Adafruit ItsyBitsy RP2040 Cortex M0+ 8MB FLASH 264KB SRAM Board

Adafruit ItsyBitsy RP2040 featuring the Raspberry Pi RP2040. This Itsy' features the RP2040 with all features of the ItsyBitsy family. It's small, powerful, with a ultra fast dual Cortex M0+ processor running at 125 MHz with 8 MB of FLASH and 264KB of SRAM. ItsyBitsy RP2040 is only 1.4" long by 0.7" wide, but has 6 power pins, 23 digital GPIO pins (4 of which can be analog in and 16 x PWM out). It's the same chip as the Feather RP2040 and Raspberry Pi Pico but really really small.

• Measures 1.4" x 0.7" x 0.2" (36mm x 18mm x 4mm) without headers soldered in
• RP2040 32-bit Cortex M0+ dual core running at ~125 MHz @ 3.3V logic and power
• 264 KB RAM
• 8 MB SPI FLASH chip for storing files and CircuitPython/MicroPython code storage. No EEPROM
• Tons of GPIO! 23 x GPIO pins with following capabilities:

  • Four 12 bit ADCs (one more than Pico)
  • Two I2C, Two SPI and two UART peripherals, we label one for the 'main' interface in standard ItsyBitsy locations
  • 16 x PWM outputs - for servos, LEDs, etc
  • The 10 digital 'non-ADC/non-peripheral' GPIO are consecutive for maximum PIO compatibility
• Pin #11 red LED for general purpose blinking
• RGB NeoPixel with power pin on GPIO so you can depower it for low power usages.
• Both Reset button and Bootloader select button for quick restarts (no unplugging-replugging to relaunch code)
• 3.3V regulator with 500mA peak current output
• 3.3V Power/enable pin
• Power with either USB or external output (such as a battery) - it'll automatically switch over
• Broken-out SWD pins for debug access
• 12 MHz crystal for perfect timing.
• Special Vhigh output pin gives you the higher voltage from VBAT or VUSB, for driving NeoPixels, servos, and other 5V-logic devices. Digital 5 level-shifted output for high-voltage logic level output.
• USB Micro B connector lets you access built-in ROM USB bootloader and serial port debugging

• Dual ARM Cortex-M0+ @ 133MHz
• 264kB on-chip SRAM in six independent banks
• Support for up to 16MB of off-chip Flash memory via dedicated QSPI bus
• DMA controller
• Fully-connected AHB crossbar
• Interpolator and integer divider peripherals
• On-chip programmable LDO to generate core voltage
• 2 on-chip PLLs to generate USB and core clocks
• 30 GPIO pins, 4 of which can be used as analog inputs
• Peripherals
  • 2 UARTs
  • 2 SPI controllers
  • 2 I2C controllers
  • 16 PWM channels
  • USB 1.1 controller and PHY, with host and device support
  • 8 PIO state machines

• RP2040 Datasheet
• Primary Guide: Adafruit ItsyBitsy RP2040
• An Introduction to RP2040 PIO with CircuitPython
• Program RP2040 in Arduino