Questions tagged [hc-05]

Refer to the HC-05 Bluetooth module.

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12 views

Can I Control My Android Game with Arduino Gamepad

I have a project that I need to make a game(guitar hero like rhythm game) on unity for android and develop a custom controller for it that works on mobile game. I decide to use Arduino and hc05 module ...
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19 views

Not Receiving HC-05 data

I've been trying to use this HC-05 bluetooth module for a project, where the data would be sent to a Max/MSP/jitter program. Initially, every time I connected my bluetooth device to my computer, it ...
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48 views

Master and Slave Code using 2 Arduino. 1 for PC and 1 for Sensor

I'm trying my gesture sensor to act as a keyboard. I'm using 2 Arduinos to communicate; 1 is connected to the PC (Arduino Pro Micro) and 1 is connected to the sensor (Arduino pro mini) Can you tell me ...
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22 views

Use HC05 and FTDI as Slave to Connect to control PC using HC05

Hi i just wanna ask if its possible to do this on HC05. So i can send some keyboard function? and if yes can you tell me how. Thanks
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0answers
29 views

Cannot detect Bluetooth device when connected to female receiver with PS4 Joystick

I am trying to connect the Bluetooth transmitter to a female receiver via an Arduino Uno. The button blinks, but the Bluetooth is not visible in any device. i want to connect PS4 controller using HC05 ...
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38 views

HC-05 voltage divider

I am currently testing a small Arduino Nano project (schematic below) and have encountered issues when communicating between a HC-05 Bluetooth module and the Arduino. I am using a simple LED bulb ...
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1answer
46 views

Arduino with HC-05 Bluetooth Module | No data will be transmitted

I've got an Arduino Uno (Elegoo R3) and a Hc-05 bluetooth module. First of all i want to send data with an android app (Bluetooth terminal) to the Arduino and turn pin 13 (LED) on. My Arduino code: #...
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1answer
36 views

Movement and storage of servo positions via bluetooth

I am trying to program a 4DOF robotic arm (using 4 servo motors). I would like to move the servos using an Android app, by means of bluetooth (HC-05). I developed the app, in whose interface there are ...
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25 views

Schematic for HC05

I want to make a camera shutter device which can be connected to bluetooth of smartphone and when I press a button on device, it will click a picture. like this https://www.amazon.in/Vomoco-Bluetooth-...
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0answers
17 views

What do i do to get my bluetooth module to light up?

I'm very new to arduino and am doing my first project, a bluetooth run robot. When i plugged in my module to my laptop to upload the code, the module lights up, and afterwards, i was able to run it on ...
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2answers
38 views

Hc-05 bluetooth module pairing issue

Module light is blinking/working but it's not showing for pairing in my smart phone.I have supplied it 3.3 volts and have tried different phones.
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1answer
87 views

How to fix HC05 burning even after while using voltage regulator?

I'm using two circuits for my wireless head mouse project, one of them is a transmitter circuit with Arduino Pro Micro, HC05 Bluetooth module, Elechouse Voice Recognition Module V3.1, GY-521 module ...
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2answers
112 views

Bluetooth module vs wireless module Arduino

My main question is, what is the main difference between HC-05 Bluetooth module and NRF24L0 wireless module? Which should I buy? Which makes these 2 modules different than each other? Which one should ...
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1answer
74 views

Will Setting Interrupt Pin High Damage Bluetooth Module?

I want my HC05 Bluetooth Module to trigger an interrupt when it receives a signal. So I've followed suggestions from the Arduino Forum and connected the Bluetooth TXD pin to the Arduino RX Pin and the ...
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1answer
60 views

Failed HC-05 Bluetooth sketch upload - (port and board correct)

I'm running this project with HC-05 https://create.arduino.cc/projecthub/millerman4487/view-serial-monitor-over-bluetooth-fbb0e5 and I am getting connection error. I have ensured my port selected and ...
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0answers
54 views

HC-05 will NOT pair in Master mode (AT+ROLE=1). Same module will pair in slave mode (AT+ROLE=0)

I have a HC-05 Bluetooth module Version (+VERSION:2.0-20100601). I am using Linux Mint Rosa on an Acer laptop Section 1 - How it's wired Wiring HC-05 Arduino VCC 5V GND GND TX ...
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1answer
101 views

How to send and receive multiple integer values through serial comm for Arduino Micro and HC05 bluetooth?

