Print PDF
Facebook
Twitter
E-mail
introArduino XMAS hitcounter
Christmas is coming closer, so here is my contribution to put you in the
right mood. It is a blog hitcounter, that rings a bell. Literally. It
puts a smile on your face, every time someone hits your blog.
It consists of an Arduino board, a bell, a servo and a couple of lines of code in c, python and php. Most parts are fairly common and should be easy to get.
It consists of an Arduino board, a bell, a servo and a couple of lines of code in c, python and php. Most parts are fairly common and should be easy to get.
Remove these ads by
Signing Up.
step 1Tools and Materials
So what is needed?
- Arduino Board. I got an Arduino Diecimila from Adafruits. In the meantime there are really cheap and handy clones out there, e.g. the really bare bone board from Modern Devices, especially if you want to use them on a breadboard.
- A servo motor. Any servo will do. I took an old one that was used in my former hobby.
- A bell. Preferably one that is small enough to shake it with the servo.
- Two paperclips. A large one to hold the bell and a small one to build the actuator to ring the bell.
- Wires to connect the servo with the Arduino.
- A website. In fact it has not to be a website or a blog. Actually everything that can be counted, will work.
- A PC or a Mac to connect the Arduino board with the blog or website.
|
To Download the PDF or View All Steps, Become a Pro Member » |
hearing this every 15 seconds might get annoying :P
while (True):
_ counter = urllib.urlopen(myUrl).read()
_ delta = int(counter) - int(last_counter)
_ print "counter: %s, delta: %s" % (counter, delta)
_ ser.write(chr(ord(chr(delta))))
_ last_counter = counter
_ time.sleep(10)
It computes the delta between the last counter value and the current counter value. Say, the old value was 112, now it is 115. Next the delta, 3 is send as byte over the serial port to the Arduino. The Arduino reads the byte and rings the bell three times.
i have to ask , i didnt see it in your description. but what is your your macbook playing ?? it sounds like you have got the termnal to sing! useing the saay command???
take a look at this: http://en.wikipedia.org/wiki/File:Jingle_Bells_Or_The_One_Horse_Open_Sleigh_Complete.ogg
Cheers,
Alex