HC-05 Bluetooth AT+INQ command not working

arduinoat commandsbluetooth

I have followed the directions from the site below for bluetooth comm between an Arduino board using the HC-05 and an smartphone. It works fine.

The problem is that I need to measure the RSSI from my phone and using the command AT+INQ the response from the HC-05 is "OK" and nothing else.

I paired both devices using my phone as master and the HC-05 as slave, and when I am sending commands to the HC-05 through the Arduino, the pin KEY from the HC-05 is set to high (3.3V).

Do you have any suggestion to solve the problem I am facing?

Best Answer

You have to set the module in MASTER mode to determine RSSI values. So the ideal method would be as follows:

AT+INIT
AT+CMODE=1
AT+ROLE=1
AT+IAC?
AT+INQM?
AT+INQ
AT+INQC

AT+INIT will initialize SPP,after which making CMODE=1 enables all devices to connect and then you set the module in MASTER mode(by default it is in SLAVE mode, and hence you will not be able to determine RSSI). After this the procedure is almost same as you have mentioned.

Cheers!

Related Solutions

Electronic – arduino – Seeedstudio Bluetooth Bee

I found some example code on a website, this fellow is doing almost exactly what I'm doing, just the information is going from phone to Arduino, not Arduino to phone.

All the code is downloadable, and I've checked it out - I'm going to try the PDE, and see if I can connect from my Mac and U8300.

It also includes constructs for the code I need on the phone side, which was going to be my next question after this one - two for the price of one!

http://ai.kittywolf.net/index.php/BTArduinoLED1

Have a look, its said in the description that (paraphrase) "the initialisation sequence must be done right..." so I can now use this code as a guide.

Hope this helps!

Shane.

Electronic – Using BLE module by blueradios

in [https://www.sparkfun.com/datasheets/RF/BlueRadios_ATMP_Commands_Rev_3.5.2.1.4.0.pdf][1]

You might be refer the following sentences. First your arduino boards' UART TX/RX/GND pin to BlueRadio's RX/TX/GND connect. and you programming the arduino board uart to 9600 baud, 8bit,N (no parity)

It's HW setup. also, You can first setup your BlueRadio module with PC UART.

Blockquote

Embedded testing: For the DB9 (RS-232) connector, connect the TX(2), RX(3) and GND(5) to the embedded computer or micro controller. If you are not using hardware flow control, connect RTS(7) to CTS(8) on the DB-9 connector. When connecting the TX and RX from the DB9 connector, you cannot connect/short the CTS and RTS at terminal J4 these are two different circuits.

Blockquote

And in your arduino or in your PC Serial program,

    UART.send("ATFRST\r\n");
    // and wait "OK" or "ERR"
    UART.recv(buf);
    if (strstr(buf, "OK") )
    { 
         // ok factory reset
    }

do like this way , you refer the following document's AT command lists.

Best Answer

Related Solutions

Electronic – arduino – Seeedstudio Bluetooth Bee

Electronic – Using BLE module by blueradios

Related Topic