I was reading the blueboard website and saw this:
"So how does iRig BlueBoard work? It connects to your iPhone/iPod
touch/iPad or Mac via Bluetooth, and when you press its foot switches,
it sends out control signals that are converted to MIDI by the iRig Blueboard app."
I'm afraid that the key phrase here is: "converted to midi"
Looks like the blueboard itself doesn't send midi… Is that possible that you really need the app (running on iOS device) to first convert to midi and then, maybe, it is possible to send the converted midi to an outside device (H9)… ???