Features: 1¡¢26 GPIO Pins: Drag and drop program download for mass storage via USB recognition, up to 26 multifunctional GPIO pins, multiple hardware peripherals accurate on chip clock and timer. 2¡¢8 Programmable I/O: Temperature sensor, on chip accelerated floating point library, 8 programmable I/O (PIO) state machines for custom peripheral support. 3¡¢Stamp Hole Design: Can be directly soldered and integrated into user designed backplanes, supports USB1.1 host and slave devices, and supports low power sleep and hibernation modes. 4¡¢RP2040 Chip: Adopts the high performance RP2040 microcontroller chip, which is designed by for Raspberry Pi itself. 5¡¢Dual Core ARM Cortex M0+: Equipped with a dual core ARM Cortex M0+ processor running at up to 133MHz flexible clock, 264KB of SRAM and 4MB of on chip Flash on board. Package included: 1 x Microcontroller