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Questions tagged [android]

For questions about communication or data transfer between Arduino and Android devices. General Android questions can be asked on Android.SE.

-1
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0answers
10 views

HC05 not discoverable [on hold]

My HC 05 module is not discoverable when I search using my Android phone. Red LED keeps blinking but my phone shows no device available to pair.
-1
votes
0answers
10 views

HC-05 module is disconnecting after few seconds [closed]

When i try to connect the HC-05 using my app made in Android Studio the connection gets established but it doesn't last more than 5 seconds.
0
votes
1answer
38 views

Connect a button to bluetooth board and comunicate with Android

I want to create a small device, just a button that sends its status to an Android application through Bluetooth. I bought a Bluno Beetle, but the information it exposes to Bluetooth cannot be ...
0
votes
1answer
73 views

Serial communication between a single Android device and multiple Arduino boards [closed]

I am thinking about a project, but I will need let's say two Arduino Uno. I can see that we can just use different USB ports on a PC, but what about an Android device? I want to "run commands" from ...
1
vote
2answers
303 views

Why can't my bluetooth receive serial data from my android phone, but can send serial data from my bluetooth to my android phone?

I can receive serial data from my phone but I can't send serial data to the arduino using bluetooth. I can see my input from serial monitor to my Android but not the other way. I'm using ARF7044A ...
1
vote
1answer
53 views

Arduino program has suddenly stopped updating

I am writing a speedo/odometer program which was all working beautifully until I introduced an LCD screen and code for the LCD. The screen works on power up, displays the distance recorded on an SD ...
0
votes
1answer
83 views

Problem connecting Android app to Arduino [closed]

Sorry for doing this, I really don't know where to post beacuse this is both Android Studio code and Arduino code so I've posted to both sites. I want to create a project of using controlling pan-...
0
votes
2answers
1k views

Receive data from Arduino board to Android application

I'm trying to receive data and print it on a label of my application, but I can not get it. Actually, I have 0 experience with Arduino. It's the first time I see this. I read this tutorial to receive ...
2
votes
1answer
30 views

Can you make it so, when your phone connects to the Hc-05 on a Arduino, a variable changes?

So whenever my phone gets close, and it connects to the Hc-05, the Arduino changes a variable? I want to avoid the use of apps, where the user has to do anything after first time connecting. The ...
0
votes
0answers
36 views

Is there such thing as advertise your custom UUID? Advertise on logic HIGH only

I want this sketch to poll the button logic all the time, if logic HIGH then advertise the custom UUID for 0.5 second then off the radio and go back to polling the button logic and the cycle goes on ...
1
vote
1answer
42 views

Control/Interacting with Android OS using Arduino board

I am new to arduino, and based on my search, it is possible to connect Android devices and Arduino board thru bluetooth module. But most solutions i found are either for controlling Arduino board ...
0
votes
0answers
256 views

Android NFC reader

I am looking for a way to communicate between an arduino and an Android device without direct connection, so I am looking to use NFC. I want to create an arduino NFC reader and a corresponding ...
1
vote
0answers
1k views

Send Bluetooth Data to Android App (HC 05)

I'm struggling to send data strictly from my arduino UNO to an android app using bluetooth module HC 05. I am able to send/receive using 1) the serial monitor in arduino IDE and 2) Bluetooth Chat ...
0
votes
0answers
430 views

I can't receive data from HC-05 on android

I would like to send ad8232 sensor data to android. The sensor data appears on the serial monitor however it doesn't appear in bluetooth terminal applications on android. Here's the code : #include &...
0
votes
2answers
104 views

How to make a smooth serial print?

I have a code which make some calculations using sensor values and provide two comma separated values. float x;// initialization float y;// initialization //some calculations here using sensor values ...
0
votes
1answer
343 views

LSM9DS1: Inconsistent data from an accelerometer

I'm currently getting inconsistent data from the accelerometer of my Adafruit LSM9DS1. To be more precise I either get a value close to the correct gravity (eg. 9.496515) or some reading like it was ...
-1
votes
1answer
127 views

How will Arduino sketch and Android app communicate over GPS? [closed]

How will I make Arduino with GPS communicate with an Android app? I just need this for my school project.
0
votes
2answers
5k views

