Introduction to Raspberry Pi Pico W¶
Raspberry Pi Pico W brings wireless connectivity to the best-selling Raspberry Pi Pico product line. Built around our RP2040 silicon platform, Pico products bring our signature values of high performance, low cost, and ease of use to the microcontroller space.
Raspberry Pi Pico W offers 2.4GHz 802.11 b/g/n wireless LAN support, with an on-board antenna, and modular compliance certification. It is able to operate in both station and access-point modes. Full access to network functionality is available to both C and MicroPython developers. Raspberry Pi Pico W pairs RP2040 with 2MB of flash memory, and a power supply chip supporting input voltages from 1.8–5.5V. It provides 26 GPIO pins, three of which can function as analogue inputs, on 0.1”-pitch through-hole pads with castellated edges. Raspberry Pi Pico W is available as an individual unit, or in 480-unit reels for automated assembly
Features¶
21 mm × 51 mm form factor
RP2040 microcontroller chip designed by Raspberry Pi in the UK
Dual-core Arm Cortex-M0+ processor, flexible clock running up to 133 MHz
264kB on-chip SRAM
2MB on-board QSPI flash
2.4GHz 802.11n wireless LAN
26 multifunction GPIO pins, including 3 analogue inputs
2 × UART, 2 × SPI controllers, 2 × I2C controllers, 16 × PWM channels
1 × USB 1.1 controller and PHY, with host and device support
8 × Programmable I/O (PIO) state machines for custom peripheral support
Supported input power 1.8–5.5V DC
Operating temperature -20°C to +70°C
Castellated module allows soldering direct to carrier boards
Drag-and-drop programming using mass storage over USB
Low-power sleep and dormant modes
Accurate on-chip clock
Temperature sensor
Accelerated integer and floating-point libraries on-chip
Pico’s Pins¶
Name |
Description |
Function |
---|---|---|
GP0-GP28 |
General-purpose input/output pins |
Act as either input or output and have no fixed purpose of their own |
GND |
0 volts ground |
Several GND pins around Pico W to make wiring easier. |
RUN |
Enables or diables your Pico |
Start and stop your Pico W from another microcontroller. |
GPxx_ADCx |
General-purpose input/output or analog input |
Used as an analog input as well as a digital input or output – but not both at the same time. |
ADC_VREF |
Analog-to-digital converter (ADC) voltage reference |
A special input pin which sets a reference voltage for any analog inputs. |
AGND |
Analog-to-digital converter (ADC) 0 volts ground |
A special ground connection for use with the ADC_VREF pin. |
3V3(O) |
3.3 volts power |
A source of 3.3V power, the same voltage your Pico W runs at internally, generated from the VSYS input. |
3v3(E) |
Enables or disables the power |
Switch on or off the 3V3(O) power, can also switches your Pico W off. |
VSYS |
2-5 volts power |
A pin directly connected to your Pico’s internal power supply, which cannot be switched off without also switching Pico W off. |
VBUS |
5 volts power |
A source of 5 V power taken from your Pico’s micro USB port, and used to power hardware which needs more than 3.3 V. |
The best place to find everything you need to get started with your Raspberry Pi Pico W is here
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