K-Line ALDL Bluetooth adapter V1.0

The version described below is 1.0.
Previous version is 0.1
Next version is 2.0

Based on ATmega8 + Bluetooth HC-05
Designed for 5V K-Line 8192 baud

37x14mm



Download mega8_uart.hex

Apply hex:
sudo avrdude -c usbasp -p m8 -Uflash:w:mega8_uart.hex:a 

Set fuses (8Mhz internal):
sudo avrdude -c usbasp -p m8 -U lfuse:w:0xe4:m -U hfuse:w:0xd9:m

HC-05 conf:
AT+CLASS?
>1f00
AT+CLASS=1
>OK

Reference:
How to configure HC-05

GM12 OBD-1 pinout:

M - K-Line
A - GND
H,G - +12V