Pimoroni Pico Plus 2 W

The board as it appears on the Velxio canvas, with its full pin map read live from the simulator (regenerated by scripts/gen-boards.mjs, so it always matches what you can wire).

Family: Pro boards · Languages: Arduino C++

About this board

Pimoroni’s RP2350B in the standard Pico footprint — GP0 through GP28 plus the power rails — so any wiring you built for a Pico drops straight onto it. What the extra silicon adds: 16 MB of flash, 8 MB of PSRAM, a Raspberry Pi RM2 wireless module, a Qw/ST (Qwiic/STEMMA QT) connector on GP4/GP5, and a BOOT button that doubles as a user switch on GP45.

Two board details that surprise people, on real hardware as much as here:

• The user LED is not a chip pin. It hangs off the RM2 module’s WL_GPIO0 — LED_BUILTIN in Arduino, Pin('LEDW') in MicroPython — so it is driven by a command over the module’s SPI bus rather than a GPIO write. It lights here all the same.
• The pads marked 26, 27 and 28 are two GPIOs each. The RP2350B’s ADC lives on GP40–GP47, nowhere near the Pico footprint, so Pimoroni tied GP26+GP40, GP27+GP41 and GP28+GP42 together through a 1 kΩ resistor and silked each pad with both names — 26 / A0 and so on. That is why analogRead(A0) works and analogRead(26) returns 0: A0 is GP40. There is no A3 pad; GP43 is the on-board VSYS monitor.

What runs here: GPIO, UART, USB serial, I2C, SPI, ADC — including the on-die temperature sensor, so analogReadTemp() returns a steady 27 °C — timers, the BOOT button, the 8 MB PSRAM (pmalloc() returns real memory in the XIP window at 0x11000000) and WiFi — the CYW43439 inside the RM2 is emulated register by register, so WiFi.begin() associates with Velxio’s virtual access point (Velxio-GUEST, open), gets 10.13.37.42 and can make real HTTP requests through Velxio’s network bridge. WiFi.scanNetworks() finds it too — one network, Velxio-GUEST on channel 6, open, around -40 dBm, which is everything that is on the air here. Not emulated: Bluetooth.

Start here

• Onboard LED — Pimoroni’s onboard_led.py: blinks the user LED on the RM2.
• Who is in space — their astronauts.py: joins WiFi and fetches a real HTTP response, live from open-notify.org. (Their catfacts.py is not shipped: catfact.ninja now redirects to HTTPS, and TLS is out of reach for the emulated chip.)
• BOOT as user button — their button.py: hold BOOT (GP45) and the LED comes on.
• The 8 MB PSRAM — allocates a megabyte outside the chip’s own 520 KB of SRAM and verifies it.
• Analog in on A0 — a potentiometer on the pad silked 26 / A0, read as A0.
• Qw/ST breakout bus — scans the Qwiic connector on GP4/GP5 and reads the demo I2C devices, the pattern Pimoroni’s breakout examples use.

Pins (40)

• GP0
• GP1
• GND.1
• GP2
• GP3
• GP4
• GP5
• GND.2
• GP6
• GP7
• GP8
• GP9
• GND.3
• GP10
• GP11
• GP12
• GP13
• GND.4
• GP14
• GP15
• GP16
• GP17
• GND.5
• GP18
• GP19
• GP20
• GP21
• GND.6
• GP22
• RUN
• GP26
• GP27
• GND.7
• GP28
• ADC_VREF
• 3V3
• 3V3_EN
• GND.8
• VSYS
• VBUS

Every pin above is clickable on the canvas — click one to start a wire. Board-level behavior, quirks and example links live on the family page.