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I wrote this README.MD file to help my team members by streamlining the learning process with Tessel and its modules. Our group won the most creative award at the TesselHackathon, hosted by Fullstack Academy. We built a version of labyrinth with an accelerometer, servo modules, and some cardboard.

Hardware: Tessel

Modules: Camera Servo Servo Motor Accelerometer Ambient Sensor

Team manager: Sam Ballan

Team members: Dane Tomseth Haily Keen Laura Weiner Matthew Starr Richard Song

Install NVM: 1st, make certain your bash profile is setup: touch ~/.bash_profile

Then.. run the install script. Copy and paste this in terminal curl -o- https://raw.githubusercontent.com/creationix/nvm/v0.31.0/install.sh | bash

Then.. install a later version of Node nvm install 0.12.x (x = version, 0.12 should work)

Debugging the WIFI....

  • tessel wifi -d (disconnect)
  • power cycle
  • tessel wifi -d (disconnect)
  • tessel wifi -l (list wifi networks)
  • tessel erase (clear the tessel);

Start instructions: Install the command line interface: npm install -g http://s3.amazonaws.com/builds.tessel.io/cli/tessel-cli-current.tar.gz

Tessel 1 Docs: https://github.com/tessel/t1-docs

Connect Tessel to WiFi: https://github.com/tessel/t1-docs/blob/master/wifi.md

Commands: tessel tessel list tessel logs tessel push [options] tessel repl tessel wifi -n -p [-s <security (wep/wpa/wpa2 by default)>] tessel wifi -n tessel wifi -l (lower case L) tessel wifi -d (disconnect) tessel pack tessel check tessel blink

Options: -a, --args Arguments to passin as process.argv -q, --quiet [Tessel] Hide tessel deployment messages -m, --messages [Tessel] Forward stdin as child process messages -l, --logs [Tessel] Stay connected and print logs -s, --single [Tessel] Push a single script file to Tessel -h, --help Show usage for tessel push -u --upload-dir Directory where uploads from process.sendfile should be saved

Deploying

When a host computer deploys code to Tessel (either via the run or push command), the host computer bundles up the entire "project directory" and sends it to the Tessel. The CLI must wrap up all the dependencies (node_modules and subfolders) before sending the project over because the Tessel has no mechanism for fetching them from the host computer once the script has initiated on Tessel. The CLI defines the root of a "project directory" as the highest level folder that contains a node_modules folder or a package.json (note: if you pass the -s flag, only a single file is sent). This means that when tessel run or tessel push is called, the CLI will traverse up the directory tree until it finds a folder that matches that criteria. It will not bundle the home folder of a filesystem because it's probably greater than the 32MB available on Tessel.

If you're having trouble figuring out which files are being sent to Tessel, use the tessel pack command.

Remember to npm install to get all of the node_modules listed in the package.json_

Tessel repo: https://github.com/tessel/t1-docs

Servo library: npm install servo-pca9685 https://github.com/tessel/servo-pca9685

Accelerometer library: npm install accel-mma84 https://github.com/tessel/accel-mma84

Ambient sensor library: npm install ambient-attx4 https://github.com/tessel/ambient-attx4

Camera library: npm install camera-vc0706 https://github.com/tessel/camera-vc0706