Have all of the firmwares we offer preconfigured, with an SD card included for memory functions some may use!

Preloaded Firmware on SD Card:

• Marauder

• GhostESP

• Bruce

• NerdMiner (upgraded 350kh/s version)

Perfect for hobbyists, developers, security research enthusiasts, and Bitcoin miners who want an easy way to switch between multiple ESP32 firmware environments using the built-in Launcher interface.

The SD card is properly formatted and organized for easy firmware selection directly from the touchscreen.

When you power on the device, the Launcher boot screen will appear.

⭐️Important Boot Behavior

Each time the device powers on:

If you do not press the main screen while it is loading, the board will automatically boot into the most recently installed firmware.

If you want to choose or change firmware, you must tap the screen while the Launcher is loading.⭐️

Switching Between Firmwares

1. Power on the device with included USBC

2. Tap the touchscreen during the Launcher loading screen.

3. This will open the Launcher menu.

4. Select SD Card from the menu.

5. Browse the list of firmware files stored on the SD card.

6. Tap the firmware you want to install.

7. Confirm installation.

8. The device will flash the selected firmware and reboot into it.

To switch again later, simply repeat the process and install a different firmware from the SD card. The newly installed firmware becomes the default firmware that will auto-load on future boots unless you interrupt the boot screen.

What You Receive

• ESP32 touchscreen board

• 4GB SD card preloaded with 4 firmware options

• Device tested and ready to power via USB

Notes

Firmware files are preloaded.

No additional software is required.

Nerdminer requires another device for configuration, smart phone or any PC works.

Nerdminer also requires having a valid mining address (avoid using exchanges, and the address MUST begin with 1, bc1q, or 3. Other formats do not work for mining)

Feel free to message with any questions before purchasing.