Questions tagged [android]

For questions pertaining to Android, the Linux-based touch-enabled operating system designed for mobile devices.

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9 views

Serial communication over uart - Android raspberry pi 4

Is there a library/source code available for serial communication over uart for the raspberry pi 4 running Android?
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1answer
363 views

Has anyone gotten an android phone to reliably USB tether to raspberry pi?

All, There are a lot of threads on using a old android phone to USB tether to a raspberry pi for internet access. I am trying to tether a RPi to an android phone to allow passing of MQTT messages to ...
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1answer
29 views

Sharing a headless Raspberry's IP to an Android host

I am doing a project where a Raspberry pi zero collects some data from a sensor and displays it through a self hosted web server. Now,the usual way you access a webpage in a raspberry is to just type ...
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1answer
471 views

How can I correct errors when connecting android phone the pi with a usb cable?

I have pi B+ with a new install of rasbian today I am trying to connect my Samsung Galaxy Edge 6 with a usb cable. I have previously connected the phone to a linux pc using the same cable with no ...
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23 views

Wifi access point "Authentication problem" "password may be incorrect"

I just mixed these 3 tutorials (first that one : https://thepi.io/how-to-use-your-raspberry-pi-as-a-wireless-access-point/ , then these to fix problems : https://learn.pi-supply.com/make/how-to-setup-...
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1answer
75 views

Raspberry Pi controlled remotely by LAN but using alternate internet connection

My Windows laptop connects wirelessly to a LAN (with internet). My Raspberry Pi 3 B+ is wired to the same LAN. I can control the Pi from the Windows laptop using AnyDesk (remote desktop software). ...
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1answer
544 views

Connect Android and Pi 3 via network socket using Pi 3 as an access point

Cross post with https://stackoverflow.com/questions/52596484/connect-android-and-pi-3-via-network-socket-using-pi-3-as-an-access-point, please delete if this isn't allowed. My plan here is to create ...
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145 views

Run LineageOS on raspberri Pi4 without HDMI connected

I installed Lineage OS 18.1 (a based on Android 11 operating system) on my raspberry pi4. When connected to a monitor via HDMI, it boots normally. After booting normally, disconnecting the HDMI ...
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23 views

Can we run SPI screen on Android? (Rock/Raspberry Pi project)

Can we run SPI screen on Android? https://www.waveshare.com/wiki/Pico-OLED-2.23 We don't need an Android environment and just a few message lines. Our project is with Rock/Raspberry Pi.
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1answer
336 views

How to control raspberry pi 4 GPIO pins by running android application in the rpi and in mobile?

I am trying to build a project based on IoT. My goal is to trigger relays connected to GPIO pins in rpi4 by using an android application running in rpi4 itself which can be accessed with an official ...
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38 views

"android.os.ServiceSpecificException: I/O error (code 5)" when starting an Android Things app on Raspberry Pi 3 connected to TSL2591

I connected my TSL2591: VIN to 3v, GND to GND, SCL to SCL, SDA to SDA. This is the logcat: 08/21 09:24:45: Launching 'app' on Google iot_rpi3. App restart successful without requiring a re-install. $ ...
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2answers
558 views

RPi 3 WiFi configuration from Android

I am new to Raspberry Pi. I would like to do the Wi-Fi configuration for the Pi 3 from an Android app. On researching I found there are many approaches to setting up a web server on the Pi side. So ...
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26 views

Connect Raspberry Pi from Android App through USB

I'm building an android app where there's a requirement to show the temperature in the app from the sensor in Raspberry Pi Controller. For this purpose, I'm trying to connect my android device to ...
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1answer
28 views

Is t possible/feasible to use android's NDK toolchain to cross-compile for Pi?

That's it, really. I have an x86_64 host that already cross-compiles a C application for android's 4 supported architectures, could I use the existing toolchain to build armeabi-v7a for a Pi (running ...
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44 views

Cast raspberry pi screen to Android?

