I have a PCB DRONE that is using RN42-I/RN for Bluetooth communication.
The drone is controlled with smartphone APP.
I am making a hardware controller for that drone, so I got the same RN42-I/RN BT Module and connected it to my pc using a UART TO USB converter.
I configured the RN42-I/RN as master
here are the settinges pulled out using command "D" and "E".
***Settings***
BTA=0006668CB21E
BTName=HHController
Baudrt=115K
Mode =Mstr
Authen=1
PinCod=1234
Bonded=0
Rem=0006668CB270
***ADVANCED Settings***
SrvName= SPP
SrvClass=0000
DevClass=1F00
InqWindw=0800
PagWindw=0800
CfgTimer=255
StatuStr=NULL
HidFlags=200
DTRtimer=8
KeySwapr=0
when I send "I,10" to scan for the drone I get
Inquiry,T=10,COD=0
Found 2
0006668CB270,XMC-Bluetooth,1F00
Inquiry Done
XMC-Bluetooth is the drone but when send "C,0006668CB270" the connection fails
what am I doing wrong??
Note that I can connect the drone to my phone with no problem.
I think that the problem might have to do with the pairing code, which is a code that appears on the phone when i connect and i only have to press connect and it connects. this code is only used to insure you are connecting the right device it is not a passkey
I have tried with HC05 to but had the same result.
Related
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=<Param>,<Param2>,<Param3>
Example: AT+INQM=1,9,48\r\n
But instead of converting AT commands using serial.h with embedded C, I am looking for any dedicated library which helps to work this kind solution in using Arduino.
Basically, with the help of Bluetooth device connect to Arduino Nano, I want to send the altimeter sensor data to my smartphone.
During the connection, HC-05 should be responding any one device at a time, if another smartphone tries to pair then the error will be shown.
Please share your advice on this.
Yes there are some libraries in arduino but these are only meant for connection and pairing and low energy connections. We don't have any dedicated library from where we can control the mode of operation of HC05 or any bluetooth module. like bypassing or accessing GAP and GATT services of bluetooth. However there is a way to flash HC-05. But we can only use it for updating the firmware of this device. This github repo is dedicated for this purpose . Hope it helps you
Firstly, I'll just give you a brief introduction about our project... its "Speech controlled Home Automation System" where we are controlling the Home appliances by the voice or speech commands. We're successfully done with the voice recognition module. But our problem is with achieving the communication between the transmitter {where the user gives the voice command} and receiver {where the home appliances are present} through WiFi i.e. we have got 2 ESP8266 12E modules interfaced with Arduino both at the transmitter and receiver side and these two WiFi modules need to be communicated(To interchange some data sent by Arduinos).So please let us know which Arduino code need to be used at transmitter side wifi module and at Receiver side wifi module and also about the header files or additional softwares(if any)to be used.
you can achieve this by starting one of wifi modules in Access Point Mode and the other one has to be set to Station Mode in order to connect to the first one.
In case you want to add a router, just set both ESP8266 modules to Station Mode and connect them to the router.
And then transfer any data you want through AT commands of ESP8266.
Here is the refrence to them.
https://room-15.github.io/blog/2015/03/26/esp8266-at-command-reference/
If you are newbie to Esp8266 and Arduino , this will help you.
http://www.teomaragakis.com/hardware/electronics/how-to-connect-an-esp8266-to-an-arduino-uno/
Good Luck !
I worked on a similar system a year ago. I was developing a remote controlled toy. My main difference was I used the ESP8266 without an Arduino attached.
One ESP worked as a a WiFi hotspot and the other connected to it, sending messages through UDP.
For some reason, I could not get the two ESP modules to connect (I think it was a problem with the board I had), but I sent messages from my computer, and it worked out fine. I will not burden you with all of the code, but here is the GitHub link.
All that needs to happen is they will be on the same WiFi network, and then you can use the ESP8266 WiFi library to send messages between the two. Like I said above, I used UDP, which is good for high speed, with no error checking. But there is also TCP (higher up, has error checking code), or you can use the server/client part of the library to set up a full web server and read/write data to it. Without knowing what type of data, I cannot comment on what would be the best method.
As for headers, you will need WiFi.h, and if you are using UDP you will need WiFiUdp.h
You should not need any external software besides the Arduino IDE.
I taught myself from scratch for this product, using two main resources: the Arduino library reference, and the docs on the ESP8266 Arduino GitHub page
I have two bluetooth HC-6 module and two Arduino UNO board. I want to connect these two arduino module using these bluetooth module. Can i connect?
HC-06 is a Slave only device, which means that you can connect your smartphone to it to send and get data, but itself can not act as a Master. You need at least one module that can act as Master, such as HC-05.
Note that HC-06 looks physically just like the HC-05, and not necessairly cheaper, I believe.
One connected to a HC-05 zs-040 and one connected to a HC-06 zs-040.
The HC-05 has a connection from pin 34 to +3.3v. This activates “full” AT mode.
enter image description here
how the bellow connection can be done , what the protocol that must be used to send bytes from computer through it's serial WiFi and receive the bytes in Arduino using ESP8266-01 WiFi Serial Transceiver Module.
computer AND esp8266 WITH arduino
It depends on what you want to accomplish, and what roles you want the computer and the arduino/esp combi to play. You can put the ESP in station or access point mode (or mixed), and have it talk to the arduino via the serial interface. The communication with the PC will indeed go via wifi/tcp protocol, but depending on your specific requirements you will have to decide one the roles. Then you can make the ESP a web client or a web server, mainly depending on the direction of the flow of information.
I assume you want to query the Arduino from the PC, in which you can send a HTTP/GET request from the PC to a simple web server on the ESP.
There are various examples in the Arduino examples that do just that to give you a start, available when you install the ESP library in the Arduino IDE, see: https://github.com/esp8266/Arduino
HTH
I wrote a piece of software which does nothing else than reading network status and signal strength for each network mode (gsm, wlan (wifi), bluetooth, ...) on my device (Nokia E51) and printing it out.
My test device is connected to bluetooth, wlan (wifi) and 3G (wcdma), but it's only able to give me the signal strength of 3G (and also returns the correct name of my carrier). for wlan and bluetooth it gives me the undefined state und isn't able to read any signal strenght. But I am able to receive the IP address of the network I'm connected via wlan.
All I do is:
QSystemNetworkInformation::networkSignalStrength(QSystemNetworkInformation::WlanMode);
and calling the method for the network status.
As I said, it works flawless for 3G.
Any ideas? Thanks a lot.
After an SDK update, everything works fine without any code changes. So the problem wasn't in the coede, but in the QtMobility backend.