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The first time I read about Syrian Lingerie I was quite moved. In the West, we often think of Arab cultures as sexually repressed societies, when - in...
Before I make anything, I always look for existing devices that already exist that I can model my project after. I knew clap-off bras clearly already...
You will need: A front opening strapless under-wire bra Black fabric Small nut and bolt (x2) Prototype circuit boards An Arduino (w/ATMEGA168 DIP ch...
Cut the clasp off of the bra using cutting pliers (or similar).
Carefully break open the casing for the relay to expose the electromagnet. To avoid damaging the coil, You should start cracking open the case on the...
Put your relay into the center of one of the prototype circuit boards and make cut marks around the outline of the relay. These will be used in a mom...
Cut your two prototype circuit boards down to size. To do this I use a paper cutter (or what I like to call a "chomper"). If you don't have a paper c...
Put together the circuit using the 28 pin socket in place of the ATMEGA168 chip (for the time being). Also, don't worry about the electromagnet and ...
Take your USB cable and cut off each end such that you are left with a section of cable roughly 6" to 8" long.
Cut a small bow-tie shaped section of fabric that will fold over the one of the existing sections of fabric in the front of the bra (the part the cla...
Insert the bolt through the grommet from the back towards the front. Fasten it with a nut.
Fold the bow-tie over the fabric section in the front of the bra that used to hold one side of the clasp. Sew the fabric down to the bra over the exi...
Make sure that the nut and bolt are fastened tight. Using a hacksaw or rotary tool, cut the bolt flush with the nut.
Twist of the nut and apply threadlocker to the threading of the bolt. Twist the nut firmly back on.
Peel back the jacket of the USB cable to expose 4-colored wires. Attach these wires to the circuit board as follow: Green - 2N3904 transistor groun...
Download the attached code and upload it to your Arduino board.
Transfer the ATMEGA168 chip from the Arduino board to the socket on the circuit board.
Solder the electromagnet and electret microphone to the smaller circuit board.
Remove 2" - 3" of jacket from the free end of USB cable. Epoxy the colored wires the small circuit board, such that you still have some wiggle room t...
Solder the wires to the circuit board as follows: White - Microphone signal Green - Microphone ground Red - Electromagnet coil Black - Electromagnet...
Sew down the small electromagnet board to the fabric in the front of the bra to which the clasp used to attach (and the one not with a nut and bolt a...
Lay down a strip of fabric beneath the long circuit board such that it protrudes 1" past the board on each end. Slide the 1" diameter shrink tubing o...
Sew the USB cable along the underside of the bra until you reach the end of the cup. Repeat this stitch a few times so it is nice and strong and then...
Sew the circuit board to the top of the back strap of the bra. Attaching it to just the top avoids bunching.
Sew your elastic straps perpendicular to the bra strap at the top and bottom (such that it will hold the battery). When you are done, slide the 9V ba...
Take your ribbon and make a bow large enough to hide the electromagnet in the front of the bra. If, like me, you don't know how to make a bow, find s...
Attach the bow to the top of the electromagnet by using strong permanent double-sided tape or hot glue.
Plug in the battery. Put the bra on as per normal using the electromagnetic clasp. When you are ready for it to come off, simply clap twice. If you ...
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