Chrome / Edge / Opera only (Web Serial). Close Mellow's tool and any serial
monitor first — one program at a time can hold the port.
Hover a parameter name for what it does and its limits.
Motion
Speed is mm/s of filament, not motor r/min.
Auto retract / load
Double-tap KEY1 = full retract, KEY2 = full load.
Buffer
steps must match your mainboard's pulses per mm.
Derived (read-only)
Computed by the firmware from the values on the left.
I/O mapping
Pin names match Mellow's connector diagram. Hover one for
its MCU pin and connector. Drive a pin first to confirm wiring, then map
an event to it.
| # | Event | Pin | Mode | Polarity | Pulse ms |
|---|
Console
Flashing writes your board. This talks to the FlyBoot/Katapult bootloader
and replaces the application at
0x08002000; the bootloader itself is
not touched, so a bad image can always be re-flashed. If the board ever stops
enumerating entirely, hold BOOT, tap RESET, release — that forces
the ROM DFU bootloader.
Progress
- Connected on COM5 (application)
- Send
flyboot— board reboots into the bootloader - Connect to Katapult (different port, 250000 baud)
- Choose a .bin and write it
- Verify by reading every block back
- Complete — board restarts into the application
Firmware image
Drop a
.bin here, or click to chooseidle