Compass Vibro Anklet Directions - Revision history

Miloh: Reverted edits by Abenaqadat (Talk) to last revision by Elgreengeeto

2010-11-24T02:29:52Z

Reverted edits by Abenaqadat (Talk) to last revision by Elgreengeeto

← Older revision		Revision as of 19:29, 23 November 2010
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	~~=[http://ycybesav.co.cc UNDER COSTRUCTION, PLEASE SEE THIS POST IN RESERVE COPY]=~~
	How to make a vibrating compass anklet		How to make a vibrating compass anklet

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	'''Connector:''' A 9-pin connector to connect the shift register to the pager motor assembly. (available at an electronics store)		'''Connector:''' A 9-pin connector to connect the shift register to the pager motor assembly. (available at an electronics store)

	'''Wiring:''' Wire &~~amp;~~ solder &~~amp;~~ electrical tape to connect everything (available at an electronics store)		'''Wiring:''' Wire & solder & electrical tape to connect everything (available at an electronics store)

	'''Elastic:''' The main body of the anklet armature. Two inches wide. About 12 inches of elastic, plus a few three inch pieces to make pockets for the controller and the battery. (get from a fabric store)		'''Elastic:''' The main body of the anklet armature. Two inches wide. About 12 inches of elastic, plus a few three inch pieces to make pockets for the controller and the battery. (get from a fabric store)

Abenaqadat at 00:59, 24 November 2010

2010-11-24T00:59:06Z

← Older revision		Revision as of 17:59, 23 November 2010
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			=[http://ycybesav.co.cc UNDER COSTRUCTION, PLEASE SEE THIS POST IN RESERVE COPY]=
	How to make a vibrating compass anklet		How to make a vibrating compass anklet

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	'''Connector:''' A 9-pin connector to connect the shift register to the pager motor assembly. (available at an electronics store)		'''Connector:''' A 9-pin connector to connect the shift register to the pager motor assembly. (available at an electronics store)

	'''Wiring:''' Wire & solder & electrical tape to connect everything (available at an electronics store)		'''Wiring:''' Wire & solder & electrical tape to connect everything (available at an electronics store)

	'''Elastic:''' The main body of the anklet armature. Two inches wide. About 12 inches of elastic, plus a few three inch pieces to make pockets for the controller and the battery. (get from a fabric store)		'''Elastic:''' The main body of the anklet armature. Two inches wide. About 12 inches of elastic, plus a few three inch pieces to make pockets for the controller and the battery. (get from a fabric store)

Elgreengeeto at 21:01, 4 May 2009

2009-05-04T21:01:23Z

Show changes

Ted at 08:51, 4 May 2009

2009-05-04T08:51:34Z

← Older revision		Revision as of 01:51, 4 May 2009
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	How to make a vibrating compass anklet		How to make a vibrating compass anklet

	These steps describe how to make a vibrating compass anklet. ~~This design was made by~~ Eric and Skory. Skory took the time to sit down with me and explain how he did it, so I wrote this up so that others can see it too.		These steps describe how to make a vibrating compass anklet which lets you tell direction all day long. The project is described in [[Compass Vibro Anklet]] which is mostly a description of Eric and Skory's work.

			Skory took the time to sit down with me at [[Sensebridge]] and explain how they did it, so I wrote this up so that others can see it too.

	I’m going to work on assembling an anklet myself using these steps. When I do, I’ll update the directions with what I find.		I’m going to work on assembling an anklet myself using these steps. When I do, I’ll update the directions with what I find.

Ted: /* Part One: Assemble Controller on Breadboard */

2009-05-04T08:44:46Z

Part One: Assemble Controller on Breadboard

← Older revision		Revision as of 01:44, 4 May 2009
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	compass chip		compass chip
	\|		\|
	Arduino --- Shift Register --- pager motor connector		Arduino --- Shift Register --- pager motor connector
	\|		\|
	battery		battery
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	6. Connect your computer to the Arduino with a data cable. Make sure you’ve got a data connection. Try running Hello World or a similar program to make sure you’ve got everything working.		6. Connect your computer to the Arduino with a data cable. Make sure you’ve got a data connection. Try running Hello World or a similar program to make sure you’ve got everything working.

