Dual Core Programming for the Raspberry Pi Pico, ESP32, and ESP32-S3 Using the Arduino IDE

The RP2040 (found in the Raspberry Pi Pico), the ESP32, and the ESP32-S3 are all dual-core microcontrollers, with two CPU cores. All three can be programmed using the Arduino IDE. Here is a look at how to program both cores on those chips using the Arduino IDE, including a unified sketch that will work on RP2040 based boards and on ESP32/ESP32-S3 boards.
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