Questions tagged [hc-05]
Refer to the HC-05 Bluetooth module.
167
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3
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0
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30
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HC05 and ELM327 NODATA sending PID codes
I am working on a project where I am using an HC05 connected to an Arduino to connect to an ELM327 Bluetooth scanner. I am using the SoftwareSerial Arduino library to send and read information from ...
-1
votes
0
answers
19
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Sending data from UNO with HC-05 to another UNO with HC-05 : TX_ERR Error [closed]
I have two Arduino UNOs that are each connected to at ZS-040 (HC-05) Bluetooth module. They are configured in a master/slave configuration. The HC-05 modules connect to eachother, and I can ...
-1
votes
1
answer
48
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I am receiving the wrong message when sending a message between 2 Arduinos
What I'm trying to do is fairly simple
I want to encode a flag and numerical value into a message and transmit it to another arduino using the HC-05.
I am receiving the numerical value on the other ...
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1
vote
0
answers
40
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Communication between two hc 05 Bluetooth modules not working
I Have a problem with the connection between two hc 05 modules. The bluetooth modules are paired using AT commands. But when I run the code I cant get any data from the reciever. The bluetooth modules ...
1
vote
1
answer
79
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Arduino + HC-05 Problem: AT Commands are not working
Device: Laptop, HC-05, Resistor 2.2k and 4.7k, Arduino Uno R3
So im trying to rename and change password of my HC-05. for full detail schematic diagram. Here(the difference is, i also used the STATE ...
- 81
-1
votes
1
answer
60
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Constantly Stream data vía Bluetooth to monitoring
I am using a Bluetooth module HC-05 to Stream data from Arduino to My computer. In they computer I am using a python script to receive
They specifications:
Baud rate: 9600
But I am getting an error. ...
-1
votes
1
answer
35
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Servo retaining its position every time I send some value
I wanted to control my servo with a Bluetooth module.
I gave certain values for rotating it. When I press those values the servo rotates, but then retains its original position and the PC also makes ...
0
votes
0
answers
34
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Can't pair two HC-05 (Master - Slave)
I want to connect two HC-05 modules, one master and one slave. So to that I need to access 'AT Commands'.
Theoretically, I just needed to upload an empty code, and then connect the module to the ...
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2
votes
1
answer
209
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HC-05 Bluetooth module; two serial ports, COM4 and COM5
I'm learning how to use the Arduino HC-05 Bluetooth module. After pairing to it with my laptop I saw that I was getting two serial links, COM4 and COM5, as can be seen from the picture below.
On COM4 ...
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1
vote
0
answers
102
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Bluetooth Upload is Hanging
I am trying to program my Arduino via bluetooth and have been following this tutorial very closely in order to do so: https://www.instructables.com/Program-an-Arduino-Wireless-Over-Bluetooth/
I have ...
- 21
1
vote
1
answer
106
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ESP8266 with HC05 : expecting to receive more bytes then the 63 received
I'm trying to read a Ant BMS 32H with a ESP8266 and a HC05 module.
BMS is sending 146 bytes when asking for these by sending DB DB 0 0 0 0 (HEX)
I did test with my android phone and the app 'Serial ...
- 11
1
vote
1
answer
168
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Can’t send string from arduino to processing via hc05
I’m trying to send and receive data from my laptop to arduino nano via hc05 Bluetooth for a rocket flight computer. For some reasons which I don’t know, I can send data from processing software using ...
- 33
2
votes
0
answers
144
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HC-05 bluetooth module stops working when blinking
I'm using this HC-05 Bluetooth module to communicate between my Arduino mega 2560 and my laptop. I am using processing to send the data from my computer to the Arduino.
The module connects nicely and ...
1
vote
0
answers
507
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Bluetooth module with lowest latency to communicate with PC
I am making a haptic feedback glove using Arduino and HC-05 bluetooth module to communicate with PC.
There are rotary encoders on the finger which send value to PC through Arduino mega. The PC returns ...
- 11
0
votes
1
answer
227
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How to switch HC-05 from DATA mode to AT mode?
I am asking how to enter from the data mode to the AT command mode without restarting and disconnecting any power supply. In other words, I am trying to make a driver to handle HC-05 module and now I ...
- 23
1
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0
answers
97
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AT+IPSCAN HC-05 Command
I have a HC-05 module, directly connected to an STM32 via UART interface and connected simultaneously to a mobile application in order to exchange
real time data. I am trying to reduce the power ...
- 23
1
vote
0
answers
109
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Bluetooth module not working
I was following a tutorial on YouTube to build a Bluetooth car with Arduino.
#include <AFMotor.h>
//initial motors pin
AF_DCMotor motor1(1, MOTOR12_1KHZ);
AF_DCMotor motor4(4, MOTOR34_1KHZ);
...
1
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0
answers
255
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HC-05 bluetooth module short range
I have started learning about arduino and just bought a bluetooth module, HC-05. From where i bought, it says it has range of approx.10 meters. I made hc-05 connection with arduino in below described ...
- 11
1
vote
2
answers
118
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I need a good battery reccomendation
I have simple project composed of an Arduino Nano, a HC-05 module, and a small toy DC motor controlled using a L293D driver, I want to be able to power this circuit entirely using a battery, here is ...
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2
votes
1
answer
174
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HC-05 drops connection, then DC Motors won't stop moving 'forward'
This is my first post. I seek you guys' help with my problem. Basically, my project is a Mobile-App Bluetooth Controlled WheelChair. Everything's done except a minor problem comes out during testing. ...
- 21
1
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1
answer
2k
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HC-05 Module not receiving commands and not pairing
I'm working on a project where I'll need to establish a connection between two HC-05 modules, each connected to an Arduino, but for now I'm just trying to get one to work and connect to my phone, but ...
- 23
0
votes
1
answer
555
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Does HC-05 module buffers the data received?
I am using HC-05 bluetooth module for sending large data(80-100KByte) from my phone to arduino-uno.
I had found that this module has a flash chip of 8Mbit (SST39VF800A) but the datasheet of HC-05 has ...
1
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0
answers
147
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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 ...
- 21
1
vote
0
answers
199
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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 ...
- 11
1
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0
answers
114
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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
1
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0
answers
46
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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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1
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0
answers
104
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 ...
- 29
1
vote
1
answer
281
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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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2
votes
1
answer
45
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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1
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0
answers
21
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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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2
answers
203
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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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2
answers
493
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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 ...
- 161
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2
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2k
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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 ...
0
votes
1
answer
318
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 ...
- 205
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1
answer
363
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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 ...
user67776
1
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1
answer
792
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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 ...
- 19
1
vote
1
answer
298
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 ...
- 161
1
vote
0
answers
237
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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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votes
3
answers
375
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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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1
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0
answers
68
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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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0
votes
1
answer
104
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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-...
- 115
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1
answer
399
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 ...
- 109
1
vote
1
answer
226
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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 ...
0
votes
2
answers
127
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 ...
- 39
1
vote
2
answers
400
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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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0
votes
1
answer
339
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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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0
answers
108
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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 ...
user64023
1
vote
0
answers
186
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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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0
votes
1
answer
700
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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-1
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1
answer
192
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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. ...
