This is an example ionic2+ program that communicates with a TCP OBD device. Uses https://github.com/hsccorp/node-bluetooth-tcp-obd
git clone https://github.com/hsccorp/obd-tcp-test.git
cd obd-tcp-test
npm install -g ionic cordova
ionic cordova build ios -- --buildFlag="-UseModernBuildSystem=0"
ionic corodva build android