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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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Bluetooth HC-05 Serial data delay, buffer problem?

I am attempting to send via Bluetooth two variables, separated by a comma, I have the HC-05 module, an FTDI USB to Serial converter, connected through a RS232 to TTL converter. note that I am able to modify AT commands and stream data, however, the…
MAvitia
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Bluetooth HC-05 module

I have two HC-05 modules the first one's role as a Master and the other is a slave one. I've done some AT commands to set up each HC-05 module = Master's configuration has to be like that: name=Master, Password=2021, only accept connection from one…
Ayman Saleh
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HC05 does not connect

I am doing STM32 programming for my summer internship. Currently I am attempting to use an HC05 bluetooth module to send serial data over to the stm32 board. However, my HC05 bluetooth module does not connect to any of my devices. I am using android…
sungyuk1
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AT works at half for HC05

I am currently trying to send my sensor data from my Arduino to an android app made on android studio using an HC05 module for Arduino. I tried to configure the HC05 as every tutorial on the internet says, but i meet some problems. I am using the…
Romain
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Why are there two Standard Serial over Bluetooth links in HC-05?

I'm testing the HC-05 Bluetooth device and it works well using just one of two available "Standard Serial over Bluetooth link". I would like to know the purpose of another "Standard Serial over Bluetooth link" as it's working well using just…
Jose Silva
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Programming HC05

HC05 comprises of BL417 and a flash memory. I want to program BL417 to use its IO pins. can you help me with the BC417 coding. I read its datasheet and found that I can get the software from…
Muphy
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flutter_blue can't find HC-05 Bluetooth Module

I'm using flutter_blue for Android app. I've granted all required permissions and also enabled GPS on the phone. When it starts to scan, I can see a list of Bluetooth devices, but I can't find my HC-05 Bluetooth Module. However when the HC-05 module…
billcyz
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BluetoothCtl pairing with pin using python subprocess on Raspberry Pi

I am working on a project to communicate between a raspberry pi & a series of Arduinos, using the HC-05 bluetooth modules, over a bluetooth connection. I am able to pair the arduinos using bluetoothctl and the communicating using python scripts, but…
1QuickQuestion
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HC-05 Module sending data problem (Mater + Slave)

I've been working with a Siemens PLC to send data using RS232. The communication itself is working perfectly, I can monitor it if I connect the PLC to my PC (via a serial comm port). Now, I wanted to make this communication wireless. I found out…
gbernardon
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How to connect 3 bluetooth modules using STM32 and?

i am using STM32F407 and 3 HC-05 bluetooth module. I am trying to use 1 master and 2 slave at the same time. I can connect any slave to the master. I am trying to implement a simple alghoritm for 2 slaves. I change device address which master is…
Resul
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How to send float values from one bluetooth module to other(HC 05)

I am doing a project where I need to send data from ultrasonic sensor wirelessly present in one arduino to other arduino where I need these values in Serial monitor. But the problem is I cannot able to send these values through bluetooth. I tried to…
Deepakvg
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How to navigate through ionic app depending on data recieved from arduino via bluetooth

I am trying to communicate between arduino blutooth HC-05 and ionic app. I have succesfully connected the app to blutooth device and I am able to to read the data from the arduino and everything is fine.However, when I send data from arduino to the…
shiny star
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Loss of data in inputStream while fetching data via Bluetooth HC-05 in Android

I'm unable to fetch all data from inputstream while connected via bluetooth hc-05 on my android app. Here is my code: val knownUUIDForDevice = UUID.fromString("00001101-0000-1000-8000-00805f9b34fb") val remoteDevice: BluetoothDevice…
mtw
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Create the Pairing limitation on HC-05 sensor

I have been trying to set the limit of pairing the Bluetooth device HC-05(interface by Arduino controller) with my smartphone. I have tried making this solution work with AT command AT+INQM=,, Example: AT+INQM=1,9,48\r\n But…
varul jain
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Connect to two Bluetooth Devices with same UUID simultaniusly

i try to create an Android App that connects to two Bluetooth HC-05 Modules (which are connected to an Arduino). I am able to connect to both of them and if i only send Data to one of them everything works fine, if im sending Data to both however…
Hannes
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