RP2040 microcontroller chip designed by Raspberry Pi in the United Kingdom provides a compact, high‑performance platform for embedded projects. - CPU and performance: Dual-core Arm Cortex‑M0+ processor, up to 133 MHz. - Memory: 264 KB SRAM and 2 MB on‑board flash memory. - USB and programming: USB‑C connector for easy updates and use; USB 1.1 with device and host support; drag‑and‑drop programming via mass storage. - Module design: Castellated module allows direct soldering to carrier boards. - Power management: Low‑power sleep and dormant modes for battery‑friendly operation. - I/O and peripherals: 29 multi‑function GPIO pins (20 on edge pinout, others via solder points); 2 × SPI, 2 × I2C, 2 × UART; 4 × 12‑bit ADC; 16 × controllable PWM channels. Use scenarios - IoT sensor hub or standalone data logger that can be programmed with simple mass‑storage drag‑and‑drop, then run on battery or USB power. - Small robot or motion controller requiring multiple interfaces (PWM, ADC, serial) and fast control loops. - Rapid prototyping board for applications needing flexible I/O and easy USB programming without specialized tools.