RP2040 microcontroller chip designed independently by for Raspberry Pi Dual core ARM Cortex processor with a flexible clock running at frequencies up to 133MHz Built in 264KB SRAM and 16MB chip with Flash On board DVI interface, capable of driving the vast majority of HDMI screens (requires compatibility with DVI interface) On board PIO-USB interface, which can serve as a USB host and slave On board Micro SD card holder, readable and writable Micro SD card Onboard lithium battery charging and discharging interface, which is beneficial for use in mobile scenarios USB 1.1 Host and Device Support It can be recognized as mass storage through USB for drag and drop download programs Supports low-power sleep and sleep modes 2 SPI, 2 I2C, 2 UART, 4 12-bit ADC, and 16 controllable PWM channels Accurate on-chip clock and timer temperature sensor On chip accelerated floating-point library 8 programmable I/O (PIO) state machines for custom peripheral support Packaging includes 1 * Development board