Friend Beacon Notes

rasp-beacon.md

Friendship Beacon

Hardware

• Pi3 with charging cable, sd card, and initial monitor and keyboard to set up
• miniboard
• 4 cables with pointy end and receiving end
• two resistors
• button
• led

Steps

• Set up pi with shell os to ssh
• ssh into pi and create file
• execute file

import RPi.GPIO as GPIO

GPIO.setwarnings(False)
GPIO.setmode(GPIO.BOARD)
GPIO.setup(10, GPIO.IN, pull_up_down=GPIO.PUD_DOWN)
GPIO.setup(32, GPIO.OUT)

while True: # Run forever
    if GPIO.input(10) == GPIO.HIGH:
       print("Button was pushed!")
       GPIO.output(32, GPIO.HIGH)
    else:
       GPIO.output(32, GPIO.LOW)

Commands

• username: pi
• password: raspberry
• raspi-config to setup wifi and enable ssh
• ifconfig to look up ip address
• sudo apt-get install python-rpi.gpio python3-rpi.gpio

Tutorials and links

• resistor
• button
• light
• board