Change the baud rate of HC-05

#include <SoftwareSerial.h> SoftwareSerial BTSerial(10, 11); // RX | TX void setup() { pinMode(9, OUTPUT); // this pin will pull the HC-05 pin 34 (key pin) HIGH to switch module to AT mode ...
0
votes
2answers
459 views

#Ardunio Send Float values with bluetooth.print in arduino

I have been creating the example for bluetooth communication with arduino with hc_05 Problem I am facing are below. String statuss= "1.00,2.00,3.00"; bluetooth.print(statuss); Serial.print(statuss); ...
-1
votes
2answers
100 views

Arduino: Camera streaming [closed]

I want to make Arduino to stream video by camera thru bluetooth to android. Is Arduino powerfull enough to stream it without lag(Sorry if the question is stupid) Are there any good cameras, I have ...
0
votes
2answers
46 views

Android as sensor hub [closed]

Generally an Android phone has all the basic sensors like accelerometer, light, proximity, magneto, gyro, sometimes pressure etc. So is there a way to use Android's built-in sensors with an Arduino ...
1
vote
2answers
665 views

How do I make the HC-05 bluetooth module take data from the HC-SRO4, and then send it to my Android app?

Currently, I have an Arduino Uno set up, with a HC-SRO4 ultrasonic sensor printing distances of objects in front of it on a scale from 1-15 to the serial monitor. I want to attach the HC-05 bluetooth ...
1
vote
0answers
211 views

Triggering actions in Android smartphone via Bluetooth from Arduino

Am working on a wearable using Arduino Micro and I am thinking it would be cool if I can trigger some events in my smartphone using Arduino. Say for example a button press in my wearable should ...
0
votes
0answers
37 views

Arduino - IR firing problem

I am trying to build a mobile application which will be capable of firing different channels via Bluetooth HC-05 and Arduino UNO. We are getting IR codes from Android to Arduino through Bluetooth and ...
1
vote
2answers
7k views

HC-05 Bluetooth Module Blinking Red Light-Arduino Uno

I have looked on google for an answer to my problems to no avail. The you tube video I am following is here: https://www.youtube.com/watch?v=f1v0IMegCvU So basically on my android, I can't see the HC-...
4
votes
3answers
2k views

How to know positive and negative in breadboard

I have this breadboard, and there is no indication on it about what is positive/negative on it. In comparison, this other breadboard (pic from the internet) DOES have indications: Can anyone give ...
0
votes
2answers
135 views

Arduino Uno with UsbSerial Android library w/ baud rate over 9600?

I am having no issues talking to Android at baud rate of 9600. But once I raise the baud rate to anything higher Android seems to become deaf. When I try to read the Serial output using putty all ...
1
vote
1answer
2k views

Control Android Camera using Arduino over Bluetooth

I want to Control Android Mobile Camera shutter using Arduino over Bluetooth. So i can click photos using arduino. I have HC-05 Bluetooth Module and Arduino Nano/Arduino leonardo. The Connection as ...
0
votes
1answer
324 views

Data sent via UART Bluetooth different than SerialMonitor

I am using a 9-axis accelerator on an Arduino Uno (Atmega 328P processor) with a BLE Nordic rRF8001 chipset. I am trying to send the accelerometer data via bluetooth to a smart phone (android). The ...
-1
votes
1answer
487 views

Arduino with android for Head's up display [closed]

Is it Possible to use a Projector(Or other tech) connected to Arduino to Project the image provided by the Android phone? By image, i mean notification, Maps etc. Im trying to Create a HUD. And i want ...
1
vote
1answer
80 views

Is it possible to digitally stop a moving motorbike using an Arduino module?

I am working on a bike protection project that is supposed to be part of my CS syllabus. Although I got most of the things worked out, there is one thing that bugs me; that is to how to stop a moving ...
3
votes
1answer
485 views

Unable to receive SMS on Android

I have a GSM/GPRS shield for Arduino. It uses a SIM800 from SIMCOM. I've done several projects using it. Previously I used to send SMS from the same module. which were delivered appropriately. Since ...
0
votes
1answer
144 views

BLE Shield v2.1

I have an Arduino Mega 2560 and a BLE Shield v 2.1 from RedBearLab. When I try to connect it through Bluetooth from my laptop to 'BLE Shield', it says 'Connected!'. When I try from a Windows phone, it ...
2
votes
2answers
464 views

