Raspberry pi android wear

Эти смарт-часы построены на Raspberry Pi и Windows 98

Вот вам еще один проект, в котором старая операционная система от Microsoft нашла себе новую жизнь. Только в этот раз не Windows 95 (это уже для слабаков), а более серьезная Windows 98. Энтузиаст построил «смарт-часы» на основе Raspberry Pi и в качестве операционной системы использовал старенькую Windows 98. Майкл Дарби прокомментировал свой проект следующим образом:

Я люблю эмуляцию. Мне нравится идея запускать операционную систему на виртуальном железе. Это круто. Это как Матрица, или что-то в подобном роде. Кроме того, я люблю носимую электронику и разную технику маленьких размеров. Сейчас у меня есть возможность, поэтому я подумал, что было бы круто, будь у меня Windows 98 на запястье.

В часах используется Raspberry Pi A+ с сенсорным экраном и пятью функциональными кнопками. Одна из них назначена для команды завершения работы, дабы избежать аварийного отключения, которое может повредить SD-карту часов. Занятно, но здесь даже можно разогнать процессор до 800 МГц, но разработчик не гарантирует стабильность и надежность работы после подобной практики.

Уровень качества: Nokia 3310

Тестируя свою вундервафлю, Дарби отметил, что интерфейс вполне «юзабельный», но в общем и целом все работает весьма медленно. Также сенсорный экран страдает огрехами в плане точности, что можно списать на эмулятор QEMU или отсутствие должной калибровки. Но как бы там оно не работало сие чудо инженерии, смотрится очень атмосферно. Это такой пип-бой (из вселенной Fallout), только на Windows 98 и с большим шансом свалиться в голубой экран смерти.

Разработчик хочет также попробовать запустить на часах другие ОС, вроде Windows 95, Windows ME или Windows XP. Подробности о создании часов на Windows 98 можно найти на сайте Майкла Дарби.

Кому нужен унылый Android Wear или не менее убогие Apple Watch? Настоящие тру-гики устанавливают Windows 98 на свои смарт-часы и разгоняют на них процессоры.

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How to Install Android on Raspberry Pi 4? (with Play Store)

Installing Android on Raspberry Pi is a dream that is difficult to achieve. Perhaps you’ve already tried, but were unsuccessful. Me too, many times :).
I already created a tutorial on this topic using Emteria and a Raspberry Pi 3. But Emteria is a paid software, and the whole system was a bit slow and unstable on Pi 3.
How does it work now with a better Raspberry Pi and OS? We’ll see learn about this in today’s post.

Konstakang has created a custom image of LineageOS, an open-source version of Android, that can be installed on Raspberry Pi 3 and 4. Google Apps can then be added on the SD card to have a complete Android version running on Raspberry Pi.

In this tutorial, I will guide you through all of the steps with LineageOS, which is a good alternative to run Android on Raspberry Pi 4.

Edit : I recently tested this Android version with a touch screen for Raspberry Pi (I have this one from SunFounder to be precise), and it works very well. Android is designed for touch devices, so it makes sense :).

If you are looking to quickly progress on Raspberry Pi, you can check out my e-book here. It’s a 30-day challenge, where you learn one new thing every day until you become a Raspberry Pi expert. The first third of the book teaches you the basics, but the following chapters include projects you can try on your own.

What is LineageOS?

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Introduction

LineageOS is a free and open source operating system, like most new systems I introduce on this website.
The first thing to understand, LineageOS is made for smartphones and tablets, it’s not an emulator or something specially dedicated to single board computers.

LineageOS was created in 2016, and is a fork from CyanogenMod.
LineageOS comes with a few basic applications (browser, calendar, calculator, etc.), but it doesn’t com with any Google applications or any useless preinstalled software.
If you are interested, you can get further information on their website.

Does it work on Raspberry Pi?

As you can imagine, I will not write about something that doesn’t work on Raspberry Pi on this site :).
So yes, there is a way to make it work on your Pi, but it’s not with the official release.

As you can see on the download page here, LineageOS is available for many devices (Samsung, Huawei, Sony, etc.), but not for anything other than smartphones and tablets.

However, there is an unofficial version available on this website for Raspberry Pi 4.
It’s not the latest LineageOS version (it’s Android 11 at the time of writing), but it’s good enough for the moment.
So, I’ll show you how to install this version on your Raspberry Pi 4.
There is also a version available for Raspberry Pi 3 if you use this model.

One good idea is to use it with a touch screen.
This way you can get a real Android tablet for cheap.
As explained in the Introduction, I have tested it with a 7″ one from SunFounder, and it works really well (you can read my review here).

Install Android on Raspberry Pi

Here are the required steps to install Android on Raspberry Pi:

• Download the LineageOS version for Raspberry Pi from Konstakang.
• Download OpenGapps and save it on a USB key.
• Flash the LineageOS image on a SD card and start the Raspberry Pi.
• Reboot in recovery mode to install the Google apps.

I will now explain each step in detail.

Prerequisites

Ok, so you’ll need to download several things before starting the installation process.
It’s not always easy to download it directly from Raspberry Pi, so I recommend downloading it from your computer.
I will explain what to do with each file later.

