As with other home lab experiments, there are tons of methods to convert an ESP32 into a Bluetooth Proxy. Since I want to use it with my Home Assistant server, I used the ESPHome add-on method.

The ubiquitous ESP32 microchip made by Chinese manufacturer Espressif and used by over 1 billion units as of 2023 contains undocumented commands that could be leveraged for attacks.

The vulnerability description is as follows: Espressif ESP32 ICs contain 29 hidden Bluetooth HCl commands, such as "0xFC02" – "Write memory" (CVE-2025-27840, CVSS 6.8, risk "medium ").

While the ESP32-P4 itself doesn’t support WiFi and Bluetooth, there’s also an ESP32-C6-Mini-1 chip that handles those features. Ports and connectors include: 1 x 10/100 Ethernet (with PoE ...

In addition to Bluetooth 5 (LE), it also supports short-range wireless communication standards such as Thread and ZigBee . Software for the ESP32-C5 can be developed using the Espressif Systems ...

The new ESP32 combo chip integrates robust wireless interfaces for 802.11b/g/n Wi-Fi and CEVA's Bluetooth 4.2 dual mode, along with a rich GPIO offering for system flexibility. Designed for ultra-low ...

Arduino has introduced a Nano shaped board with a Wi-Fi and Bluetooth LE capable Espressif’s ESP32-S3 microcontroller, supporting it with the Arduino IDE and MicroPython. “Beginners can explore in an ...