Demo of trivial IOIO interaction.

Please see README for more information.
2026-03-26 13:19:49 +07:00 · 2012-07-04 16:27:06 -04:00
parent aedc469948
commit 05eec5a159
5 changed files with 125 additions and 0 deletions
--- a/ioio/README
+++ b/ioio/README
@@ -0,0 +1,13 @@
+- Very simple IOIO client
+
+- Tested with this hardware:
+http://www.adafruit.com/blog/2012/06/15/new-product-ioio-mint-portable-android-development-kit/
+
+- Constants/protocol taken from:
+https://github.com/ytai/ioio/wiki/
+
+Caveats:
+- The bluetooth API is only available on Chrom(e|ium)OS
+- Resource clean-up isn't happening properly yet: you will likely have to disable/enable bluetooth between runs of the program or the connection will fail
+
+Questions/comments: bryeung@chromium.org
--- a/ioio/background.js
+++ b/ioio/background.js
@@ -0,0 +1,6 @@
+chrome.experimental.app.onLaunched.addListener(function() {
+  chrome.appWindow.create('index.html', {
+    width: 640,
+    height: 480
+  });
+});
--- a/ioio/index.html
+++ b/ioio/index.html
@@ -0,0 +1,6 @@
+<html>
+  <body>
+    <pre id="log"></pre>
+  </body>
+  <script src="main.js"></script>
+</html>
--- a/ioio/main.js
+++ b/ioio/main.js
@@ -0,0 +1,86 @@
+function log(msg) {
+  var msg_str = (typeof(msg) == 'object') ? JSON.stringify(msg) : msg;
+  console.log(msg_str);
+
+  var l = document.getElementById('log');
+  if (l) {
+    l.innerText += msg_str + '\n';
+  }
+}
+
+var kUUID = '00001101-0000-1000-8000-00805f9b34fb';
+
+var level = 1;
+var pin = 0;
+function runAtInterval(socket) {
+  return function() {
+    var buffer = new ArrayBuffer(4);
+    var view = new Uint8Array(buffer);
+
+    // Set the level of pin0 to level
+    // constants taken from here:
+    // https://github.com/ytai/ioio/wiki/
+    view[2] = 4;
+    view[3] = pin << 2 | level;
+    level = (level == 0) ? 1 : 0;
+
+    chrome.experimental.bluetooth.write({socketId:socket.id, data:buffer},
+        function(bytes) {
+          if (chrome.runtime.lastError) {
+            log('Write error: ' + chrome.runtime.lastError.message);
+          } else {
+            log('wrote ' + bytes + ' bytes');
+          }
+        });
+  };
+}
+
+var socketId_;
+var intervalId_;
+var connectCallback = function(socket) {
+  if (socket) {
+    log('Connected!  Socket ID is: ' + socket.id + ' on service ' +
+        socket.serviceUuid);
+    socketId_ = socket.id;
+
+    // Set pin0 as output.
+    var buffer = new ArrayBuffer(2);
+    var view = new Uint8Array(buffer);
+    // constants taken from here:
+    // https://github.com/ytai/ioio/wiki/
+    view[0] = 3;
+    view[1] = pin << 2 | 2;
+    chrome.experimental.bluetooth.write({socketId:socket.id, data:buffer},
+        function(bytes) {
+          if (chrome.runtime.lastError) {
+            log('Write error: ' + chrome.runtime.lastError.message);
+          } else {
+            log('wrote ' + bytes + ' bytes');
+          }
+        });
+
+    intervalId_ = window.setInterval(runAtInterval(socket), 1000);
+  } else {
+    log('Failed to connect.');
+  }
+};
+
+var connectToDevice = function(result) {
+  if (chrome.runtime.lastError) {
+    log('Error searching for a device to connect to.');
+    return;
+  }
+  if (result.length == 0) {
+    log('No devices found to connect to.');
+    return;
+  }
+  for (var i in result) {
+    var device = result[i];
+    log('Connecting to device: ' + device.name + ' @ ' + device.address);
+    chrome.experimental.bluetooth.connect(
+        {deviceAddress: device.address, serviceUuid: kUUID}, connectCallback);
+  }
+};
+
+log('Starting IOIO demo...');
+chrome.experimental.bluetooth.getDevices({uuid: kUUID}, connectToDevice);
--- a/ioio/manifest.json
+++ b/ioio/manifest.json
@@ -0,0 +1,14 @@
+{
+  "manifest_version": 2,
+  "name": "IOIO Demo",
+  "description": "Blinks the on-board LED",
+  "version": "1.0",
+  "app": {
+    "background": {
+      "scripts": ["background.js"]
+    }
+  },
+  "permissions": [
+    "experimental"
+  ]
+}