GBLink Unified Firmware

This firmware adds the capabilities of the GBLink Reconfigurable firmware to the Celio firmware to help users avoid needing to swap between firmware versions.

LED status indicators on supported hardware. (Pico Zero and Solderless boards)

Red Power — Device powered, no data connection
Green Connected — USB connected to host
Yellow GBA Mode — Game Boy Advance link active
Blue GB/GBC Mode — Game Boy or Game Boy Color link active
Purple Printer Mode — GB Printer emulation active