The RP2040 microcontroller chip is designed by for . It is powered by a dual-core ARM M0+ processor and runs at up to 133MHz flexible clock. It comes with 264KB of SRAM and 2MB of on-chip Flash. Real stamp hole design, can be directly welded into the self-designed base plate. USB1.1 and device support. Supports low power sleep and hibernation modes. Can be identified by USB as storage for support type download . 29 GPI0 pins of RP2040 (20 can be led by row pins, the rest can only be led by welding). 2 SPIs, 2 12Cs, 2 UART, 4 12-bit , 16 controllable PWM channels Accurate on-chip clock and timer. Temperature sensor. On-chip accelerated floating point library. Eight programmable I/0 (PI0) state machines for custom peripheral support. Colour:blue Material:PCB Size:23.5 x 18mm Package Contents: 5 x RP2040-Zero Development Board Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the a little different from the real thing. The measurement allowed error is +/- 1-3cm.