1. This is Original Raspberry Pi Pico with Pre-Soldered Header. RP2040 microcontroller chip designed by Raspberry Pi; 2. Raspberry Pi Pico is a low-cost, high-performance microcontroller board with flexible digital interfaces. It incorporates Raspberry Pi's own RP2040 microcontroller chip, with dual-core Arm Cortex M0+ processor running up to 133 MHz, embedded 264KB of SRAM and 2MB of on-board Flash memory, as well as 26x multi-function GPIO pins; 3. 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. 26x multi-function GPIO pins; 4. 2x SPI; 2x I2C; 2x UART; 3x 12-bit ADC; 16x Controllable PWM channels; Accurate clock and timer on-chip; Temperature Sensor; 5. Accelerated floating-point libraries on-chip. 8x Programmable I/O (PIO) state machines for custom peripheral support.