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Questions tagged [bluetooth]

Bluetooth enables short-range wireless communication between devices.

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0answers
44 views

Arduino Bluetooth to Control Joystick Issue

I am trying to control a robot, where I have one HC05 module as a master connected to an Arduino Uno with an attached joystick. This Arduino sends data signals that will run blocks of code on the ...
6
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5answers
31k views

Arduino Pro Micro, get data out of Tx pin?

I have a Sparkfun Arduino Pro Micro with an ATmega32u4 on it and a Roving Networks RN32 Bluetooth Module Theoretically, I should be able to solder the Rx of the Bluetooth to the Tx on the arduino and ...
9
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4answers
4k views

Choosing wireless tech for lowest possible lag

I am drafting a pub quiz project, where the Referee gives a signal and multiple players push their buttons. The first to push wins the right to give an answer. I want all buttons (referee's + X ...
3
votes
1answer
261 views

Change Servo Speed With RedBearLabs BLE Shield

I recently got the RedBearLabs BLE shield to use it to control two high spped continuous rotation servos. I have the BLE example sketch loaded and the ios controller app works. The problem is that the ...
1
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2answers
3k views

Programatic FOTA (Firmware-Over-The-Air) upgrades with Uno R3

I have been searching for a way to upgrade the sketch on my Arduino Uno wirelessly (preferable WiFi, but not a must). Does the Uno support such function? If not - are there any other boards that might ...
1
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1answer
856 views

Program arduino via USB while using a Bluetooth module (HC-06) [duplicate]

I have my Arduino Nano connected to the HC-06 module (with the RX/TX pins). My issue is that when I try to upload new code to my Arduino (via the Arduino IDE, through the USB connection) the Arduino ...
0
votes
1answer
33 views

Split serial monitor output to only save part of the output

This is the output i get from the serial monitor from using a HM10 in . How could i go about splitting the data using arduino uno. I only want to save the last 12 digits before the :- (4CAA0DE091B7) ...
0
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1answer
2k views

Problem : Trigger limit switch to stop DC motor

I want to make a project about automatic gate and garage door via Android app and connected by HC-05 bluetooth module. Each of the gate and garage door have two limit switches(located at each end of ...
0
votes
1answer
3k views

Sending data using Bluetooth SPP-C Module without a Breakout-Board

tl;dr I can't send data using the raw SPP-C Bluetooth module without a breakout board. The communication via UART works fine as I am able to issue AT commands and get proper responses. But when ...
2
votes
3answers
11k views

How to receive data via Bluetooth on an Arduino 101?

The Arduino 101 came out recently, and it has built-in "Bluetooth Low Energy" capabilities. The tutorials and code examples that can be found for the 101 all seem to be about transmitting data, but I ...
-1
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1answer
278 views

Install Bluetooth inside a home theater, How?

I have a 5.1 home theater(old one), I would like to transform it into a audio streaming system. I have a Arduino UNO and HC-05 Bluetooth Module, and I don't know how to install it in my home theater(...
1
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0answers
106 views

Arduino not responding while trying to flash over BLE

I'm working on wireless uploader for Arduino from iOS devices. I'm using HM-10 BLE module which seems to work ok. PIO 2 is used as DTR for resetting (see A [0x41] T [0x54] + [0x2B] P [0x50] I [0x49] O ...
1
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0answers
324 views

Yun as bluetooth master

How does one make an outgoing bluetooth connection? I have already installed packages for bluetooth, and have run hcitool scan to find the BT address. And I'm using a USB BT dongle. Output of lsusb ...
1
vote
2answers
93 views

Arduino Bluetooth communication is slowing down because of the 'for' loop!

I'm sending data to Arduino through the mobile app. So far, all the code has been running consistently. #include <SoftwareSerial.h> #define FASTLED_INTERNAL #include <FastLED.h> #define ...
1
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2answers
828 views

SoftwareSerial problems

Hi we are using an Arduino Micro and working with a Bluetooth device and a Rfid Scanner from Sparkfun(ID-20 LA). For that we implemented 2 SoftwareSerial objects and the Serial port for the Serial ...
1
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2answers
2k views

Can I use a 6 pin Bluetooth module in a 4 pin socket?

I have a Funduino joystick shield and it features a 4 pin bluetooth socket in the top right hand corner (just above the D, T, - and + legends). For some reason, on eBay, 6 pin bluetooth modules are ...
1
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1answer
290 views

Does baud rate for HC-05 Bluetooth module need to match the Serial Monitor?

I have this sketch that I got as a sample. I have the two HC-05s connected. What I type in one serial monitor shows up on the other, but as question marks. The most common reason for this I find is ...
0
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2answers
2k views

Bluetooth sending values from two joysticks

Is there any good way of sending values from two joysticks from arduino A to arduino B? I tried sending using if statements, so if the Y- or X-axis' value changed then it would send that, but the ...
0
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2answers
9k views

HC-05 Bluetooth Module - INQ-Command doesn't work

For a project I need to connect a Bluetooth Remote control with an Arduino Nano. The Problem I am trying to setup a connection to said Bluetooth remote Control. This device is visible! (I have ...