Use and Care Manual

15 / 20
5. Open the music app that accepts an external MIDI input and select
WIDI Uhost as the MIDI input device on the settings page, then you
can start using it.
⚫ USB soft thru: When using USB for MIDI, some MIDI instruments (such as
the Roland V-Accordion) can only function as a MIDI controller. in this
case, the routing from the keyboard to the internal sound module is
disconnected. MIDI messages can only be sent to the computer via USB.
If you want to use the keyboard to play the internal sound of the
instrument, you must send MIDI messages from the computer's DAW
software back to the instrument via USB. When you turn on the USB soft
thru, you no longer need to connect to the computer and the MIDI
messages you play will directly return to the internal sound module via
WIDI USB. The same messages are also sent to the external BLE MIDI
device via WIDI Bluetooth. Please use WIDI App to set the USB soft thru
switch.
⚫ Group connection with multiple WIDI devices via Bluetooth
WIDI Uhost supports group connection via Bluetooth from Bluetooth
firmware version v0.1.3.7 and higher. Group connections will allow two-way
data transmission of 1-to-4 MIDI split and 4-to-1 MIDI merge. And it supports
simultaneous use of multiple groups.
Video instruction: https://youtu.be/ButmNRj8Xls
1. Open the WIDI App.
（Version 1.4.0 or higher）