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