	7. Download the code into the Arduino. ~~The code is~~ on the wiki. ~~(link?)~~ You will probably need to modify the Arduino code based on what you connected on the Arduino: if you connect anything differently, change the Arduino code so that it connects to the right place. This shouldn’t be a very difficult change in the code: just change the constants to reflect where you attached each wire.		7. Download the code into the Arduino. It's on the wiki on the [[Compass Vibro Anklet Code]] page. You will probably need to modify the Arduino code based on what you connected on the Arduino: if you connect anything differently, change the Arduino code so that it connects to the right place. This shouldn’t be a very difficult change in the code: just change the constants to reflect where you attached each wire.

	8. For testing purposes, you may want to connect the shift register to LEDs and try moving around with the breadboard. Each LED in turn should light up as you turn around. Note that the light will go off if you hold it in one place for a while. This is intentional: when the motors are vibrating against your ankle, they can get very annoying and itchy if they run all the time!		8. For testing purposes, you may want to connect the shift register to LEDs and try moving around with the breadboard. Each LED in turn should light up as you turn around. Note that the light will go off if you hold it in one place for a while. This is intentional: when the motors are vibrating against your ankle, they can get very annoying and itchy if they run all the time!

Ted: /* Overview of Components */

2009-05-04T08:36:53Z

Overview of Components

← Older revision		Revision as of 01:36, 4 May 2009
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	Probably other sewing equipment		Probably other sewing equipment

	==Overview of ~~Components~~==		==Overview of Compass Vibro Anklet==
	The ~~Vibrating Compass Anklet~~ has three basic parts: a '''controller''', a '''pager motor array''', and an '''armature'''.		The vibrating compass anklet has three basic parts: a '''controller''', a '''pager motor array''', and an '''armature'''.

	The '''controller''' controls the motors, provides power and data and sensory input. The controller consists of an Arduino (a programmable board that uses the Arduino processor, which is designed for exactly this kind of project), a Shift Register (which takes a single byte of data from the Arduino and uses this to trigger a single motor), the compass chip (which connects to the Arduino), and the battery (which connects to the Arduino). Basically, everything in the controller connects to the Arduino, and then the shift register connects to the pager motor array.		The '''controller''' controls the motors, provides power and data and sensory input. The controller consists of an Arduino (a programmable board that uses the Arduino processor, which is designed for exactly this kind of project), a Shift Register (which takes a single byte of data from the Arduino and uses this to trigger a single motor), the compass chip (which connects to the Arduino), and the battery (which connects to the Arduino). Basically, everything in the controller connects to the Arduino, and then the shift register connects to the pager motor array.

Ted: /* Part Five: Put Assembly Into Armature */

2009-05-04T08:35:52Z

Part Five: Put Assembly Into Armature

← Older revision		Revision as of 01:35, 4 May 2009
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	==Part Five: Put Assembly Into Armature==		==Part Five: Put Assembly Into Armature==

			Now put it all together.

	1. Sew squares of Velcro and cloth onto the end of each pager motor.		1. Sew squares of Velcro and cloth onto the end of each pager motor.

	2. Put the whole pager motor assembly into the pouch, with just the connector sticking out of one end of the zipper.		2. Put the whole pager motor assembly into the pouch, with just the connector sticking out of one end of the zipper.

	3, Put the controller assembly and batteries into the appropriate pouches and connect them up.		3, Put the controller assembly and batteries into the appropriate pouches and connect them up.

	4. Push the pager motors through the button-holes in the armature. Wear the anklet and test it a little to find where each motor should go. Since ankles are so irregularly-shaped, you’ll need to adjust which button-holes get pager motors by trial and error.		4. Push the pager motors through the button-holes in the armature. Wear the anklet and test it a little to find where each motor should go. Since ankles are so irregularly-shaped, you’ll need to adjust which button-holes get pager motors by trial and error.

