Hello guys my problem is i cant recieve any data from OBD II to Raspberry Pi 3B+
Here the materials that i use:
Raspberry pi 3B+
ELM327 -> OBD II Bluetooth Adapter
Operating System of Raspberry Pi -> https://medium.com/@aadeshshah/pre-installed-and-pre-configured-raspbian-with-opencv-4-1-0-for-raspberry-pi-3-model-b-b-9c307b9a993a
Here the following step that i do:
Step 1: From sudo nano /etc/systemd/system/dbus-org.bluez.service i add
ExecStart=/usr/lib/bluetooth/bluetoothd -C
ExecStartPost=/usr/bin/sdptool add SP
Step 2:Reload the configuration file and Restart the service
sudo systemctl daemon-reload
sudo systemctl restart bluetooth.service
Step 3:Pairing
bluetoothctl
power on
power on
agent on
default-agent
scan on
scan off
pair
trust
quit
Step 4: Stablish connection
sudo rfcomm connect rfcomm0
Waiting for connection on channel 1 Connection from XX:XX:XX:XX:XX:XX to /dev/rfcomm0 Press CTRL-C for hangup
It connect but when i run screen /dev/rfcomm0 it can't recieve any data and also when i use cat /dev/rfcomm0 no data posted
This are the tutorial that i use https://www.youtube.com/watch?v=DABytIdutKk i change bind to connect command and its work but when i run screen /dev/rfcomm0 i cant get any data
I use the command atz but its just hang up
