DFRobot Beetle RP2040

Overview

The DFRobot Beetle RP2040 [1] board is based on the RP2040 microcontroller from Raspberry Pi Ltd. The board has a USB type C connector, and uses a large pad design.

Hardware

Microcontroller Raspberry Pi RP2040, with a max frequency of 133 MHz
Dual ARM Cortex M0+ cores
264 kByte SRAM
28 Mbyte QSPI flash
6 GPIO pins
2 ADC pins
I2C
SPI
UART
USB type C connector
Reset and boot buttons
Blue LED

Default Zephyr Peripheral Mapping

GP0 : GPIO0
GP1 : GPIO1
GP2 : GPIO2
GP3 : GPIO3
GP4 UART1 TX : GPIO4
GP5 UART1 RX : GPIO5
GP28 ADC channel 2 : GPIO28
GP29 ADC channel 3 : GPIO29
Blue LED : GPIO13

Supported Features

The beetle_rp2040 board supports the hardware features listed below.

on-chip / on-board: Feature integrated in the SoC / present on the board.
2 / 2: Number of instances that are enabled / disabled.
Click on the label to see the first instance of this feature in the board/SoC DTS files.
vnd,foo: Compatible string for the Devicetree binding matching the feature.
Click on the link to view the binding documentation.

`beetle_rp2040/rp2040` target

Type	Location	Description	Compatible
CPU	on-chip	ARM Cortex-M0+ CPU2	`arm,cortex-m0+`
ADC	on-chip	Raspberry Pi Pico ADC1	`raspberrypi,pico-adc`
Clock control	on-chip	Raspberry Pi Pico clock controller node1	`raspberrypi,pico-clock-controller`
	on-chip	The representation of Raspberry Pi Pico’s clock11 2	`raspberrypi,pico-clock`
	on-chip	The representation of Raspberry Pi Pico’s PLL2	`raspberrypi,pico-pll`
	on-chip	The representation of Raspberry Pi Pico ring oscillator1	`raspberrypi,pico-rosc`
	on-chip	The representation of Raspberry Pi Pico external oscillator1	`raspberrypi,pico-xosc`
Counter	on-chip	Raspberry Pi Pico timer1	`raspberrypi,pico-timer`
DMA	on-chip	Raspberry Pi Pico DMA1	`raspberrypi,pico-dma`
Flash controller	on-chip	Raspberry Pi Pico flash controller1	`raspberrypi,pico-flash-controller`
GPIO & Headers	on-chip	Raspberry Pi Pico GPIO1	`raspberrypi,pico-gpio`
GPIO & Headers	on-chip	Raspberry Pi Pico GPIO Port1	`raspberrypi,pico-gpio-port`
I2C	on-chip	Raspberry Pi Pico I2C2	`raspberrypi,pico-i2c`
Interrupt controller	on-chip	ARMv6-M NVIC (Nested Vectored Interrupt Controller) controller1	`arm,v6m-nvic`
LED	on-board	Group of GPIO-controlled LEDs1	`gpio-leds`
Miscellaneous	on-chip	Raspberry Pi Pico PIO2	`raspberrypi,pico-pio`
MTD	on-chip	Flash node1	`soc-nv-flash`
MTD	on-board	Fixed partitions of a flash (or other non-volatile storage) memory1	`fixed-partitions`
Pin control	on-chip	Raspberry Pi Pico Pin Controller1	`raspberrypi,pico-pinctrl`
PWM	on-chip	Raspberry Pi Pico PWM1	`raspberrypi,pico-pwm`
Regulator	on-chip	Raspberry Pi Pico core supply regurator1	`raspberrypi,core-supply-regulator`
Reset controller	on-chip	Raspberry Pi Pico Reset Controller1	`raspberrypi,pico-reset`
RTC	on-chip	Raspberry Pi Pico RTC1	`raspberrypi,pico-rtc`
Sensors	on-chip	Raspberry Pi Pico family temperature sensor node1	`raspberrypi,pico-temp`
Serial controller	on-chip	Raspberry Pi Pico UART1 1	`raspberrypi,pico-uart`
SPI	on-chip	Raspberry Pi Pico SPI2	`raspberrypi,pico-spi`
SRAM	on-chip	Generic on-chip SRAM1	`mmio-sram`
Timer	on-chip	ARMv6-M System Tick1	`arm,armv6m-systick`
USB	on-chip	Raspberry Pi Pico USB Device Controller1	`raspberrypi,pico-usbd`
Watchdog	on-chip	Raspberry Pi Pico Watchdog1	`raspberrypi,pico-watchdog`

Programming and Debugging

The beetle_rp2040 board supports the runners and associated west commands listed below.

	flash	debug
uf2	✅ (default)

The DFRobot Beetle RP2040 board does not expose the SWDIO and SWCLK pins, so programming must be done via the USB port. Press and hold the BOOT button, and then press the RST button, and the device will appear as a USB mass storage unit. Building your application will result in a build/zephyr/zephyr.uf2 file. Drag and drop the file to the USB mass storage unit, and the board will be reprogrammed.

For more details on programming RP2040-based boards, see Programming and Debugging.

Flashing

To run the Blinky sample:

# From the root of the zephyr repository
west build -b beetle_rp2040 samples/basic/blinky/
west flash

Try also the Hello World, Console over USB CDC ACM and Analog-to-Digital Converter (ADC) with devicetree samples.