突然想到小朋友在嬰兒時期，常常一個人在房間睡覺，不曉得什麼時候會哭。所以市面上有產品是偵測到嬰兒的哭聲會嗡嗡的叫，套用在 Tessel，我就想到我也可以實現了。
Tessel
用來偵測嬰兒哭的時候要觸發的事件，還沒有調整範圍。
index.js
在這邊會先跟 wifi 連線。
wifi-control.js
只要偵測到異常，就會觸發照相，然後上傳到 Slack，一整個超愛用 Slack...。相關檔案上傳可以參考文件，只需要申請一組 Token 就可以傳到指定的 channels，吃了不少苦頭，主要是不熟悉 NodeJS，不過好險最後有找到參考的。
完成！！好開心啊！
只是畫素很差...
程式碼都放到 Github 了。
May 11th, 2015 1:06:12am
Last updated
Was this helpful?
Was this helpful?
// Any copyright is dedicated to the Public Domain.
// http://creativecommons.org/publicdomain/zero/1.0/
/*********************************************
This ambient module example console.logs
ambient light and sound levels and whenever a
specified light or sound level trigger is met.
*********************************************/
var fs = require("fs");
var https = require("https");
var tessel = require("tessel");
var ambientlib = require("ambient-attx4");
var ambient = ambientlib.use(tessel.port["A"]);
var camera = require("camera-vc0706").use(tessel.port["B"]);
var notificationLED = tessel.led[1]; // Set up an LED to notify when we're taking a picture
var my_wifi = require("./wifi-control");
var send_notify = require("./send_notify");
ambient.on("ready", function () {
console.log("System will be start...");
notificationLED.high();
// Get points of light and sound data.
setInterval(function () {
ambient.getLightLevel(function (err, ldata) {
if (err) throw err;
ambient.getSoundLevel(function (err, sdata) {
if (err) throw err;
console.log(
"Light level:",
ldata.toFixed(8),
" ",
"Sound Level:",
sdata.toFixed(8)
);
});
});
}, 500); // The readings will happen every .5 seconds unless the trigger is hit
ambient.setLightTrigger(0.5);
// Set a light level trigger
// The trigger is a float between 0 and 1
ambient.on("light-trigger", function (data) {
console.log("Our light trigger was hit:", data);
// Clear the trigger so it stops firing
ambient.clearLightTrigger();
//After 1.5 seconds reset light trigger
setTimeout(function () {
ambient.setLightTrigger(0.5);
}, 1500);
});
// Set a sound level trigger
// The trigger is a float between 0 and 1
ambient.setSoundTrigger(0.2);
ambient.on("sound-trigger", function (data) {
console.log("Something happened with sound: ", data);
// Clear it
ambient.clearSoundTrigger();
//After 1.5 seconds reset sound trigger
setTimeout(function () {
ambient.setSoundTrigger(0.2);
// Take the picture
camera.takePicture(function (err, image) {
if (err) {
console.log("error taking image", err);
} else {
notificationLED.low();
var filename = "picture-" + Math.floor(Date.now() * 1000) + ".jpg";
console.log("Picture as", filename, "...");
// saved picture
// process.sendfile(filename, image);
// var image = my_camera.picture();
var send = new send_notify("Baby is crying...", filename, image);
send.post();
notificationLED.high();
sleep(5);
}
});
}, 1500);
});
});
ambient.on("error", function (err) {
console.log(err);
});
function sleep(sec) {
sec = sec * 1000;
var start = new Date().getTime();
while (true) {
if (new Date().getTime() - start > sec) {
break;
}
}
}/* the wifi-cc3000 library is bundled in with Tessel's firmware,
* so there's no need for an npm install. It's similar
* to how require('tessel') works.
*/
var https = require("https");
var wifi = require("wifi-cc3000");
var network = "Alan 的 AirPort Time Capsule"; // put in your network name here
var pass = "XXXXXXXX"; // put in your password here, or leave blank for unsecured
var security = "wpa2"; // other options are 'wep', 'wpa', or 'unsecured'
var timeouts = 0;
function connect() {
wifi.connect({
security: security,
ssid: network,
password: pass,
timeout: 30, // in seconds
});
}
wifi.on("connect", function (data) {
console.log("connect emitted", data);
});
wifi.on("disconnect", function (data) {
// wifi dropped, probably want to call connect() again
console.log("disconnect emitted", data);
});
wifi.on("timeout", function (err) {
// tried to connect but couldn't, retry
console.log("timeout emitted");
timeouts++;
if (timeouts > 2) {
// reset the wifi chip if we've timed out too many times
powerCycle();
} else {
// try to reconnect
connect();
}
});
wifi.on("error", function (err) {
// one of the following happened
// 1. tried to disconnect while not connected
// 2. tried to disconnect while in the middle of trying to connect
// 3. tried to initialize a connection without first waiting for a timeout or a disconnect
console.log("error emitted", err);
});
// reset the wifi chip progammatically
function powerCycle() {
// when the wifi chip resets, it will automatically try to reconnect
// to the last saved network
wifi.reset(function () {
timeouts = 0; // reset timeouts
console.log("done power cycling");
// give it some time to auto reconnect
setTimeout(function () {
if (!wifi.isConnected()) {
// try to reconnect
connect();
}
}, 20 * 1000); // 20 second wait
});
}$ tessel run index.js --upload-dir ./
TESSEL! Connected to TM-00-04-f000da30-00544741-1ca82586.
INFO Bundling directory /Users/alan/SourceTree/baby-help
INFO Deploying bundle (530.00 KB)...
INFO Running script...
System will be start...
Light level: 0.01464844 Sound Level: 0.01855469
Light level: 0.01464844 Sound Level: 0.01855469
Light level: 0.01562500 Sound Level: 0.01855469
Light level: 0.01562500 Sound Level: 0.01855469
connect emitted {
dns : 168.95.192.1,
ip : 192.168.1.46,
event : status,
connected : 1,
dhcp : 192.168.1.1,
ssid : Alan 的 AirPort Time Capsule,
gateway : 192.168.1.1
}
Light level: 0.01464844 Sound Level: 0.01855469
Light level: 0.01464844 Sound Level: 0.01855469
Light level: 0.01562500 Sound Level: 0.01855469
Light level: 0.01562500 Sound Level: 0.01855469
Light level: 0.01464844 Sound Level: 0.01855469
Light level: 0.01562500 Sound Level: 0.01855469
Light level: 0.01464844 Sound Level: 0.01855469
Light level: 0.01562500 Sound Level: 0.02050781
Something happened with sound: 0.1005859375
Light level: 0.01562500 Sound Level: 0.01855469
Light level: 0.01562500 Sound Level: 0.01855469
Light level: 0.01464844 Sound Level: 0.01855469