ADB over WIFI

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Del curso dictado por University of California San Diego

Internet of Things: Setting Up Your DragonBoard™ Development Platform

152 calificaciones

University of California San Diego

Internet of Things: Setting Up Your DragonBoard™ Development Platform

152 calificaciones

Do you want to develop skills to prototype mobile-enabled products using state-of-the-art technologies? In this course you will build a hardware and software development environment to guide your journey through the Internet of Things specialization courses. We will use the DragonBoard™ 410c single board computer (SBC). This is the first in a series of courses where you will learn both the theory and get the hands-on development practice needed to prototype Internet of Things products. This course is suitable for a broad range of learners. This course is for you if: • You want to develop hands-on experience with mobile technologies and the Internet • You want to pivot your career towards the design and development of Internet of Things enabled products • You are an entrepreneur, innovator or member of a DIY community Learning Goals: After completing this course, you will be able to: 1. Configure at least one integrated development environment (IDE) for developing software. 2. Make use of git, adb and fastboot to flash multiple OS and repair bricked boards. 3. Install Android 5.1 (Lollipop) and Linux based on Ubuntu. 4. Create, compile and run a Hello World program. 5. Describe the DragonBoard™ 410c peripherals, I/O expansion capabilities, Compute (CPU and Graphics) capabilities, and Connectivity capabilities.

De la lección

Setting up your Developing Environment

In order to easily communicate with your DragonBoard™ 410c it is essential to set up a developing environment. In this lesson we will talk about Android Studio as our preferred IDE (Integrated Development Environment), we will show you how and where to download it as well as walk you through the installation process on both Mac/Linux and Windows. As an Android developer you will need a variety of tools, these tools come bundled with the Android Studio download and are referred to as the SDK (Software Developer Kit). This lesson will cover accessing the SDK and utilizing the various tools it has to offer. ADB (Android Debug Bridge) and Fastboot are among the tools we will be using most throughout this course. It is with these tools that you will be able to access your board at all levels and make crucial changes needed for development.

Introduction to Lesson 40:45

Introduction to ADB1:24

Update USB Drivers (Windows) -Please see reading6:27

ADB Protocol1:35

Using the ADB Protocol5:15

ADB over WIFI6:09

A look back at Lesson 41:06

Conoce a los instructores

Ganz Chockalingam
Principal Engineer
Qualcomm Institute of Calit2, UC, San Diego
Harinath Garudadri
Associate Research Scientist
Qualcomm Institute of Calit2, UC, San Diego

Welcome back.

In this section, we're going to be going over how to configure ADB to be done

wirelessly or via wi-fi.

Now, the Dragonboard 410C has its OTG port and the USB ports mutually exclusive.

In other words, if you have the OTG plugged in,

you can't use your USB devices.

So let's say you're making an android application and you try and upload

it to your board, but you need to interact with it with your mouse or keyboard.

Turns out you can't, because the serial device is actually

getting in the way of that, and that's just the way that dragon ware is designed.

So it's going to be a really pain in the butt to kind of like keep un-plugging,

re-plugging, and especially because if you want to interact with it

you won't be able to get into the log messages.

>> And so to work around that we're going to show you how to connect

your Dragon Board to your local host over wi-fi.

So lets dive right into the screen.

>> So first things first, make sure that you have a serial connection

via the USB and OTG, just a standard USB cable.

>> And first we are currently in our platform tools directory,

which is where our ADB is located, and so first you want to run ADB as root.

So we're gonna run that.

And we are already running as root.

Next you want to re-mount your board.

>> You're gonna start overwriting some files in it so

you'll need to be able to have access to that.

>> And next what you want to do is you want to run this specific command so

that you're able to open up a port for the host to the Dragon Board.

So it's ./adb shell and we're gonna issue the command,

echo service.adb.tcp.port=5555,

and we're gonna append that to a specific

file in your Dragon Board located at /data and

called local.prop.

>> And just remember guys that if you guys don't know already, a port is essentially

a way that your device or computer is able to communicate with the outside world, so

by opening up this port we are allowing the Dragon Board to communicate via that

port to other computers.

>> So we're going to go ahead and issue the command.

And after that command, we need to call CH mod on that file,

so we do ./adb shell chmod 0644 /data/local.prop.

>> At this point in time you're gonna need to restart your Dragon Board so

that it can actually read the file and configure the ports accordingly.

>> So we're gonna go ahead and do that via the command line.

>> However in our case we already had it configured to have the port open so

we don't need to reboot at this moment in time.

>> But if you did want to you want to call ./adb

reboot >> Perfect.

>> So

now what you're gonna need to do is you're gonna need access to your Dragon Board.

So what we're gonna do first is disable this connection, and

as you can see on the screen, what we need for

our host to connect to the Dragon Board is the IP address.

>> So make sure that you have a Dragon Board connected to your internet.

This will not work if you do not have internet on your Dragon Board.

So let's go ahead and go to our settings.

>> So, as you can see here, we are already connected to UCSD-protected.

We're going to do a long hold and click modify network, and

that will show us the IP address.

What we're going to do is to check if your computer is able to

contact the Dragon Board, you're going to issue this command in the screen.

You're going to ping the IP address, so for us that would be that IP address.

And as you can see we are receiving and able to communicate with it.

We can end that command.

And that's just to notify you that you're able to make the connection.

Now, if you want to be able to connect to your Dragon Board via wirelessly, right?

You would do ./ADB connect, and enter in the IP address,

137.130.04.120.

And you want to add a colon with the port number which is 5555.

Enter.

And this should show you that it's connected.

Now to test your device we will run the command dot/adb devices,

and as you can see we are connected to the Dragon Board.

>> That's really cool, so I'm not a firm believer yet.

Can you go into the shell and see if you can actually play around in it?

>> Sure.

./adb shell.

>> Wow. >> We're there.

>> So now we're able to communicate via WiFi to the DragonBoard.

That's really cool.

Now, note that the commands that we just issued,

you do not need to do every single time.

The beginning commands with the adb root all the way to appending that one file and

ch modding it you only need to do that one time and just reboot.

Now because it's saved inside that file, on every single subsequent reboot it

will automatically open up port 5555 for us or any other port that you choose.

So all we need to do is just figure out the IP address and

just issue that adb connect and then we're done.

And what's even cooler is that Android Studio will automatically

see that in our device list.

>> Yeah.

And with that,

in the next section we'll give you a brief rundown on what we learned with adb.

So we'll see you then.

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