Your best Arduino tricks

I wrote an arduino sketch that lets my arduino collect dust in my drawer.

>>51456577
I wrote one that makes blink a led every 2 seconds, I applied to Harvard but they were afraid that I would bomb the campus

>>51456597
Lol

File: 892991578.jpg (32KB, 400x422px) Image search: [Google] [Yandex] [Bing]

32KB, 400x422px

I tried to use one to make a pipboy local mapping function with a ping sensor.

>implying anyone on /g/ actually creates anything instead of just consuming

>>51456769
you should post the code for 'proof'

>>51456830

# import time module
import time

# import gpio module
import RPi.GPIO as GPIO

# start time variable
alpha = 0

# stop time variable
beta = 0

# total time variable
gamma = 0

# while loop control failsafe variable
delta = 0

# distance in centimeters
distCM = 0

# distance in inches
distIN = 0

# set up gpio pin 11 as output to parallax ping
GPIO.setup(11, GPIO.OUT)

# be sure there is no signal to parallax ping: pin 11, 0 = False
GPIO.output(11, 0)

# send parallax ping a high signal: pin 11, 1 = True
GPIO.output(11, 1)

# set up gpio pin 11 as input from parallax ping
GPIO.setup(11, GPIO.IN)

GPIO.input(11)

# while gpio is false(0)
while GPIO.input(11) == 0 and delta < 20:
    delta = delta + 1
    print "A", delta
else:
    # start time
    alpha = time.time()

delta = 0

# while gpio is true(1) and delta loop control failsafe is less than 20
while GPIO.input(11) == 1 and delta < 20:
    # add one to delta as while loop failsafe
    delta = delta + 1
    print "B", delta
else:
    # stop time
    beta = time.time()
    # calculate total time
    gamma = beta - alpha
    # print parallax ping value
    print gamma

# Alucard
print "What!"

# calculate centimeters from time traveled
distCM = (34480 * gamma) / 2

# print distance in centimeters
print "%.1f" % distCM, "centimeters"

# calculate inches from centimeters
distIN = distCM / 2.54

# print distance in inches
print "%.1f" % distIN, "inches"

>>51456843
fake

>>51456905
It was a Raspberry Pi with a Ping sensor connected to it. The product failed when the Pi I realized couldn't handle the proper timing. It also had an arduino temp sensor I was working on.

I programmed one to control LED lights on my stairs wirelessly when it senses movement.