Initialization steps followed:
UART4_Write("AT\r\n",4);
UART4_Write("AT+CWMODE?\r\n",12);
UART4_Write("AT+BLENAME?\r\n",13);
UART4_Write("AT+BLEINIT=2\r\n",14);
UART4_Write("AT+CWMODE=1\r\n",13);
UART4_Write("AT+BLEADVDATAEX=\"ESP_AT\",\"0000\",\"0000\",1\r\n",43);
UART4_Write("AT+BLEGATTSSRVCRE\r\n",19);
UART4_Write("AT+BLEGATTSSRVSTART\r\n",21);
UART4_Write("AT+BLEADVSTART\r\n",16);
UART4_Write("AT+SYSSTORE=1\r\n",15);
Once this is done, ESP_AT is visible on my phone, but as soon as I click the ESP_AT shown on my screen, it automatically disconnects with +DISCONN print and sometimes there are no prints.
My application requirement is to send a data from my mobile phone to the ESP32C3 Module and receive back the same data to my mobile. Kindly support me on this.
Issue with pairing the BLE with my mobile phone
Re: Issue with pairing the BLE with my mobile phone
Execute the at + clearvdataex command and the device has already started broadcasting, so you don't need to execute at + clearvdstart. You can refer to the document <establish spp connection between esp32 and mobile phone and transmit data in UART Bluetooth Le passthrough mode>(https://docs.espressif.com/projects/esp ... rough-mode).
Re: Issue with pairing the BLE with my mobile phone
I am referring to the same document : https://docs.espressif.com/projects/esp ... rough-mode
My BLE still disconnects as soon as I click to connect on my phone. Is there a process to follow for initialization as well?
My BLE still disconnects as soon as I click to connect on my phone. Is there a process to follow for initialization as well?
Re: Issue with pairing the BLE with my mobile phone
USART4 RX = AT+BLEINIT=2
USART4 RX =
USART4 RX = OK
USART4 RX = AT+BLEGATTSSRVCRE
USART4 RX =
USART4 RX = OK
USART4 RX = AT+BLEGATTSSRVSTART
USART4 RX =
USART4 RX = OK
USART4 RX = AT+BLEADDR?
USART4 RX = +BLEADDR:"34:b4:72:b2:68:52"
USART4 RX = OK
USART4 RX = AT+BLEADVDATA="0201060A09457370726573736966030302A0"
USART4 RX =
USART4 RX = OK
USART4 RX = AT+BLEADVSTART
USART4 RX =
USART4 RX = OK
USART4 RX = AT+BLEGATTSSRV?
USART4 RX = +BLEGATTSSRV:1,1,0xA002,1
USART4 RX = +BLEGATTSSRV:2,1,0xA003,1
USART4 RX =
USART4 RX = OK
USART4 RX = AT+BLEGATTSCHAR?
USART4 RX = +BLEGATTSCHAR:"char",1,1,0xC300,0x02
USART4 RX = +BLEGATTSCHAR:"desc",1,1,1,0x2901
USART4 RX = +BLEGATTSCHAR:"char",1,2,0xC301,0x02
USART4 RX = +BLEGATTSCHAR:"desc",1,2,1,0x2901
USART4 RX = +BLEGATTSCHAR:"char",1,3,0xC302,0x08
USART4 RX = +BLEGATTSCHAR:"desc",1,3,1,0x2901
USART4 RX = +BLEGATTSCHAR:"char",1,4,0xC303,0x04
USART4 RX = +BLEGATTSCHAR:"desc",1,4,1,0x2901
USART4 RX = +BLEGATTSCHAR:"char",1,5,0xC304,0x08
USART4 RX = +BLEGATTSCHAR:"char",1,6,0xC305,0x10
USART4 RX = +BLEGATTSCHAR:"desc",1,6,1,0x2902
USART4 RX = +BLEGATTSCHAR:"char",1,7,0xC306,0x20
USART4 RX = +BLEGATTSCHAR:"desc",1,7,1,0x2902
USART4 RX = +BLEGATTSCHAR:"char",1,8,0xC307,0x02
USART4 RX = +BLEGATTSCHAR:"desc",1,8,1,0x2901
USART4 RX = +BLEGATTSCHAR:"char",2,1,0xC400,0x02
USART4 RX = +BLEGATTSCHAR:"desc",2,1,1,0x2901
USART4 RX = +BLEGATTSCHAR:"char",2,2,0xC401,0x02
USART4 RX = +BLEGATTSCHAR:"desc",2,2,1,0x2901
USART4 RX =
USART4 RX = OK
After this I am triggering for connection from my mobile and this is what I receive.
USART4 RX = +BLECONN:0,"6d:67:23:33:0b:c4"
BLE connected
USART4 RX = +BLEDISCONN:0,"6d:67:23:33:0b:c4"
It disconnects in a second. As I get the disconnected message, the BLE is no longer discoverable. I am not triggering any disconnection from my end. Kindly help me resolve this issue.
USART4 RX =
USART4 RX = OK
USART4 RX = AT+BLEGATTSSRVCRE
USART4 RX =
USART4 RX = OK
USART4 RX = AT+BLEGATTSSRVSTART
USART4 RX =
USART4 RX = OK
USART4 RX = AT+BLEADDR?
