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Project Help and Ideas » Twitter Doorbell with Photo via TwitPic
December 29, 2010 by Steven |
I'm 17 and received a NerdKit for Christmas (thanks, dad!) and quickly picked up the different style of programming and thought processes required. I remembered reading about someone using an Arduino to make a doorbell that sent a tweet when rung. I thought, can I do this with my NerdKit? Of course! (Click to see the TwitPic page) I used code examples from the Morse Code Decoder project and the Crystal Real Time Clock tutorial to read the state of the pushbutton and disable the button for a certain amount of time, and the Buttons, Switches, and Pull-up Resistors section of the Digital Calipers DRO tutorial to wire the pushbutton. Basically, the NerdKit waits until the pushbutton is pressed, sends a "Button pushed." message over the serial port, then enables interrupts and starts the clock, which essentially disables the pushbutton for a set period of time. I didn't want someone to "abuse" the button and send mass amounts of tweets and photos; this would freeze up my computer and internet connection. For testing purposes I set this to 5 seconds, but in a realistic environment you would set it higher, like a few minutes. I wrote a quick program that monitors the serial port for that "Button pressed." message, and when it finds one it will take a photo from the selected webcam, upload it to TwitPic, then tweet "Doorbell rung!" along with the time and the link to the TwitPic photo to my Twitter channel. I made a quick video you can watch on YouTube: http://www.youtube.com/watch?v=dVPgxYO7jEg And here is the link to the Twitter account I made to test it: |
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December 29, 2010 by Ralphxyz |
Steven you are awesome!! Great project. Ralph |
December 29, 2010 by hevans (NerdKits Staff) |
That is a fantastic project Steven, keep up the great work! Humberto |
January 19, 2011 by siapipa |
I'm really interested in doing this project. I just have a question on how would the signal coming through the USB from the micro controller connects with the Webcam and twitter? I'm so confuse right now. Please give me a hint on how it is done. Kayla |
March 14, 2011 by missle3944 |
Did you use Visual Basic to create the program that is in your video? |
March 22, 2011 by d3adl0ck3 |
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April 07, 2011 by Ralphxyz |
Hey Steven, could you help out Singlecoilx3 with his need to understanding sms text messaging tied to the Nerdkit like you did with your great doorbell project. Ralph |
April 07, 2011 by Ralphxyz |
OOps, sorry here is the link to Singlecoilx3's thread. Ralph |
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