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. specification:Item Type: Micro Controller Mini Development Board Material: PCB Interfaces: 2 x SPI, 2 x I2C, 2 x UART, 3 x 12 Bit ADC, 16 x Controllable PWM Channels Processor: Dual Core ARM Cortex M0+ PackageList:1 x Microcontroller