I need to send gyroscope values and a voice command flag and counter with a start and end marker through serial in the format <2,4,5,6> through Arduino Software serial using the HC05 Bluetooth ...
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0answers
60 views

Gamepad connection using Pro Micro(ATMEGA32u4 + HC-05

I have been working on making a HID compatible Gamepad using Pro Micro and HC-05 module. I have successfully configured the class of HC-05 module to appear as an Input device(A gamepad) on my PC ...
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0answers
67 views

hc-05 getting rssi value code problem

Hi I am trying to get RSSI value from my HC-05 bluetooth module that is in master mode. I wrote some code but it did not work. Can you help me get through this? My HC-05 is in AT command mode and I am ...
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3answers
86 views

sensitive distance detection using 2 HC-05 module/ 2 arduino unos

Hi I am doing a project in which I use 2 HC-05 modules and 2 arduino unos driving them. 1 bluetooth module is master and the other is slave. Master module is stationary while slave is moving. If the ...
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0answers
88 views

How to fix why AT command gets no response from serial monitor for HC-05 Bluetooth module with Arduino Micro?

I am trying to send numeric data from master HC-05 to slave HC-05 Bluetooth module for the purpose of processing it. But I first need to pair the Bluetooth module. I have tried different tutorials and ...
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23 views

Is it possible using a hc-05 bluetooth module as master and pair it to a hc-06 module?

I have configured a hc-05 bluetooth module as master and a hc-06 module as slave an since the LED on the hc-05 is blinking in a 2s delay they should be paired but no matter what I do I can't send data ...
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1answer
34 views

Can Bluetooth HC-05 Module detect other modules and relay data back to phone?

I want the following to happen: The HC-05 is paired to a phone. The module is called "Amy". The module is worn, say, as a wristband by a person. Amy passes another wristband-with-HC-05-...
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0answers
155 views

Bluetooth module HC-05 firm 3.0, master connection impossible

I recetly acquired a Bluetooth Module for Arduino, the HC-05. My project is to create a dashboard thanks to ELM327 Bluetooth OBD. But my HC-05 is with firmware 3.0, and during my research I discover ...
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1answer
95 views

Motor cutting out when using HC-05 Bluetooth module

I'm using an L293D motor driver chip along with an HC-05 Bluetooth module. The two work as expected separately - I can send a string via a Bluetooth terminal app on my phone to the HC-05 and I see it ...
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0answers
53 views

HC-05 Stuck in slave loop mode (loopback)

got my HC-05 today and accidently set the AT+ROLE=2(slave loop) and now I can't get out of it! Anything I send it just resends it back to me, even commands like AT+RESET and AT+ORGL, they just get ...
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2answers
48 views

Long term stability of bluetooth connections

I have two Arduino Megas with HC-05 on Serial1 connected to a Raspberry Pi 3b+ via bluetooth, using the HC-05 and the RPi's built-in bluetooth, and python's pySerialTransfer library to make the ...
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2answers
109 views

Hardware/software serial for HC-05

can anyone please tell me the whole difference between hardware and software serial for the HC-05. I read UART,USB cable, serial and I was like really confused so what is the difference and advantages ...
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1answer
48 views

Reset HC-05 from within Arduino sketch

I have an HC-05 Bluetooth module attached to an Arduino Mega; the module is paired with a Raspberry Pi and fed data via a python program; there's roughly one send and one receive per second of about ...
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0answers
36 views

How to use HC-05 to recieve data?

I am trying to control an led with a bluetooth module, but it is not working with an if else condition. When I use this code I found on the internet the led blinks when I send the string from an ...
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0answers
37 views

Bluetooth module HC05 does not react to bluetooth signal from smartphone

I try to switch off two leds with a hc05 module by sending the signal from my phone. I know there are a lot of examples on the internet and I tried some of them, but they dont work either. I use a ...
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1answer
128 views

Arduino bluetooth HC-05 data reading problem

I have a problem with bluetooth module HC-05 and servos. If I type in bluetooth terminal 4,1 I want that servo1 turns 60 degrees 3 times. Briefly servo1 turns 60 degrees and then servo2 goes 180 and ...
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1answer
72 views

Arduino bluetooth HC-05 servo control

I am using HC-05 Bluetooth module to control two servos. I use Bluetooth terminal in my android phone to control them. Problem is that myServo1 is moving like I want but I can't control myServo2. ...
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0answers
111 views

How to program GPS and Compass guided robot? [duplicate]

I am using the following things... Ublox Neo 6m GPS module HMC58883L magnetometer HC 05 for BT HC SR04 for obstacle avoidance Arduino mega I am using the following libraries (given as links): 1....
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2answers
198 views

How do I make a proper long string scanner to detect specific tags in a stream of characters?