I am looking for a way to use my (very) old tablet as a monitor for my raspberry pi 4 that's running Linux (I am willing to change to Raspbian if needed). The tablet runs on Android 4.4.2 (I have ...
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1answer
3k views

Scan Distance from Eddystone Beacons

I would like to read an Eddystone Beacon using my Raspberry Pi 3 to calculate distance from the beacon. I can't find any resources to do this from the official Eddystone documentation. How should I go ...
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37 views

recipe for target 'broadcom/bcm2711-rpi-4-b.dtb' failed

I am trying to build an Android Automotive OS for Rpi 4b image following this post by Snapp Automotive When I try to build the RPi kernel, running ARCH=arm64 CROSS_COMPILE=aarch64-linux-gnu- DTC_FLAGS=...
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1answer
93 views

How to send from my Raspberry pi data to my Android Application using socket?

I used a code that works when I want to send data from my mobile application(android studio) to the raspberry, but when I tried to update it so it can work for both connections, It doesn't work. How ...
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1answer
52 views

Communication between Raspberry pi and Android studio Application

I've created a mobile application using android studio to control some leds, sensors, and locks. So I'd want to connect my mobile application to my raspberry pi to send and receive data, how could I ...
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1answer
421 views

Playing pokemon go on rpi 4

I looked around on the internet but all I found were rpi pokemon detectors. I tried using LineageOS (following this tutorial), but it said device not supported, probably because of the root required ...
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148 views

LineAgeOs 17 on Raspberry pi4 dont boots if display is not connected

I installed Lineage os 17 into a raspberry pi4. It works normaly and start my app in boot. but if i turn my raspberry on with no hdmi cable connected. it dont boots. how can i boot my raspberry with ...
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44 views

Raspberry pi4 + Lineage OS + bluetooth headset Dont work

hello im having some problem to use a headset bluetooth on a raspberry. in you tube i can hear the sound perfectly but in Linphone ( a softphone app or any other softphone ) i can hear and talk ...
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15 views

Raspberry pi with Android lineageOS 17 external bluetooth dongle

I have a raspberry pi3 with a android lineageOS 17 instaled. but in my raspberry my bluetooth is not working. I bought a bluetooth dongle usb to pair my bluetooth headset but it dont recognize the ...
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301 views

USB debugging on raspberry pi 4(8 GB RAM model) running with lineage OS 18.1(Android 11)

I am currently working with lineage os 18.1 running on a raspberry pi 4(8GB RAM model) board. I need to look into the logs of the lineage os running on the Rpi board. For that, I need to work with ADB(...
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1answer
884 views

Constant large lag (2s) using uv4l to stream camera module to Android app

I'll try do my best to share the steps I've taken to fix lag on video with my raspberry pi. I'm building a robot that has a raspberry pi mounted on top of it, which talks to an app for android ...
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1answer
50 views

Connecting Anroid app with PI3 and touchscreen

Can a touchscreen be used with RPI3 to open Andorinha apps?
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1answer
466 views

Android cannot connect to Pi's wlan

I'm running a Node server on port :3000 and want to access it from other devices using Pi's wlan0 address. wlan0: 169.254.36.22 Accessing from Macbook works Accessing from iPhone works Accessing ...
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18 views

Send inputs from hardware to Android on Raspberry Pi

I have Android installed on my Raspberry Pi 3 and I want to be able to control it with simple actions from hardware. For example, I want to have a button connected to my raspberry pi, and when it is ...
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2answers
16k views

Using an Android phone or tablet as a keyboard or mouse

There are many remote apps to let Android devices control XBMC installations. Is there anything that would act as a generic keyboard or mouse, to allow an Android phone to control Raspbian, ...
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2answers
533 views

How to connect an Android phone and a raspberry pi through wifi direct programmatically

so I have been working on the task of connecting a pi to an android via wifi direct for a while, and I was able to get it to work, using the information given in this question: Issue connecting ...
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1answer
181 views

Dual or Triple Boot Possible?

I'm wondering if it's possible to dual boot Raspbian, LineageOS, and RetroPie on an SD card? I've looked around and it seems like there is an issue with it not going straight into a bootloader like ...
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2answers
229 views

Can i connect using WiFi Direct to use smartphone as monitor. No internet access!

