To be able to interface the ENGL Midi Footswitch we used the next steps :
2.1 Get the Bluetooth Arduino adaptor interface from model-e-shop.be
2.3. We programmed the Arduino board and share it with you. Download the midi arduino sketch here. Adapt to your needs and ask info@rickybrat for help if needed.
2.2 Get the Arduino Uno Midi adaptor interface from Aliexpress
2.4. Plug the HC-05 Modules that were delivered in 2.1