Open Totem

profile_sherrymunson57 - created

2018-07-04T04:54:49+02:00

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2018-06-24T20:37:53+02:00

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2018-06-13T05:47:35+02:00

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2018-06-09T12:33:45+02:00

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2018-06-08T20:23:27+02:00

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2018-06-08T19:39:58+02:00

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2018-06-06T21:40:26+02:00

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2018-06-06T21:33:51+02:00

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about_totem_modules

2017-12-02T21:39:03+02:00

Low-cost, hackable, and accessible tangible interaction prototyping kit

Open Totem modules are an answer to the lack in the tangible interaction prototyping toolkit of modules that are both:

easy to use for complete beginners, giving them a way to build a prototype in minutes
cheap/easy to build and fix themselves, using accessible parts anyone can buy.

Low-cost and build out of accessible parts

Build a prototype in minutes

Improve, transform, add new modules

Since the first 3 basic modules – Battery, LED and motor – new modules have been tested during following workshop using Open Totem modules. For example a Buzzer module, a Tilt Switch module.

Students also added their own idea, like a 'blowing-detector' module quickly prototyped in the process of creating «Soufflerie» a team game based on blowing and taking a breath a the right moment.

start

2017-12-02T21:34:23+02:00

Totem modules are simple electronic modules to be used in workshops, in class, at home or for any prototyping purposes. They are useful when you need cheap, easy to use electronics module that *don't* turn circuits into magic black-boxes. All documentation about Totem modules is under CC-BY-SA, so you are free to share and use it.

The first version was designed for a 250 persons workshop at Pompidou Center in Paris, “Je suis une vraie pile électrique !” (yes, that's two hundred and fifty beta-testers. Cool, isn't it? )

Since then Totems modules have been used in workshops with design students, art school students, in a classroom, at a science fair…

opentotem.org is a wiki and you can register to edit, add and improve it!

About: Why Totem modules? What are they?

What can I do with Totem modules? Example activities

What have been created with Totem modules? Check games, prototypes and other crazy stuff!

Build your own modules

Buy modules and activity kits

Ask for a workshop

Totem modules can be used in many ways. We already have tested two different activities based on them during “je suis une vraie pile électrique !”. We also learned than they can be connected in different ways: by using crocodile cables; by putting them on a aluminum track; or by simply making them touch each others. It would be cool to test making connection using conductive ink or metal rails!

There's obviously more to explore! There's new activities to invent and new modules to build - what about sensors? Or buzzers? A fool-proof led module that works both ways would be nice for the kids, and quite simple to design and share.

Please join the site and share your ideas.

You can ask Julien any question about Open Totem and Totem modules on twitter: @juliendorra

Or add your question to the FAQ and we will answer it!

build - [Cutting]

2017-12-02T21:20:17+02:00

Here is a list of Totem modules you can build using simple and readily available materials

Basic modules

These modules are great as a way to start exploring, including for children, students, beginners.

Battery module – 9v battery, marked with arrows representing the current flow direction

Double LED module – Two LEDs in series, marked with arrows representing the current flow direction

Led and resistor module – One LED and a resistor to avoid burning the LED. Marked with arrows representing the current flow direction

Motor module – Various motors

Open circuit module – To be used as a switch with aluminum tape, by covering fingers with aluminum, metal object, etc.

Blowing switch module – Blow on the little strip of aluminum tape, it touch the base and close the circuit. Derived from the open circuit module by design students during a Totem workshop, they then created a collaborative game called Soufflerie based on the idea: Soufflerie

Advanced modules

These modules are best introduced when participants have created at least a couple of things with the basic modules.

Buzzer module – Make horrible, annoying sounds Kids love it, but for everyone sanity it's better to use very few of them in a group workshop. They are nevertheless great for prototyping games: Prototyped games. Marked with arrows representing the current flow direction as buzzers are directional.

Tilt switch module – The circuit is off or on depending on the angle of the module. Very useful to create simple interactive gesture-based prototypes. You can combine several of them to test for different angles and movement. Internally, they are just a tube with a small metal ball, rolling against 2 connectors, so it's still a very cheap and simple component.

RGB LED module – Using a RGB LED allows to easily switch between 3 colors with different switches. Fine color mixing is not possible, but this module as been used with success in the Soufflerie prototype to help spectators to visualize the constant change of which player ares blowing. Marked with arrows representing the current flow direction

Created but not yet tested during workshop

Vibration – The same vibration micro-motors that is in your phone.

Motor speed variator – A frequent request in workshops is to slow down motors. Adding resistors or LEDs to the circuit doesn't work as below the starting voltage the motor will just stop. A solution is to add a PWM-based speed variator in the circuit. As it is a complex component by itself, with 4 connections, it is best to introduce it at a later stage, when motor speed is a roadblock.

Materials for the base

Foam board 3mm up to 5mm. Thicker foam board, for example 10mm, won't work well with small crocodile cables.

Aluminum adhesive tape

Tools

Glue gun to glue the components

Scissors

Cutting

Manually: You can cut Totem bases using a rotative cutting blade. Foamwerk sell one that work well. It's relatively cheap, easy and can be done anywhere.

Laser cutter: You can also use a laser cutter. It'll allow you to cut more complex designs like the (beveled disc base. The foam retract with heat: set your laser to a very low power and use several passes to cut the foam.

Water cuter They work better than laser cutters as they don't burn the foam. But they are much rarer than laser cutters.

Mechanical cutter: Not Tested. Please help by testing with the beveled disc base and reporting here!

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