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Questions tagged [hc-05]

HC‐05 module is Bluetooth SPP (Serial Port Protocol) module. Use HC-05 to communicate with any device with Bluetooth functionality like a Phone, PC or Tablet.

HC‐05 module is Bluetooth SPP (Serial Port Protocol) module. Use HC-05 to communicate with any device with Bluetooth functionality like a Phone, PC or Tablet.

114 questions
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Problem with using analogWrite() in arduino

I am using Arduino Mega, Dc Motor and Cytron 10A motor driver. I want to control the speed of the DC motor. I am using HC-05 to control the robot. Here is my code: Arduino: #define AN1 12 #define AN2 9 #define IN1 13 #define IN2 11 char inChar; void…
Vaibhav Thacker
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how to trim unknown first characters of string in code vision

I set a mega16 (16bit AVR microcontroller) to receive data from the serial port which is connected to Bluetooth module HC-05 for attaining an acceptable number sent by my android app and an android application sends a number in the form of a…
Seyyed Hossein Ghenaati
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bluetooth HC-05 transmission to f103rb

I have to connect my SMT32f103rb to bluetooth module hc-05 and make a transmission between mobile phone connected to bluetooth module and computer. I connected it like: hc05 VCC -> +5V stm hc05 GND -> GND stm hc05 TXD -> PA10 stm hc05 RXD -> PA9…
pprunner
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Connecting to ELM327 BT with HC05 [STM32] (Not as simply as look like)

i would like to connect STM32F4 with ELM327 via bluetooth using HC-05. I've got some specifc problem. Everytime when i try to use "AT+LINK", the HC-05 responds "FAIL". Hardware: STM32F411V + HC-05 iCar2 Vgate elm327 BT v3.0 I've already…
HansAndDeep
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Serial Communication is not working properly in Arduino connection with HC-05

I am new to Arduino Programming. This code works fine. It gives the correct output and functioning well. But I wanted to write the commands automatically without typing repeatedly. #include SoftwareSerial BTSerial(10, 11); //…
Sreenu Murugesan
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Voice Recognition module V3.1 and Bluetooth module (HC-05) not working together (Arduino)

The Bluetooth module(HC-05)and voice recognition module (V 3.1) work individually just fine with Arduino Uno but when I try to run them together then the one of them stops working that is the voice module stops working. I have't been able to figure…
vasu sharma
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Servo's aren't moving correctly

Here is my code: #include #include // servo library Servo servo1; // servo control object Servo servo2; Servo servo3; SoftwareSerial bluetooth(5, 6); // RX, TX int servo1Pin = 11; int servo2Pin = 10; int servo3Pin =…
Jako613
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Problems with connecting HC-05 Bluetooth module to PC

So i've been trying to connect my HC-05 BT module to PC. I'm sure i connected everything correct, i'm not new with arduino stuff. What i try to do now is i want to communicate with arduino using uart connection via BT. I have arduino leonardo, and…
Piotrek Wójtowicz
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I am not able to rerun the loop

I am using HC-05 with arduino and controlling a motor. I want a motor to run till a specific value (k) every time I send a character (Eg. 'R') from my app to Bluetooth. I am able to it once, but when I send 'R' again, It doesnot work. I want that…
Vaibhav Thacker
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How to show rssi of serial bluetooth?

I've made an app using android studio to connect to my Hc 05 Bluetooth. Next i want to show rssi of HC 05 in my android app. I am using SPP Bluetooth library to manage my bluetooth communication in my app. i have surfed in internet to how to show…
Yuda_Ihza
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servo robotic arm using arduino and bluetooth

I am trying to control servo robotic arm via bluetooth module hc05. All things connected properly. I am confused which control app will use. And also bluetooth does not send any data to arduino but light is blinking. If any one have robotic arm…
iamnaofil
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can't connect a socket to bluetooth paired device

I'm trying to connect my Raspberry Pi 3B to an Arduino that has an HC-05 bluetooth chip to send commands. I have successfully paired between the HC-05 and the Pi using Device 98:7B:F3:57:76:34 Name: BT05 Alias: BT05 Paired: yes …
Dan Sheinin
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HC-05 module connected with Arduino stops sending data to an Android app after 3 seconds

I am trying to send data which is appearing on Arduino IDE serial monitor to an Android app Blueterm via Bluetooth module HC-05. After connecting HC-05 sends data only for 2sec, even though app shows "connected HC-05". I need to send data for at…
tpg1
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receive garbage data while sending string from arduino to android using HC-05

all is in the title. I receive this ������������������ when i send String data from Arduino to android. I tried all to obtain the true value but Nothing. Please Help. Edits Arduino part here : #include #define rxPin 19 #define…
Savastaro Vegas
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Connecting controller to smartphone via HC-05 and node.js

I'm building an android app to act as an interface for an IOT controller. I already have the code for the chip, and it is connected to an HC-05 bluetooth module. I've tried using the bluetooth terminal from the app store and my phone successfully…
Shiroyasha
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