USART4 RX = +BLEADDR:"34:b4:72:b2:68:52"
USART4 RX = OK
USART4 RX = AT+BLEADVDATA="0201060A09457370726573736966030302A0"
USART4 RX =
USART4 RX = OK
USART4 RX = AT+BLEADVSTART
USART4 RX =
USART4 RX = OK
USART4 RX = AT+BLEGATTSSRV?
USART4 RX = +BLEGATTSSRV:1,1,0xA002,1
USART4 RX = +BLEGATTSSRV:2,1,0xA003,1
USART4 RX =
USART4 RX = OK
USART4 RX = AT+BLEGATTSCHAR?
USART4 RX = +BLEGATTSCHAR:"char",1,1,0xC300,0x02
USART4 RX = +BLEGATTSCHAR:"desc",1,1,1,0x2901
USART4 RX = +BLEGATTSCHAR:"char",1,2,0xC301,0x02
USART4 RX = +BLEGATTSCHAR:"desc",1,2,1,0x2901
USART4 RX = +BLEGATTSCHAR:"char",1,3,0xC302,0x08
USART4 RX = +BLEGATTSCHAR:"desc",1,3,1,0x2901
USART4 RX = +BLEGATTSCHAR:"char",1,4,0xC303,0x04
USART4 RX = +BLEGATTSCHAR:"desc",1,4,1,0x2901
USART4 RX = +BLEGATTSCHAR:"char",1,5,0xC304,0x08
USART4 RX = +BLEGATTSCHAR:"char",1,6,0xC305,0x10
USART4 RX = +BLEGATTSCHAR:"desc",1,6,1,0x2902
USART4 RX = +BLEGATTSCHAR:"char",1,7,0xC306,0x20
USART4 RX = +BLEGATTSCHAR:"desc",1,7,1,0x2902
USART4 RX = +BLEGATTSCHAR:"char",1,8,0xC307,0x02
USART4 RX = +BLEGATTSCHAR:"desc",1,8,1,0x2901
USART4 RX = +BLEGATTSCHAR:"char",2,1,0xC400,0x02
USART4 RX = +BLEGATTSCHAR:"desc",2,1,1,0x2901
USART4 RX = +BLEGATTSCHAR:"char",2,2,0xC401,0x02
USART4 RX = +BLEGATTSCHAR:"desc",2,2,1,0x2901
USART4 RX =
USART4 RX = OK
After this I am triggering for connection from my mobile and this is what I receive.
USART4 RX = +BLECONN:0,"6d:67:23:33:0b:c4"
BLE connected
USART4 RX = +BLEDISCONN:0,"6d:67:23:33:0b:c4"
It disconnects in a second. As I get the disconnected message, the BLE is no longer discoverable. I am not triggering any disconnection from my end. Kindly help me resolve this issue.
Re: Issue with pairing the BLE with my mobile phone
Can you provide ESP-AT version information (query with at + GMR command)? You can test it with another mobile phone to see if there are the same issue.
Re: Issue with pairing the BLE with my mobile phone
USART4 RX = AT+GMR
USART4 RX = AT version:2.3.0.0(e98993f - ESP32C3 - Dec 23 2021 09:03:35)
USART4 RX = SDK version:v4.3.1-354-g98d34e5
USART4 RX = compile time(9ff1373):Dec 24 2021 11:22:05
USART4 RX = Bin version:2.3.0(MINI-1)
This is what I receive from the module.
USART4 RX = AT version:2.3.0.0(e98993f - ESP32C3 - Dec 23 2021 09:03:35)
USART4 RX = SDK version:v4.3.1-354-g98d34e5
USART4 RX = compile time(9ff1373):Dec 24 2021 11:22:05
USART4 RX = Bin version:2.3.0(MINI-1)
This is what I receive from the module.
Re: Issue with pairing the BLE with my mobile phone
Sometimes, I am able to connect and send data over SPP but sometimes it gets disconnected. It's not stable, does the RF power values have anything to do with them?
Is there a ideal value to set for RF power?
Is there a ideal value to set for RF power?
Re: Issue with pairing the BLE with my mobile phone
How long will disconnection occur after connecting the device? If possible, you can provide logs. Try a higher RF setting, but the higher the RF setting, the higher the power consumption. You can capture packets to see who disconnected first.
Re: Issue with pairing the BLE with my mobile phone
The disconnection happens in 5 seconds after connecting, I have an ESP32C3 client configured, I am trying to connect it to my ESP32C3 server which is located on my board. How to capture packets to see who disconnected first?
To me it looks like the server & client both are initiating the disconnection.
This is my query log for AT+BLEADVPARAM?
UART4 RX = +BLEADVPARAM:32,64,0,0,7,0,0,"00:00:00:00:00:00"
UART4 RX = OK
What should be these values? Does these values create any issues?
To me it looks like the server & client both are initiating the disconnection.
This is my query log for AT+BLEADVPARAM?
UART4 RX = +BLEADVPARAM:32,64,0,0,7,0,0,"00:00:00:00:00:00"
UART4 RX = OK
What should be these values? Does these values create any issues?
Re: Issue with pairing the BLE with my mobile phone
You can use the AT master branch to test if it will also disconnects.
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