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Step 4Minute 9: Connecting the dock
The Aniomagic dock connector is the smartest, smallest, and easiest way to connect an e-textile project to your iPod/iPhone. It takes two minutes to hookup, seriously.
For the curious, the dock connector is a tiny board with a PIC10F222 in SOT23 form. It uses an analog pin to detect the voltage between the two sewable holes. There's a 50kOhm pullup to the left, and ground on the right. If you use your own microcontroller, simply provide 3.7, 1.5 or 0 volts to the left hole.
The chip also speaks the "Apple Accessory Protocol" which allows it to communicate with iPods and iPhones over the dock connection. You can find out more about this protocol, dock pinouts and other documentation at:
http://stud3.tuwien.ac.at/~e0026607/ipod_remote/ipod_ap.html
http://pinouts.ru/PortableDevices/ipod_pinout.shtml
http://www.ipodlinux.org/wiki/Apple_Accessory_Protocol
We appreciate the hard work of these communities.
Like you did in the previous step, pull back the other end of yarn to expose the conductive cores.
It doesn't matter which thread one goes in which hole. Loop several times through each hole make a snug fit. Make sure the hole is completely filled. It helps to use a needle to pass the thread through.
After connecting both holes to the two strands, you'll find things in a tangle. Untangle the conductive thread, and make sure they are not touching.
Draw the wool back over the cores; retwist if needed. Remove any stray thread from the board.
Wrap clear tape over and under the board. This also helps secure the yarn and connections.
For the curious, the dock connector is a tiny board with a PIC10F222 in SOT23 form. It uses an analog pin to detect the voltage between the two sewable holes. There's a 50kOhm pullup to the left, and ground on the right. If you use your own microcontroller, simply provide 3.7, 1.5 or 0 volts to the left hole.
The chip also speaks the "Apple Accessory Protocol" which allows it to communicate with iPods and iPhones over the dock connection. You can find out more about this protocol, dock pinouts and other documentation at:
http://stud3.tuwien.ac.at/~e0026607/ipod_remote/ipod_ap.html
http://pinouts.ru/PortableDevices/ipod_pinout.shtml
http://www.ipodlinux.org/wiki/Apple_Accessory_Protocol
We appreciate the hard work of these communities.
Like you did in the previous step, pull back the other end of yarn to expose the conductive cores.
It doesn't matter which thread one goes in which hole. Loop several times through each hole make a snug fit. Make sure the hole is completely filled. It helps to use a needle to pass the thread through.
After connecting both holes to the two strands, you'll find things in a tangle. Untangle the conductive thread, and make sure they are not touching.
Draw the wool back over the cores; retwist if needed. Remove any stray thread from the board.
Wrap clear tape over and under the board. This also helps secure the yarn and connections.
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