The Raspberry Pi Project has announced the availability of the RP2040 microcontrollers designed for the Raspberry Pi Pico board and also used in new products from Adafruit, Arduino, Sparkfun and Pimoroni. The cost of the chip is 1 US dollar. The RP2040 microcontroller includes a dual-core ARM Cortex-M0+ (133MHz) processor with 264 KB of internal RAM, temperature sensor, USB 1.1, DMA, UART, SPI and I2C controllers.
Applications can be created using C, C++, or MicroPython. The MicroPython port for RP2040 was prepared jointly with the author of the project and supports all the features of the chip, including its own interface for connecting PIO extensions. For development for the RP2040 chip using MicroPython, the Thonny integrated programming environment has been adapted. The capabilities of the chip are enough to run applications for solving machine learning problems, for the development of which a port of the TensorFlow Lite framework has been prepared. Run on FreeRTOS chip is supported.
Source: opennet.ru