Here's my code: #include <SoftwareSerial.h> SoftwareSerial BTserial(2, 3); // RX, TX void setup() { Serial.begin(9600); BTserial.begin(9600); Serial.println("Communication with HC-...
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1answer
63 views

First time working with arduino, need help adapting project from UNO to NANO

This is my first time working with an arduino and I'm having some issues when trying to copy a program I found online on my Nano. Basically, my project consists in a pulse sensor that sends the pulse ...
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0answers
41 views

Arduino-compatible Bluetooth classic module to use in a product

I've been designing a product for some time using arduino language, but on our own hardware. Recently a need arose to add some Bluetooth capability to our product. We decided to use BT classic instead ...
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0answers
52 views

NodeMCU hc05 Connection

I am using a NodeMCU from Amica. I tried interfacing the HC-05 module to the NodeMCU. The following code works fine without any errors #include<SoftwareSerial.h> SoftwareSerial btport(D2, D3);...
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0answers
42 views

HC-05 Bluetooth module does not send or receive data when its on-board light blinks(light blinking after its connected to a device)

HC-05 Bluetooth module does not send or receive data when its on-board light blinks(light blinking after its connected to a device) as soon as the on-board led starts glowing it does not send or ...
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0answers
357 views

Arduino Bluetooth upload problem HC-05 v4.0

I upload code into arduino nano using a self-made PCB with bluetooth using this method. I was initially using Arduino Nano (chinese Clone, the one with CH340G) and Bluetooth module HC-05 (version 3.0) ...
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1answer
63 views

Basketball board arduino endlessly transmitting shot scored

I've been working on trying to get this arduino project I found to work but I've been encountering some problems. The project was designed for an Arduino mega 2560 but I've been using my UNO and ...
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1answer
108 views

Problem with HC-06 receiving data

I have paired 2 BT modules HC-05 and HC-06. When I write something through Serial Monitor and send it from HC-05 to HC-06, everything works well. But when I send continuous data through loop, HC-06 ...
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0answers
54 views

ASCII and hex bluetooth car

Hi I am trying to send numbers to my arduino car to make it drive. But if I send it a value I get some hex value back I believe. If I send empty text via CoolTerm i get " m j " back to my terminal #...
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0answers
892 views

Please help! My Bluetooth Controlled Car Isn't working

I followed this tutorial: enter link description here I built it according to the schematic except I didn't connect an LED (I assume this isn't the problem). This is the schematic: I'm a beginner so ...
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3answers
30 views

Help me get my robotic car to work?

So I recently followed a tutorial on youtube and I've assembled the car and connected all the wires. What I've done: Car Now in the video, when the guy connects all the wires, the wheels constantly ...
1
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1answer
229 views

Connecting MPU6050 to Arduino Lilypad

To preface, I am very new to Arduino and I watched this video on YouTube. It shows how you can build a motion controlled car with Arduino and I decided to make this for my school project. One thing ...
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1answer
126 views

Audio Recording using Arduino BT module

I want to take audio signal through mic connected to Arduino and then transfer it to PC using BT module. I want to do it with BT (HC05) and Arduino Mega. I need audio packages at 44 KHz and 24-32 bits ...
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1answer
79 views

Nothing gets sent to Arduino from Processing

I have a problem where I kwow that my bluetooth module (HC-05) is connected to a processing sketch, but nothing ever gets sent from the processing sketch,why? No error messages but the info never ...
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0answers
156 views

Can HC-05 Continuously Stream data and read data at the same time?

I am trying to have my Arduino Stream an Analog Signal using Bluetooth Module (HC-05) while being able to read commands from another Micro-controller using the same Bluetooth Module. Currently, I am ...
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1answer
1k views

My HC-05 Bluetooth Module is not working

I have been trying to use the HC-05 Module with my Arduino Uno to control a LED, which can be turned on and off by my phone. Everything is fine when i input the values from the serial monitor. The ...