mjdargen

/*
  
  Doorbell

  Passive Buzzer/Piezoelectric Speaker
  * Digital output 8
  * Other end of speaker connected to GND

  Pushbutton (for doorbell):
  * Digital input 2

mjdargen

  // send trigger pulse by setting it high for 10 us
  digitalWrite(TRIG_PIN, HIGH);
  delayMicroseconds(10);
  digitalWrite(TRIG_PIN, LOW);

  // Call pulseIn function to wait for High pulse
  // result will be time in microseconds until pulse is detected
  long duration = pulseIn(ECHO_PIN, HIGH);

  // Sound travels at 1115 feet per second

mjdargen

# Run this cell only once if you are having issues with your input/output...
# window overflowing and scrolling to the left and right horizontally.
# This code is a very hacky way of trying to adjust this.
# It resizes colab output window so it doesn't overflow
from IPython.display import HTML, display

def set_css():
  display(HTML('''
  <style>
    pre {

mjdargen

# pip install pyautogui
import pyautogui
# pip install pillow
from PIL import ImageGrab
import time


def click(key):
    pyautogui.keyDown(key)
    return

mjdargen

# import the math library for flooring function
import math

# define a new function that always rounds up if the digit is 5.
# call the function by saying: new_round(num, decimals)
# where num is the number you want to round and decimals is the
# number of digits after decimal point.
# Exp: new_round(2.5, 0) -> 2
# Exp: new_round(2.75, 1) -> 2.8
def new_round(num, decimals=0):

mjdargen

/* 
* Demo Code for 4x4 Membrane Switch Keypad
*/

#include <Keypad.h>

// initialization of the 4x4 keypad
const byte ROWS = 4; // four rows
const byte COLS = 4; // four columns
// define the two-dimensional array on the buttons of the keypads

mjdargen

# ping router every 5 minutes, reconnect if fails
*/5 * * * * /usr/bin/sudo /home/pi/Documents/reconnect_wlan0.sh > /dev/null 

mjdargen

/*

Create new file called images.h.
Copy the Arduino/C code variables to the right of the matrix picture.
Paste the code into the images.h file

https://github.com/xantorohara/led-matrix-editor
http://xantorohara.github.io/led-matrix-editor/
https://xantorohara.github.io/led-matrix-editor/#003c429999423c00|003c429999423c00|003c429999423c00|003c429999423c00|003c429999423c00|003c429999423c00|003c429999423c00|003c429999423c00|003c429999423c00|003c429999423c00|003c429999423c00|003c429999423c00|003c429999423c00|00007e99997e0000|000000ffff000000|000000ffff000000|00007e99997e0000|003c429999423c00|003c429999423c00|003c429999423c00|003c429999423c00|003c429999423c00|003c429999423c00|003c429999423c00|003c429999423c00|003c429999423c00|003c429999423c00|003c429999423c00|003c429999423c00|003c429999423c00|00007e99997e0000|000000ffff000000|000000ffff000000|00007e99997e0000|003c429999423c00|003c429999423c00|00007e99997e0000|000000ffff000000|000000ffff000000|00007e99997e0000

mjdargen

#define REST     0
#define NOTE_A0  27
#define NOTE_AS0 29
#define NOTE_B0  31
#define NOTE_C1  33
#define NOTE_CS1 35
#define NOTE_D1  37
#define NOTE_DS1 39
#define NOTE_E1  41
#define NOTE_F1  44

mjdargen

# ask for input
number = int(input("Please enter an 8-bit binary number: "))

# extract each bit
bit0 = number % 10
bit1 = number % 100 // 10
bit2 = number % 1000 // 100
bit3 = number % 10000 // 1000
bit4 = number % 100000 // 10000
bit5 = number % 1000000 // 100000