Piglet Web Flasher official

Flash Piglet firmware over USB — no IDE, no toolchain

Before you start

Chrome or Edge (desktop) Data USB cable Plugged in directly, no hub No port? install CP210x / CH343 driver

Flashing a whole batch? Flash several boards at once →

Flash a board

Release notes
Loading…
Download .bin
C5 note — flash from a terminal if the browser still fails 
# Install already drives the ESP32-C5's ROM bootloader directly
# (--no-stub mode) for reliability, with up to 3 automatic retries.
# If it still fails, flash with esptool instead:
esptool --chip esp32c5 --no-stub \
  write-flash 0x0 Piglet.ino.merged.bin

If a later Arduino IDE/esptool upload fails to connect, hold BOOT, tap RESET, release BOOT, then try again.

Installing…
Ready
✓

Flash complete.

Unplug the Piglet from USB, then plug it back in (or power-cycle it) to boot the new firmware.