I would like to know how to connect my RPi 3 model B+ to my Samsung Galaxy s10e (sm-g970u) using WiFi Direct to use my smartphone as the display screen as i have NO internet access at my home and i ...
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5answers
2k views

Raspberry Pi - Rainbow screen

I'm trying to boot up Exton's Android build on Raspberry Pi 2, but I seem to be getting the rainbow screen. Here is what I have - 4 partitions as follows boot which has 512 MB, flagged as bootable ...
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1answer
368 views

how can i get real time data from the raspberry pi sensor to my android app?

how can I display real-time data from the raspberry pi heat sensor into my android app made with the android studio (not an android app build on a raspberry pi ) every time the sensor measures a ...
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30 views

Use RaspberryPi Touchscreen Display as Smartphones Display

I've been searching on the net if you can convert smartphones touch screen display with raspi's touchscreen display make the screen somehow go bigger. Search results always shows how to use ...
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2answers
2k views

How to build an Android app on Raspberry pi?

As you may know, the Android development system is available for the Raspberry Pi from the Debian project here: https://packages.debian.org/buster/android-sdk However, they do not include Android ...
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1answer
403 views

Raspberry Pi Cam Stream to Android (Very Low Latency)

I've been looking for a way to get Pi Cam video streaming into an Android device and all Android Source code I found is very high latency. The only one I found was the ShawnBaker´s RPiCameraViewer ...
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0answers
40 views

Connecting a phone to a Pi 3A+ using Bluetooth fails

I want to connect my phone using BLE to a Pi 3A+. For testing I have set up a Bluetooth server using this code. I have tried connecting with nRF Connect on both a Motorola Moto e5 (Android 8.0) and a ...
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43 views

Raspberry Pi based always-online harddisk from which I can stream a "remote" android app to my smartphone

I use a popular app called readera to read and manage ebooks on my android smartphone. I want to have all the ebooks on a 2TB portable harddisk that remains connected to a raspberry Pi at all times. ...
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2answers
467 views

Cannot connect to localhost on RPi from my phone through access point

I am running Node.js in a localhost on my Raspberry Pi 4. I would like to access the localhost in the browser of my phone. I have set up a stand alone access point on my Raspberry Pi and connected my ...
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2answers
12k views

How to connect Pi to an Android phone through WiFi Direct?

I am trying to connect Raspberry Pi with a Samsung Galaxy S3 through WiFi Direct. The online information on such process is quite sparse. The most close reference I can find is from CodeMonkeyRicky's ...
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1answer
255 views

USB Ethernet / RNDIS is working over my desktop computer but not from my android phone

After following some guides, I was able to get a USB SSH connection working from my Windows 10 computer into my Raspberry Pi 4. It won't work on my phone though, even though my phone is capable of ...
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1answer
634 views

Wireless communication between a RPI and a Android app - without internet

I got a RPI4 and I would like to communicate to it from my Android Studio made app. Specifically I would like to start a javascript with node.js on the RPI. So the RPI should be sort of an headless ...
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0answers
61 views

Using Android Phone as Webcam via USB to use Zoom or Google Meet [duplicate]

People have been asking for help to be able to purchase a tablet or a computer that they can use for online classes. Most people here in the Philippines don't have the means to buy any of it. However, ...
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1answer
263 views

Issue connecting raspberry pi to android via Wifi p2p

I'm working on connecting a Raspberry Pi Zero W to an android device and having some issues. I think I am very close to getting it to work, but perhaps there is some small error. So I followed the ...
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0answers
65 views

How can I make Raspberry Pi's Bluetooth discoverable to iPhone or iOS? [duplicate]

I've got a Raspberry Pi 4B, when I use an Android phone to connect to the Pi with Bluetooth, it works normally, both pairing and connection. But when I use an iPhone to do the same thing, the phone ...
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1answer
4k views

Fire OS on RPI?

Has anyone tried to create any sort of file that allows Fire OS(Amazon's Fire operating system) to run on the rpi? I can't seem to find any sites on google that provide the necessary files.
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787 views

Compiling Android Automotive os for raspberry pi

So i want to create a Android Automotive os build for raspberry pi, but I'm new to the whole AOSP and i think the documentation for AOSP is a bit messy. So my question is, do i start from a finished ...
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1answer
4k views

Receiving files from Android via Bluetooth?

I currently have an Android application that is paired to my Pi via the Bluetooth dongle. In order to receive a file, I have to manually accept for the transfer to occur. Is there way to bypass this ...
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1answer
436 views

Trouble Connecting Raspberry Pi 4 to Android Phone Via Bluetooth

I've been trying to connect my Raspberry Pi 4 to an Android phone via Bluetooth by following these tutorials first tutorial, needs translation, second tutorial, and last tutorial. Since I currently ...

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