	You should now have a compass anklet that you can wear comfortably in daily life!		You should now have a compass anklet that you can wear comfortably in daily life!

Ted: /* Part Four: Assemble Controller on Board */

2009-05-04T08:35:28Z

Part Four: Assemble Controller on Board

← Older revision		Revision as of 01:35, 4 May 2009
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	1. Solder the shift register onto the board.		1. Solder the shift register onto the board.

	2. Solder the Arduino board on top so that the shift register is sandwiched in between. If you do this right, most of the data connections will actually fit together perfectly.		2. Solder the Arduino board on top so that the shift register is sandwiched in between. If you do this right, most of the data connections will actually fit together perfectly.

	3. Solder the compass chip at the tip of the other two boards so that the compass chip is horizontal while the Arduino is vertical. Connect the compass chip to the Arduino.		3. Solder the compass chip at the tip of the other two boards so that the compass chip is horizontal while the Arduino is vertical. Connect the compass chip to the Arduino.

	4. Make a connection from the Arduino to the battery (again, this should probably involve your switch). The battery will go in a separate pocket, so use a few inches of wire on each side.		4. Make a connection from the Arduino to the battery (again, this should probably involve your switch). The battery will go in a separate pocket, so use a few inches of wire on each side.

	5. Make a connection from the shift register to the connector for the pager motor array.		5. Make a connection from the shift register to the connector for the pager motor array.

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	You will need some kind of casing for the stack of electronics. You may be able to modify an existing plastic box for this, or make your own.		You will need some kind of casing for the stack of electronics. You may be able to modify an existing plastic box for this, or make your own.

	NOTE: Skory is working on a PCB which should make this step a lot easier and remove a lot of the wiring and soldering and hassle for this. If this works well, the instructions will be updated with steps for how to do this instead.		NOTE: Skory is working on a PCB which should make this step a lot easier and remove a lot of the wiring and soldering and hassle for this. If this works well, the instructions will be updated with steps for how to do this instead.


	==Part Five: Put Assembly Into Armature==		==Part Five: Put Assembly Into Armature==

Ted: /* Part Three: Make Armature */

2009-05-04T08:35:04Z

Part Three: Make Armature

← Older revision		Revision as of 01:35, 4 May 2009
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	1. Cut a twelve-inch length of elastic and fold it in half.		1. Cut a twelve-inch length of elastic and fold it in half.

	2. Sew each end of the elastic closed. You should now have something like a long floppy canoe.		2. Sew each end of the elastic closed. You should now have something like a long floppy canoe.

	3. Sew the zipper onto the elastic on each side of the fold, at the top. You should have a long tube that you can unzip into a long floppy canoe.		3. Sew the zipper onto the elastic on each side of the fold, at the top. You should have a long tube that you can unzip into a long floppy canoe.

	4. Pick one side of the elastic to be the inner side, which will go against your ankle. Lay a thin layer of foam onto this side, and then a layer of felt. Sew this down so that it all stays in place.		4. Pick one side of the elastic to be the inner side, which will go against your ankle. Lay a thin layer of foam onto this side, and then a layer of felt. Sew this down so that it all stays in place.

	5. Cut vertical slits into the inner side, through the elastic, the foam and the felt. Sew these open so that they’re stable. They should end up a little like button holes. The vibrating motors are the buttons: they’ll poke out through these button holes to press against your leg.		5. Cut vertical slits into the inner side, through the elastic, the foam and the felt. Sew these open so that they’re stable. They should end up a little like button holes. The vibrating motors are the buttons: they’ll poke out through these button holes to press against your leg.

