Firmware Downloads

Pre-compiled firmware and bootloaders for OpenELAB boards. Firmware files are linked from each product page.

How to Flash

See How to Flash Firmware for step-by-step instructions covering ESP32, Arduino, RP2040, and nRF52.

Bootloaders

• ESP32 ROM bootloader (built-in, no tool needed)
• STM32 USB DFU bootloader
• RP2040 UF2 bootloader (drag-and-drop)

Tools

• esptool — ESP32
• stm32flash — STM32
• picotool — RP2040