Only USBHost library is under GPL. Since the original USBHost is licensed under GPL, we are forced to release that part under GPL.
The remaining part of Arduino core is under the less restrictive LPGL.
C
Only USBHost library is under GPL. Since the original USBHost is licensed under GPL, we are forced to release that part under GPL.
The remaining part of Arduino core is under the less restrictive LPGL.
C