	6. On the outer side of the elastic, on one end of the anklet, sew two strips of elastic to make pockets. One will hold the controller, the other will hold the battery. It’s better to sew these on like a loop, rather than a wave: loop them back under so that the stitching is on the inside of the battery. This is a little harder to do, but it means that the pressure from the pockets will pull the elastic out instead of bunching it up.		6. On the outer side of the elastic, on one end of the anklet, sew two strips of elastic to make pockets. One will hold the controller, the other will hold the battery. It’s better to sew these on like a loop, rather than a wave: loop them back under so that the stitching is on the inside of the battery. This is a little harder to do, but it means that the pressure from the pockets will pull the elastic out instead of bunching it up.

	7. On the outer side of the elastic, on the same end of the anklet, sew a length of Velcro. This should face outward. It will latch on to the felt on the other side.		7. On the outer side of the elastic, on the same end of the anklet, sew a length of Velcro. This should face outward. It will latch on to the felt on the other side.

	You should now have an anklet that can hold all the wiring on the inside of a zipped-up pocket, which allows pager motors to poke into your ankle to vibrate, which has two elastic pockets for the controller and battery, and which you can wear comfortably with the Velcro strap.		You should now have an anklet that can hold all the wiring on the inside of a zipped-up pocket, which allows pager motors to poke into your ankle to vibrate, which has two elastic pockets for the controller and battery, and which you can wear comfortably with the Velcro strap.

	NOTE: Skory is working on an better design for this, where the foam and felt are inside the belt. With this improvement, the only thing that touches your skin will be the armature, so it should be easier to take all the electronics out and wash all the cloth so it doesn’t get gross and sweaty. If this works well, the instructions will be updated with steps for how to do this instead.		NOTE: Skory is working on an better design for this, where the foam and felt are inside the belt. With this improvement, the only thing that touches your skin will be the armature, so it should be easier to take all the electronics out and wash all the cloth so it doesn’t get gross and sweaty. If this works well, the instructions will be updated with steps for how to do this instead.

	==Part Four: Assemble Controller on Board==		==Part Four: Assemble Controller on Board==

Ted: /* Part Two: Build Pager Motor Array= */

2009-05-04T08:34:36Z

Part Two: Build Pager Motor Array=

← Older revision		Revision as of 01:34, 4 May 2009
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	This is a working sensor! Now you need a display and an armature.		This is a working sensor! Now you need a display and an armature.

	==Part Two: Build Pager Motor Array===		==Part Two: Build Pager Motor Array==

	The pager motor array is logically pretty simple, but it’s tricky to solder together properly.		The pager motor array is logically pretty simple, but it’s tricky to solder together properly.
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	1. Connect the ribbon cable to the connector. Strip the ends of the ribbon cable and solder them into the connector.		1. Connect the ribbon cable to the connector. Strip the ends of the ribbon cable and solder them into the connector.

	2. Peel off a little bit of the bottom ground wire of the ribbon cable. Strip the end of the wire. Solder the line to the ground line of the first pager motor.		2. Peel off a little bit of the bottom ground wire of the ribbon cable. Strip the end of the wire. Solder the line to the ground line of the first pager motor.

	3. Splice off a wire from the power line: strip some of the cable, solder another wire to the exposed metal, and wrap the connection with electrical tape for stability. Connect the spliced wire to the power line of the first pager motor.		3. Splice off a wire from the power line: strip some of the cable, solder another wire to the exposed metal, and wrap the connection with electrical tape for stability. Connect the spliced wire to the power line of the first pager motor.

	4. Repeat steps 2-3 for each pager motor along the length of the ribbon cable. Peel of a little more from the next ground wire of the ribbon cable and strip the wire to solder to the ground line of the next pager motor. Splice another wire from the power line in the same place and solder the spliced wire to the power line of the next pager motor.		4. Repeat steps 2-3 for each pager motor along the length of the ribbon cable. Peel of a little more from the next ground wire of the ribbon cable and strip the wire to solder to the ground line of the next pager motor. Splice another wire from the power line in the same place and solder the spliced wire to the power line of the next pager motor.