Pimoroni Tiny2040

The Tiny2040 is a general purpose RP2040 board supplied by Pimoroni.

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Features

  • RP2040 microcontroller chip

  • Dual-core ARM Cortex M0+ processor, flexible clock running up to 133 MHz

  • 264kB of SRAM, and 2MB or 8MB of on-board Flash memory

  • Castellated module allows soldering direct to carrier boards

  • USB Host and Device support via type C connector

  • Low-power sleep and dormant modes

  • Drag & drop programming using mass storage over USB

  • 12 multi-function GPIO pins

  • 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 IO (PIO) state machines for custom peripheral support

Serial Console

By default a serial console appears on pins 15 (RX GPIO0) and pin 16 (TX GPIO1). This console runs a 115200-8N1.

The board can be configured to use the USB connection as the serial console.

Buttons and LEDs

There is a single onboard RGB LED controlled by pins GPIO18 (red), GPIO19 (green), and GPIO20 (blue).

The is a User/BOOT button readable as GPIO23. If held down when power is first applied the RP2040 will boot into program mode and appear to a computer connected via USB as a storage device. Saving a .UF2 file to this device will replace the Flash ROM contents on the RP2040.

Pin Mapping

Pads numbered anticlockwise from USB connector.

Pad

Signal

Notes

1

VBUS

Connected to USB +5V

2

Ground

3

3V3

Out to peripherals

4

GPIO29

ADC3

5

GPIO28

ADC2

6

GPIO27

ADC1

7

GPIO26

ADC0

8

Ground

9

GPIO7

10

GPIO6

11

GPIO5

12

GPIO4

13

GPIO3

14

GPIO2

15

GPIO1

Default RX for UART0 serial console

16

GPIO0

Default TX for UART0 serial console

Power Supply

The Raspberry Pi Pico can be powered via the USB connector, or by supplying +5V to pin 1.

The Raspberry Pi Pico chip run on 3.3 volts. This is supplied by an onboard voltage regulator.

Configurations

composite

NuttShell configuration (console enabled in UART0, at 115200 bps) with support for CDC/ACM with MSC USB composite driver.

gpio

NuttShell configuration (console enabled in UART0, at 115200 bps) with GPIO examples.

nsh

Basic NuttShell configuration (console enabled in UART0, at 115200 bps).

nsh-flash

Basic NuttShell configuration (console enabled in UART0, at 115200 bps with SMART flash filesystem.

nshsram

NuttShell configuration (console enabled in UART0, at 115200 bps) with interrupt vectors in RAM.

smp

Basic NuttShell configuration (console enabled in UART0, at 115200 bps) with both ARM cores enabled.

spisd

NuttShell configuration (console enabled in UART0, at 115200 bps) with SPI configured.

usbmsc

NuttShell configuration (console enabled in UART0, at 115200 bps) with support for usbmsc.

usbnsh

Basic NuttShell configuration (console enabled in USB Port, at 115200 bps).