-
Notifications
You must be signed in to change notification settings - Fork 260
24 EXPANDER
Geo edited this page Mar 12, 2026
·
10 revisions
https://github.com/geo-tp/ESP32-Bus-Expander
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.
Use the ESP32 Bus Pirate WebFlasher and select ESP32 Bus Expander (ESP32-C5, at least 4MB flash, no PSRAM needed).
Once it's done, you can connect the ESP32 Bus Expander (RX9/TX10) to the ESP32 Bus Pirate.
⚠️ 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.