I’m building a DIY OBD2 reader/LCD display unit with HC-05 Bluetooth module, using ELM327 OBD2 module.
I have 2 ELM327 units, the 00:1D.A5:68:98:8B abd …8C addresses. I cunfigured HC-05 via instructions of this homepage: Arduino OBD2 ELM327 I2C-LCD HC05 Bluetooth : 4 Steps - Instructables
The set up was successfull, I can use …8B ELM327 module with my Arduino unit; BUT if I connect to the car the …8C ELM327, the Arduino unit doesn’t recognizes it, because of I set up byTerminal BT address as …8B.
Can You recommend me a small routine, which I can write to my sketch, and the unit can pair itself with the ELM327 every times of startup?
ladajpg.c (56.2 KB)
MEGA2560-HC05_ELM327_0011.ino (10.3 KB)