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24 EXPANDER
Geo edited this page Mar 10, 2026
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The EXPANDER mode allows the Bus Pirate to communicate with an external ESP32 Bus Expander device.
The expander acts as a radio coprocessor, extending the capabilities of the main Bus Pirate firmware, notably by adding 5 GHz Wi-Fi support.
The firmware for the expander is developed in a separate repository.
⚠️ Voltage Warning: Devices should only operate at 3.3V or 5V.
Do not connect peripherals using other voltage levels — doing so may damage your ESP32.