Using RP2040 microcontroller chip independently designed by Raspberry Pi<br> Equipped with dual-core ARM Cortex MO+ processor, running frequency up to 133MHz flexible clock.<br> Adopt Infineon's CYW43439 wireless chip, support 2.4/5 GHz band Wi-Fi 4 wireless network.<br> Built-in 264KB SRAM and 2MB on-chip Flash<br> Stamp hole design, which can be directly welded and integrated into the bottom plate designed by the user<br> Drag-and-drop program download via USB recognition as mass storage<br> Up to 26 multi-function GPIO pins<br> 2 SPI, 2 I2C, 2 UART, 3 12-bit ADC, 16 controllable PWM channels<br> Accurate on-chip clocks and timers<br> Temperature Sensor<br> On-chip accelerated floating-point library<br> 8 programmable I/O (PIO) state machines for custom peripheral support<br> Color: green<br> Material: PCB<br> Package Contents:<br> 1 x Development Board(Welded)<br> Only the above package content, other products are not included.<br> Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.