So, download all these files on your computer:

• Balena Etcher.
  We’ll use it to flash the SD card. It’s available on any operating system.
  You may already have it or prefer another tool, which isn’t a problem.
  Raspberry Pi Imager will work, you just need to choose “custom OS” in the OS selection menu.
• LineageOS for Raspberry Pi 4 or LineageOS for Raspberry Pi 3.
  Download it from the Konstakang website, take the latest version available for your device:
• OpenGapps.
  The alternative to install Google Apps on a custom Android device.
  Choose the ARM platform, the corresponding Android version and the “pico” variant:

I recommend copying the “OpenGapps” file to a USB key.
It’s easier than downloading it from the Android system. I’ll show you in the last part how to install them.
Attention: make sure the USB key is formatted in FAT32. It won’t work with another file format.

Note: At the time I’m updating this article, OpenGapps is not yet available for Android 12, so you need to stay with the previous version of LineageOS (Android 11) if you want to use the Play Store.
An alternative is to use the Gapps from another developer. I tried NikGapps, and it worked fine (here is the website).

Flash the SD card

Next, we need to prepare the SD card.
As usual, I’m using Etcher to do this:

• Install Etcher if not already done.
• Start it, you’ll get something like this:
• On the left, pick the LineageOS image file from your Downloads directory.
  Then insert your SD card in your computer, Etcher should select it automatically.
  And finally click on “Flash!” to start the copy.

A few minutes later, your SD is ready and you can insert it in your Raspberry Pi.

Boot on LineageOS

Start your Raspberry Pi.
The first boot will take a bit longer, as the system initialize the configuration in the background.

Then, you’ll access directly the Android desktop. There is no longer any setup wizard as with the older versions:

Depending on your goal, you can start working with the basic apps (browser, file browse, etc.).
To access them, scroll up the bottom bar.

But you’re probably not here to only use the email and browser apps, there is not much you can do with only the default apps. That’s why we’ll quickly move to the Google Play Store installation.

Android configuration

Before going further, now is a good time to adjust the default configuration if needed. As there is no wizard anymore to guide you with the configuration, you can go to the “Settings” app if needed to configure your Internet connection, language, date/time, etc.

I’m using my Raspberry Pi 4 with the Ethernet cable plugged, but it doesn’t work, I have no network. If you are in the same situation, start by configuring the Wi-Fi network. It will then synchronize with the time server and fix the date/time for you.

Install Google Play Store on Android

This is always the most complex part on an Android installation, for any device or system.
As we don’t use an official Android image and device, there are additional steps to enable Google Play Store. But Konstakang has made this really simpler now, and you’ll quickly have everything your need on your device.

Reboot in recovery mode

We’ll need to boot in recovery mode to install OpenGapps.
To do this, we need to unlock the access to this mode by enabling the advanced restart.

Here is how to do this:

• Open the “Settings” app.
• Go to “System” > “Advanced settings”
• Enable the first option “Reboot to recovery”
  
• Scroll down the notification bar and click on the power icon.
  Then click on Restart:

In theory, F5 should work to display this screen, but it doesn’t work anymore once the reboot to recovery enabled.

Plug your USB key with OpenGapps on it, and wait a few second for the recovery mode to start.

The system will now reboot on recovery mode.

We can now move to the Google Apps installation.

Install Google Apps

Once in recovery mode, follow this procedure:

• Click on “Mount”.
  This is where you can choose which partition to mount.
  We need to mount the USB key, so check the USB item in the list.
• Then, back on the main menu, click on “Install”.
• Click on “Select Storage” and choose the USB key.
• Finally, your files appear.
  Click on the Open Gapps file to install it:

Swipe to confirm, there is nothing else to change.

Don’t reboot after the installation, as it will come back to the recovery mode.

If everything is OK, you can now restart in normal mode, choose “System” in the menu when you click on Reboot.

That’s it, your Raspberry Pi will now restart in normal mode.
Once on the Android desktop, you can see that Play Store is available in the apps.

Sign in on Play Store

The last step is to sign in on Google Play, as you would for any Android device.
Open the Play Store app and try to sign in with your Google account:

You may get some error messages during this process, asking if you want to close or wait:

Keep choosing “Wait” until you manage to log in.

Once logged in, you can close the app and reboot the device.
After the reboot, everything should be fine.
You can now install any app or game you want on your Raspberry Pi :).

Video

I have recorded the whole process in video simultaneously. You can watch it here if you want:

Subscribe to the RaspberryTips YouTube channel to receive new videos directly in your feed:

Recommended stuff for Android on Raspberry Pi

• Raspberry Pi 4: If you don’t have one yet, I highly recommend switching to the fastest Raspberry Pi model available. Android is still a bit slow on any other model.
• SSD drive: If you want better performances, a Raspberry Pi and a SSD allows you to run systems really fast. My favorite model is this one. SSD drives are now really affordable, go for it! (USB adapter included).
• Touch screen: Android is built to use on a tactile screen, this one is cheap and allow you to have a better experience with your new Android system.
• RasPad 3: This has been my best experience so far. A “real” tablet with a battery and a touchscreen, it’s perfect to use with this Android build. Check the link for more details.

Conclusion

That’s, we finally found a way to have Android working better than ever on Raspberry Pi
And it’s not so difficult to install, we don’t need any account (except from Google), and it’s free 🙂

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You can also find all my recommendations for tools and hardware on this page.

I’m the lead author and owner of RaspberryTips.com. My goal is to help you with your Raspberry Pi problems using detailed guides and tutorials. In real life, I’m a Linux system administrator with a web developer experience.

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