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smart 7688 Blue tooth links to bt-uart module.

img version :

0.94

kernel :

3.18.23

sw pkg :

lks7688.img, offical image
bt_uart_patch.tar, patch of bluez ipk

peripheral :

smart_7688 module
bluetooth USB dongle
HC-06 blue tooth UART moudule

PIC

Description

power on HC-06. plug in the bluetooth USB dongle.

flash smart_7688 module with offical image of lks7688.img auto reboot

copy patch to usb disk plug in the usb disk to smart_7688 module install ipk package of bluez ipk cd /tmp/run/mounted/sda1/bt_uart_patch ./gcat.23.sh sync reboot

Try to that smart_7688 module connects to HC-06. Basic way to check usb bt dongle hciconfig hci0: Type: BR/EDR Bus: USB
BD Address: 00:10:60:E3:BC:3D ACL MTU: 310:10 SCO MTU: 64:8
DOWN
RX bytes:494 acl:0 sco:0 events:21 errors:0
TX bytes:82 acl:0 sco:0 commands:20 errors:0

Try to link to HC-06 module. HC-06 is a bluetooth to UART module, into bluetoothctl dialog bluetoothctl

power on
	[CHG] Controller 00:15:83:0C:BF:EB Powered: yes

agent on
	Agent registered

scan on
	...
	#wait and until show below ...
	[CHG] Device 98:D3:31:B2:3B:EF Name: HC-06
	[CHG] Device 98:D3:31:B2:3B:EF Alias: HC-06

scan off

check that WMU6204-Bluetooth had found HC-06 devices ... Device 98:D3:31:B2:3B:EF HC-06

link HC-06 trust 98:D3:31:B2:3B:EF Changing 98:D3:31:B2:3B:EF trust succeeded

pair 98:D3:31:B2:3B:EF
#wait and until show below ...
Request PIN code
[agent] Enter PIN code:
1234

exit bluetoothctl dialog exit

create bt-uart device node rfcomm bind 0 98:D3:31:B2:3B:EF

check device node ls -l /dev/rfcomm0 crw-r--r-- 1 root root 216, 0 Sep 27 09:54 /dev/rfcomm0

test HC-06 bt-uart picocom -b 115200 /dev/rfcomm0

# HC-06 LED turn on instead of blinking
# Shorted HC-06 TX and RX
# HC-06 echo what you type in.
# exit picocom : [ctrl]+[a] + [ctrl]+[x]