Check the listing for details. 3X Raspberry Pi Pico Microcontroller Development Board RP2040 with Pin Header. Condition: New. Listed at 19.99 USD. Features: RP2040 microcontroller chip designed by Raspberry Pi in the United Kingdom Dual-core Arm Cortex M0+ processor, flexible clock running up to 133 MHz 264KB of SRAM, and 2MB of on-board Flash memory Castellated module allows soldering direct to carrier boards USB 1.1 with device and host support Low-power sleep and dormant modes Drag-and-drop programming using mass storage over USB 26 × multi-function GPIO pins (3.3V ONLY) 2 × SPI, 2 × I2C, 2 × UART, 3 × 12-bit ADC, 16 × controllable PWM channels Accurate clock and timer on-chip Temperature sensor Accelerated floating-point libraries on-chip 8 × Programmable I/O (PIO) state machines for custom peripheral support Specification: 21mm x 51mm form factor RP2040 microcontroller chip designed by Raspberry pi in UK Dual-core Arm Cortex-M0+ Processor, flexible clock running tup to 133MHz 264KB on-chip SRAM 2MB on-board QSPI Flash 26 multifunction GPIO pins, including 3 analogue inputs 2 x UART, 2 x SPI controllers, 2 x I2C controllers, 16 x PWM channels 1 x USB 1.1 controller and PHY, with host and device support 8 x Programmable I/O (PIO) state machines for custom peripheral support Supported input power 1.8-5.5V DC Operating temperature -20℃ to +85℃ Castellated module allows soldering direct to carrier boards Drag-and-drop programming using mass storage over USB Low-power sleep and dormant modes Package Included: 3X Raspberry Pi Pico Microcontroller Development Board RP2040 dual-core processor 6X 20 Pin Header 3X 3 Pin Header