The question is what should you compare this to; is it more an ESP32 or an ESP8266? The new “C3” variant has a single 160 MHz RISC-V core that out-performs the ESP8266, and at the same time ...
After flashing the firmware to the ESP8266 board, the GDB server can be ... or just roll your own from any STM32 board that you’ve got kicking around.