Any alternative to Bluetooth?

[ksipp01]

I have been successfully controlling AutoScroll start/stop and manual scroll with a homemade footswitch using Arduino ESP-32 via keyboard commands over Bluetooth. It works great except there are some locations that I cannot for the life of me get Bluetooth to connect to my iPad.  It's seem like location dependent interface? Possibly other BT devices??  I'm pretty dependent on this so for a gig this is no good when it happens.   

Is there any alternative to BT such as direct control via TCP? 

Thanks in advance!

[arlo]

Most foot switches are really keyboards (a typing keyboard, not a piano keyboard) that send a limited number of key messages. Most commonly a keyboard connects by Bluetooth using the HID protocol, but it can also connect by USB. The PageFlip Firefly (2 buttons) and Dragonfly (4 buttons) can do both:

https://www.pageflip.com/products/firefly
https://www.pageflip.com/collections/pageflip-dragonfly

The other option is a foot switch that sends MIDI messages, and connects through a USB MIDI interface.

[ksipp01]

ok
I'll pursue migrating my arduino to direct via USB connection
thank you!