Need to transfer data from i.MX 8M Mini EVKB to ESP32 module via bluetooth

[subhash_ponnusamy]

Hi NXP,

I'm working in a project where I need to send the sensor data from i.MX 8M Mini EVKB to ESP32 module. I enabled Bluetooth in IMX8 and can able to connect it with my mobile. But when I try to connect it to ESP32 it shows error like this in linux terminal.

Attempting to connect to 7C:9E:BD:35:F2:7A 

[CHG] Device 7C:9E:BD:35:F2:7A Connected: yes 

[CHG] Device 7C:9E:BD:35:F2:7A ServicesResolved: yes 

Failed to connect: org.bluez.Error.NotAvailable 

[CHG] Device 7C:9E:BD:35:F2:7A ServicesResolved: no 

[CHG] Device 7C:9E:BD:35:F2:7A Connected: no

 I can able to pair and trust my ESP32 but can't able to establish a connection in between them.

So, can you guys please help me how to connect and exchange the data between imx8 and ESP32

note: I need to implement in my project ASAP.

[igorpadykov]

Hi Subhash

for i.MX8M Mini EVK bluetooth enablement (88W8987) one can look at UM11483, UM11490

Getting Started with NXP-based Wireless Modules on i.MX 8M Quad EVK Running Linux OS - User manual (...

Feature Configuration Guide for NXP-based Wireless Modules on i.MX 8M Quad EVK - User manual (public...

and other documentation on link

https://www.nxp.com/products/wireless/wi-fi-plus-bluetooth/88w8987-2-4-5-ghz-dual-band-1x1-wi-fi-5-8...

Best regards
igor

[subhash_ponnusamy]

Hi Igor,

Thanks for the response. I already referred these documents and followed the procedures. But I can't able to connect it with ESP32 module. Is there any specific packages for ES32 module like pulseaudio and bluetooth-player.

ESP32 does not a support A2DP source profile feature. It's just receive 8bit data from IMX8 via bluetooth and display it in serial terminal.

Regards,

Subhash