The newest ESP32 can run Linux and it's getting close to a Raspberry Pi
The latest version of Espressif’s ESP32 microcontroller series now supports a Linux kernel, enabling it to execute full operating system tasks previously limited to simpler firmware. With increased RAM and processing power, the chip narrows the performance gap with low‑cost single‑board computers such as the Raspberry Pi, expanding its use in IoT and hobbyist projects for developers.