Jun 2026

• RP2040 microcontroller chip officially designed by Raspberry Pi
• Dual-core ARM Cortex M0+ processor, flexible clock running up to 133 MHz
• Built-in 264KB SRAM and 2MB Flash
• Type-C connector, keeps it up to date, easier to use
• Castellated module allows soldering directly to carrier boards
• USB1.1 host and device support
• Low-power sleep and dormant modes
• Drag-and-drop programming using mass storage over USB
• 29 GPIO pins of RP2040 (20 can be led out through pin headers, the rest can be led out only by soldering)

        SPI × 2
        I2C × 2
        UART × 2
        12-bit ADC × 4
        Controllable PWM channel × 16

• Accurate clock and timer on-chip
• Temperature sensor
• On-chip accelerated floating-point library
• 8 × Programmable I/O (PIO) state machines for custom peripheral support

Checkout the Waveshare RP2040 Zero Wiki here.