Firebase - realtime backend for mobile app and IoT
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The document discusses the use of Firebase for real-time applications in mobile and IoT contexts, illustrated through various demos including a photo-sharing app and a LED control setup using Raspberry Pi. It emphasizes Firebase's capabilities with a real-world demonstration and provides code snippets for integrating Firebase with hardware. Additionally, it promotes educational resources and workshops offered by Dycode.
![Code
function setState(state) {
ledValue = +state; //convert true/false to appropriate integer
wpi.digitalWrite(ledPin, ledValue);
}
var deviceId = "smartlamp1";
var myFirebaseRef = new Firebase(“https://[YOUR_FIREBASE].firebaseio.com/devices”);
var deviceRef = myFirebaseRef.child(deviceId);
var myDevParamsRef = deviceRef.child("parameters");
myDevParamsRef.on("child_changed", function(snapshot) {
console.log(snapshot.key());
console.log(snapshot.val());
if (snapshot.key() == "state") {
setState(snapshot.val());
}
});](https://image.slidesharecdn.com/firebase-sby-151020094301-lva1-app6891/85/Firebase-realtime-backend-for-mobile-app-and-IoT-33-320.jpg)
![We teach
+ + [Obj-C]
+
Education](https://image.slidesharecdn.com/firebase-sby-151020094301-lva1-app6891/85/Firebase-realtime-backend-for-mobile-app-and-IoT-52-320.jpg)
Firebase - realtime backend for mobile app and IoT
- 2. Game DevFest 2015 Jakarta, Oct 17, 2015 | Surabaya, Oct 18, 2015 Firebase Realtime backend for mobile app and IoT
- 3. Andri Yadi @andri_yadi | a at dycode dot com http://andriyadi.me | google.com/+AndriYadi
- 4. CEO of
- 5. Been coding in awesome languages/Frameworks for 18 years QBasic, Pascal, c, C++, Java, PHP, Bash, C#, Visual Basic, HTML, JavaScript, Python, Objective-C, Swift .NET, Qt/QML, Java ME/EE/SE, Android SDK, iOS SDK, Node.js, Arduino
- 6. Who am I around Firebase? How dare I am talking here…
- 7. I’m the user of firebase long before Firebase has order & Limit feature I’ve been using it since Jan 2014
- 8. Disclaimer 30 minutes won’t be enough to show how cool Firebase is
- 10. Let’s see a Real-World demo Rather than theoritise about it
- 11. Take a photo with #DevFest2015
- 12. Shared photo will be automatically shown here http://story.jepret.in/Jepret/gdgdevfest2015
- 13. Firebase delivers that photo object to browser in realtime
- 14. Jepret Cloud Jepret Allegra Jepret Story
- 15. Firebase Firebase Node.js + MongoDB Deployed on Microsoft Azure Architecture Firebase Realtime Gallery Allegra Machine Jepret Story app Jepret Cloud
- 17. Let’s see another demo
- 19. Let’s Try something different today…
- 21. Let’s light up the LED
- 22. My Setup
- 24. Circuit
- 25. Code var wpi = require('wiring-pi'); wpi.setup('gpio'); var ledPin = 26; //26 is GPIO pin to LED wpi.pinMode(ledPin, wpi.OUTPUT); //Turn off/on the LED directly var ledValue = 1; //0 to switch off wpi.digitalWrite(ledPin, ledValue);
- 26. Let’s light up the LED via browser
- 27. Architecture Raspberry Pi 2 Web app HTTP (LAN)
- 28. Light up the LED via Firebase
- 29. Architecture Raspberry Pi 2 Web app Internet
- 31. Firebase data
- 32. The trick Raspberry Pi 2 Firebase //if state == true, write 1 //if state == false, write 0 wpi.digitalWrite(LED_PIN, 1) Firebase
- 33. Code function setState(state) { ledValue = +state; //convert true/false to appropriate integer wpi.digitalWrite(ledPin, ledValue); } var deviceId = "smartlamp1"; var myFirebaseRef = new Firebase(“https://[YOUR_FIREBASE].firebaseio.com/devices”); var deviceRef = myFirebaseRef.child(deviceId); var myDevParamsRef = deviceRef.child("parameters"); myDevParamsRef.on("child_changed", function(snapshot) { console.log(snapshot.key()); console.log(snapshot.val()); if (snapshot.key() == "state") { setState(snapshot.val()); } });
- 34. Now we can turn on the Led from Mars ….or from anywhere connected to internet
- 35. Let there be a light Using the same principle, now we can turn on/off an AC light bulb
- 36. Q1 TRIAC U1 OPTOTRIAC_1 R2 1K R1 470 LAMP AC PLUG GPIO AC solid state switch To RPi2 GPIO 5
- 37. My Setup
- 38. Let there be a light from App
- 39. Architecture Raspberry Pi 2 Web app Mobile app
- 42. Architecture Raspberry Pi 2 Mobile app
- 43. Bonus: Automation Turn on light bulb automatically using a LDR
- 45. as Summary…
- 49. WELL DOCUMENTED
- 51. We contribute Education 100+ seminars, workshops, trainings delivered Delivered to 20+ communities, organisations, campuses Next, could be yours… Just drop us a message: http://edu.dycode.co.id | edu@dycode.com
- 52. We teach + + [Obj-C] + Education
- 55. DyCode www.dycode.com office at dycode dot com | @dycode Thanks