.sleep(0.1)

This was not the outcome i expected Copilot added alot to the code that was not realy needed in it, even added hardvare like oled screen that was not supposed to be in this project, so i had to clean up the code. Here is the final version:

 import machine
import utime


# Define pin numbers
motion_sensor_pin = machine.Pin(27, machine.Pin.IN)
led_pin = machine.Pin(28, machine.Pin.OUT)




while True:
    # Read the state of the motion sensor
    motion_state = motion_sensor_pin.value()

    # Check if motion is detected
    if motion_state == 1:
        # Turn on the LED
        led_pin.value(1)
        print("Motion detected! LED is ON.")
      er
    else:
        # Turn off the LED
        led_pin.value(0)
        print("No motion. LED is OFF.")


    # Small delay to avoid bouncing
    utime.sleep(0.1)

As you can see this code is very simple but this is very simple project to do the reason i started with C++ code is that i am little bit familiar with C++ and can make simple program with C++ my self. as this is very simple code it was not hard for me to do. I am not very familiar with python so i decided to get help from copilot to convert te code, i was very surprised by how much Copilot change it some good some i didint like. Lika adding hardware to this code(that OLED Screen) was not requerd and should not have been added to the code.
One of the thing i like about Copilots change is that it starts by define the pin numbers, in a small program like this one its not realy needed to define the pin numbers, but in a longer and more complex code were you using the same pins again and agian it can be realy good to dfine the pin numbers in case u ever need to change the pin number then you only have to do that in one place not all around the program code.