Seven Segment Display

BCD and Seven Segment Displays

Assignment:

• Map out a Seven Segment Display and be able to display the number 3.
• Complete the pin mapping, take a photo and post it to the shared Google Drive Class folder.
• Connect your Seven Segment Display to the Raspberry Pi and cycle through each number using the following starter code to get started.
• Show your instructor and collect a 6-digit 7-segment display.
• Map out the new display's pins
• Connect your 6-digit display to your Raspberry Pi.
• Write code to cycle through the digits 1-7 on all of the digits (ie: 000000, 111111, 222222, etc.)
• Write code to display different digits at the same time.
• Write code to scroll numbers across the digits.
• Write code to display your current IP Address on boot.

Note: Much of the starter code is available on this site to get you started.

Starter Python Code for programming a single-digit seven-segment display using Raspberry Pi

#!/usr/bin/python

import RPi.GPIO as GPIO

from time import sleep

GPIO.setmode(GPIO.BOARD)

# Define Pins

segmentA = 7

segmentB = 11

# Set up Pins

GPIO.setup(segmentA,GPIO.OUT)

GPIO.setup(segmentB,GPIO.OUT)

# Define functions

def turnOn(segmentList) :

  for x in segmentList :

    whichSegment = 'segment'+x

    GPIO.output(eval(whichSegment),GPIO.LOW)

  return

def turnOff(segmentList) :

  for x in segmentList :

    whichSegment = 'segment' + x

    GPIO.output(eval(whichSegment),GPIO.HIGH)

  return

def display(whichNumber) :

  turnOff(['A','B','C','D','E','F','G','H'])

  if (whichNumber == 0) :

    turnOn(['A','B','C','D','E','F'])

  elif (whichNumber == 1) :

    turnOn(['A','B'])

  else :

    turnOn(['H'])

  return

//Cycle through the numbers

//for num in range(0,10) :

//  display(num)

//  sleep(1)

GPIO.cleanup()