Utilizes the RP2040 microcontroller chip independently designed by Raspberry Pi. Equipped with a dual-core ARM Cortex MO+ processor, running at a flexible clock frequency up to 133MHz. Uses Raspberry Pi's CYW43439 wireless chip, supporting 2.4/5 GHz band Wi-Fi 4 wireless networking. On-board 264KB SRAM and 2MB on-chip Flash. Features a stamp hole design, allowing direct soldering and integration into user-designed baseboards. Drag-and-drop program download via USB mass storage recognition. Up to 26 multifunctional GPIO pins. Includes 2 SPI, 2 I2C, 2 UART, 3 12-bit ADCs, 16 controllable PWM channels. On-chip clock and timers. Temperature sensor. On-chip accelerated floating-point libraries. 8 programmable I/O (PIO) state machines for custom peripheral support. Color: Green Material: PCB Package Contents: 1 x Development Board (Not Soldered) Only the above package contents are included. Note: Light reflection and different displays may cause the color of the item in the picture to differ slightly from the real item. The allowable measurement error is +/- 1-3 cm.