Raspberry Pi Pico with Yellow Pre-Soldered Header. Based on RP2040 microcontroller chip, designed by Raspberry Pi in the United Kingdom.Dual-Core ARM Cortex M0+ Processor.
Dual-core Arm Cortex M0+ processor, flexible clock running up to 133 MHz. 264KB of SRAM, and 2MB of on-board Flash memory. Accelerated floating-point libraries on-chip.
8 × Programmable I/O (PIO) state machines for custom peripheral support. Castellated module allows soldering direct to carrier boards. USB 1.1 with device and host support. Low-power sleep and dormant modes. Drag-and-drop programming using mass storage over USB.
26 × multi-function GPIO pins. 2 × SPI, 2 × I2C, 2 × UART, 3 × 12-bit ADC, 16 × controllable PWM channels.Accurate clock and timer on-chip.Temperature sensor.
For software development, either Raspberry Pi's C/C++ SDK, or the MicroPython is available. There're also complete development resources and tutorials to help you get started easily, and integrate it into end products quickly.