Thank you for your reply. I am familiar with bluetooth Erel's chat example and I thought that can be used for communicating with OBD dongle.It works if you implement the communication correctly.
I can't share any code (it's the result of a teamwork) but you can see the complete app written in b4a here (100K+ download):
https://play.google.com/store/apps/details?id=priusfan.info.bthsd10
and here for tire pressure (only some Toyota cars):
https://play.google.com/store/apps/details?id=com.hybridassistant.tire
I downloaded both apps, they are perfect when tested in my friend's workshopIt works if you implement the communication correctly.
I can't share any code (it's the result of a teamwork) but you can see the complete app written in b4a here (100K+ download):
https://play.google.com/store/apps/details?id=priusfan.info.bthsd10
and here for tire pressure (only some Toyota cars):
https://play.google.com/store/apps/details?id=com.hybridassistant.tire