Arduino audio frequency reader

I have a simple project for my arduino : light some leds when i send a certain frequency from my smartphone through the jack output . For example , I play a simple audio file generated with a ...
1
vote
0answers
355 views

I can't receive data from Arduino through Bluetooth

I am developing an app that controls an Arduino robot. For that I need to communicate through Bluetooth. That means sending and receiving data. Why receiving? Because I also have sensors on the robot. ...
0
votes
1answer
2k views

Using SIMCOM SIM800 as a Bluetooth SPP Client

I just bought a SIM800 module for my Arduino project and I found that I supports Bluetooth too. I have already worked with HC-05 and my Android phone. I tried to play with this module and able to ...
0
votes
1answer
467 views

Can't read two bytes through Serial.read - Arduino

I'm sending via Bluetooth with an Android App two bytes like this: private void _sendCommand(byte command, byte arg) { if (CONNECTED) { try { os.write(new byte[]{...
2
votes
2answers
108 views

Using Arduino to pass data from a coin collector to android app [closed]

Okay. Basically I want the android app to be able to recognize that a coin was inserted into the coin collector before it allows the user to use certain functions of the app. However I am unsure ...
0
votes
1answer
2k views

Arduino Mega 2560 and Android USB OTG serial communication

currently I am building a little project based on the Arduino Mega 2560. My goal is to send some data gathered by some sensors to an Android phone. It has to be as basic as possible. Buying new ...
2
votes
1answer
9k views

Sending data via bluetooth

I am trying to both send and receive data using bluetooth module. Receiving data works fine with this code: void setup() { Serial1.begin(9600); Serial.begin(9600); } void loop() { if ...
-1
votes
1answer
160 views

arduino usb android controller

i am pretty much newbie with arduino and want to start my first project so i may be asking stupid questions. My goal is to make usb controller for android tv (running on raspberry pi or s905). I want ...
1
vote
0answers
3k views

How do I solve error 516 : Broken Pipe with HC-05 and arduino? [closed]

I am doing an LED project from howtomechatronics.com . It is to control and LED by pressing the on and off buttons on an Arduino Bluetooth terminal app. I am using the app made by the ...
0
votes
1answer
202 views

How can I interface HMC5883L compass board to a smartphone with OTG?

Friends... I have an idea to attach the compass sensor (HIMC5883L) with my android smartphone using arduino, but I don't clearly know how to do this. I mean I want to make an OTG compass for ...
1
vote
0answers
78 views

How to get power for a nexus 7 while reading serial data from an arduino over usb?

Does anyone know how to simultaneously power a Nexus 7 tablet while simultaneously reading serial data from an arduino over USB? I have had quite some trouble with this and have attempted multiple ...
-1
votes
1answer
883 views

Arduino-Bluetooth HC-05 Android app blueterm connection for chatting

I want to communicate between an arduino and an Android phone that has an Android app blue term. I connected HC-05 with Arduino using software serial and I connected the hc05 as a device with the ...
1
vote
0answers
44 views

Arduino recorder Wi-Fi device [closed]

I wish to build a simple headless device, powered by a 9 V battery that allows a person to speak into it upon touch. The device would then capture to allow "speech to text" functionality and, ...
-1
votes
1answer
272 views

Picking the time a led on an arduino should turn on, via android

I have created an app which is connencted to my arduino via bluetoth. The user of the app can turn on and off a led which is connented to the arduino. But I want to take it a step further... I want ...
1
vote
1answer
239 views

Configure HC-05

I am trying to send/receive data from Android to my Arduino (via a HC-05) and later from Arduino to Android. I have configured my HC-05 as slave, and the UART=9600,0,0.... To send data from Android to ...
1
vote
2answers
1k views

Sending RFID data to an Android app [closed]

I have fetched the RFID tag value using an RFID reader and it is now in my Arduino's serial monitor. I have to send it to an Android app. I need help on how to do this. I don't want to use Bluetooth.
1
vote
1answer
713 views

Can Android phone can be used instead of( or with) Arduino as controller?

I am Android application developer and I want to modify regular toy RC car which can be controlled by Android phone. I want to use 2 Android phones: 1 as remote controller, 1 as controller in RC car. ...