The RP2040 microcontroller chip is designed by for Raspberry Pi. It is powered by a dual-core ARM Cortex 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 host and device support. Supports low power sleep and hibernation modes. Can be identified by USB as mass storage for support type download program. 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 ADC, 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 picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.