# 很潮的 Tessel

![Tessel](https://482391049-files.gitbook.io/~/files/v0/b/gitbook-x-prod.appspot.com/o/spaces%2F-M4iaeavZQiIsfq7eCxo%2Fuploads%2Fgit-blob-7adadf3004376bc0b7eff4d340c4dd640a2b9c69%2FIMG_2305.JPG?alt=media)

這個夢寐以求的版子，終於狠下心進口了！只是這小玩意兒的身世有點可憐，竟然被郵差送錯地方...而那個人也很奇怪，東西不是自己的也收下來了！還拆封！！！到底是為什麼敢拆不是自己的東西！！驗收到凌晨 4 點...好險東西都正常。

先下載 Tessel lib

```bash
npm install -g tessel
```

要更新 Tessel lib 否則會無法執行

```bash
$ tessel update
TESSEL! Connected to TM-00-04-f000da30-00544741-1ca82586.
INFO Checking for latest firmware...
INFO Wifi version is also outdated.
INFO Downloading remote file https://builds.tessel.io/wifi/1.28.bin
INFO Wifi patch uploaded... waiting for it to apply (10s)
INFO ...
INFO ...
INFO ...
INFO ...
INFO ...
INFO ...
INFO
INFO Downloading remote file https://builds.tessel.io/firmware/tessel-firmware-current.bin
INFO Updating firmware... please wait. Tessel will reset itself after the update
INFO Complete  1175988 /1175988
```

建立一個官方的範例測試

```js
// blinky.js

// Import the interface to Tessel hardware
var tessel = require("tessel");

// Set the led pins as outputs with initial states
// Truthy initial state sets the pin high
// Falsy sets it low.
var led1 = tessel.led[0].output(1);
var led2 = tessel.led[1].output(0);

setInterval(function () {
  console.log("I'm blinking! (Press CTRL + C to stop)");
  // Toggle the led states
  led1.toggle();
  led2.toggle();
}, 100);
```

OK，執行成功就會看到藍綠兩個燈在閃爍！

```bash
$ tessel run blinky.js
TESSEL! Connected to TM-00-04-f000da30-00544741-1ca82586.
INFO Bundling directory /Users/alan/Documents/tessel-code
INFO Deploying bundle (4.50 KB)...
INFO Running script...
I'm blinking! (Press CTRL + C to stop)
```

![example](https://482391049-files.gitbook.io/~/files/v0/b/gitbook-x-prod.appspot.com/o/spaces%2F-M4iaeavZQiIsfq7eCxo%2Fuploads%2Fgit-blob-7f8a0fca745e0f57af83d460ebddc8791ff02235%2FIMG_2308.JPG?alt=media)

Tessel 真的不錯，除了程式語言可以用比較熟悉的 Javascript，Module 也用`npm`管理，很順暢。整個在水準之上，看得出來團隊很用心的在開發，而我也預購了 Tessel 2 的新版子，因為我覺得非常棒。

> Apr 18th, 2015 3:49:59am