Cytron Maker Nano RP2040

Board Overview

Cytron Maker Nano RP2040

Name:

maker_nano_rp2040

Vendor:

Cytron Technologies

Architecture:

arm

SoC:

rp2040

Browse board sources

Overview

The Cytron Maker Nano RP2040 [1] board is based on the RP2040 microcontroller from Raspberry Pi Ltd. The board has an Arduino Nano header, Maker/Qwiic/Stemma QT connectors and a mikro USB connector.

Hardware

• Microcontroller Raspberry Pi RP2040, with a max frequency of 133 MHz

• Dual ARM Cortex M0+ cores

• 264 kByte SRAM

• 2 Mbyte QSPI flash

• 20 GPIO pins

• 2 ADC pins

• I2C

• SPI

• UART

• Mikro USB connector

• Reset, boot and user buttons

• 2 RGB LEDs (Neopixels)

• Piezo buzzer with mute switch

• Maker/Qwiic/Stemma QT/zephyr_i2c connectors

• Status indicators for digital pins

Default Zephyr Peripheral Mapping

Label	Pin	Default pin mux	Notes
RGB LEDs	GPIO11	PIO0
User button	GPIO20		Alias sw0
Buzzer	GPIO22	PWM3A	Zephyr PWM name 6

Arduino Nano header:

Label	Pin	Default pin mux	Also in connector
0	GPIO0	UART0 TX	Maker port 0
1	GPIO1	UART0 RX	Maker port 0
RS	Reset
G	GND
2	GPIO2		(Alias led0)
3	GPIO3
4	GPIO4
5	GPIO5
6	GPIO6
7	GPIO7
8	GPIO8
9	GPIO9
17	GPIO17	SPI0 CS
19	GPIO19	SPI0 MOSI
16	GPIO16	SPI0 MISO
18	GPIO18	SPI0 SCK
3V3	3.3 V
NC
26	GPIO26	I2C1 SDA	Maker port 1
27	GPIO27	I2C1 SCL	Maker port 1
28	GPIO28	ADC2
29	GPIO29	ADC3
12	GPIO12	I2C0 SDA
13	GPIO13	I2C0 SCL
14	GPIO14
15	GPIO15
5V	5 V
RS	Reset
G	GND
VIN	Vin

Maker port 0 (pins also available in the Arduino Nano header):

Pin	Default pin mux
GPIO0	UART0 TX
GPIO1	UART0 RX

Maker port 1, also known as Qwiic/Stemma QT/zephyr_i2c. Pins also available in the Arduino Nano header:

Pin	Default pin mux
GPIO26	I2C1 SDA
GPIO27	I2C1 SCL

See also pinout [2].

Supported Features

The maker_nano_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.

maker_nano_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 clock112	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
	on-chip	Raspberry Pi Pico GPIO Port1	raspberrypi,pico-gpio-port
	on-board	GPIO pins exposed on Arduino Nano headers1	arduino-nano-header
	on-board	STEMMA QT is a 4-pin JST-SH connector for I2C devices1	stemma-qt-connector
I2C	on-chip	Raspberry Pi Pico I2C2	raspberrypi,pico-i2c
Input	on-board	Group of GPIO-bound input keys1	gpio-keys
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
LED strip	on-board	The pio node configured for ws28121	worldsemi,ws2812-rpi_pico-pio
Miscellaneous	on-chip	Raspberry Pi Pico PIO11	raspberrypi,pico-pio
MTD	on-chip	Flash node1	soc-nv-flash
	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 UART11	raspberrypi,pico-uart
SPI	on-chip	Raspberry Pi Pico SPI11	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 maker_nano_rp2040 board supports the runners and associated west commands listed below.

	flash	debug
uf2	✅ (default)

The Maker Nano 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 LED strip sample:

# From the root of the zephyr repository
west build -b maker_nano_rp2040 samples/drivers/led/led_strip/
west flash

Try also the Hello World, Blinky, Button, Input dump and Analog-to-Digital Converter (ADC) with devicetree samples.

The use of the Maker Port 1/Qwiic/Stemma QT I2C connector is demonstrated using the Generic Light Sensor Polling sample and a separate shield:

# From the root of the zephyr repository
west build -b maker_nano_rp2040 --shield adafruit_veml7700 samples/sensor/light_polling
west flash

Use the shell to control the GPIO pins:

# From the root of the zephyr repository
west build -b maker_nano_rp2040 samples/sensor/sensor_shell -- -DCONFIG_GPIO=y -DCONFIG_GPIO_SHELL=y
west flash

To set one of the GPIO pins high, use these commands in the shell, and study the indicator LEDs:

gpio conf gpio0 2 o
gpio set gpio0 2 1

Turn on the buzzer switch on the short side of the board. Then build using the same command as above for the sensor_shell. Use these shell commands to turn on and off the buzzer:

pwm usec pwm@40050000 6 1000 500
pwm usec pwm@40050000 6 1000 0

References

[1]

https://www.cytron.io/c-maker-series/p-maker-nano-rp2040-simplifying-projects-with-raspberry-pi-rp2040

[2]

https://docs.google.com/drawings/d/e/2PACX-1vSGwfh_1ac_UFXT4F72D0yJHaYHjDC-lfeBMLp0dc8ry57sAYtdobIFBZqrfXE6AuDTYEY9Cicto2b8/pub?w=3373&h=2867