RM2 Wireless & Bluetooth Breakout (SP/CE)

by Pimoroni

Add 2.4GHz wireless and Bluetooth functionality to an existing project with this handy breakout featuring Raspberry Pi's RM2 module.

RM2 uses the same two-in-one wireless and Bluetooth module that's found on Raspberry Pi Pico W, making it easy to use directly with any RP2040 or RP2350 board.

This breakout has a SP/CE connector on board so you can connect it easily to any SP/CE compatible microcontroller (like Pico Plus 2 or Pico LiPo 2) or add-on using a handy cable (of course, there's also pads if you'd prefer to solder wires to it). 

Click here to view all things SP/CE!

Host and SP/CE cable are not included.

Features

  • Raspberry Pi RM2 module (CYW43439), supporting IEEE 802.11 b/g/n wireless LAN, and Bluetooth
  • SP/CE connector (8 pin JST-SH)
  • 0.1" headers (breadboard compatible)
  • Compatible with Raspberry Pi Pico / Pico 2 / RP2040 / RP2350
  • Input voltage: 3.0 - 3.3V
  • Dimensions: 23.8 x 20.4 x 4.7 mm (L x W x H)

Pinout and Schematic

Getting Started

You can use RM2 Breakout with Raspberry Pi Pico 2 or other RP2350 based microcontrollers using our custom MicroPython build that allows for pin re-assignment. 

You'll need to set the pins that the module is connected to before you do anything with the network. On a Pico Plus 2 (with a RM2 breakout connected via SP/CE cable), that would look like this:

wlan = network.WLAN(network.STA_IF, pin_on=32, pin_out=35, pin_in=35, pin_wake=35, pin_clock=34, pin_cs=33)

Alternatively, if you have a RP2040 or RP2350 board that exposes GP23, GP24, GP25, and GP29 (such as PGA2040 or PGA2350) you can wire the module up to the default Pico W pins and you won't need to do any pin configuration. The pins are:

  • WL_ON -> GP23
  • DAT -> GP24
  • CS -> GP25
  • CLK -> GP29

If you have a Pimoroni Pico LiPo 2 then the SP/CE pins are used by default for Wi-Fi, making things super easy.

Notes

  • By default the BL_ON pin is wired to the WL_ON pin. There is a cuttable trace on the rear of the board, if your project needs these to be disconnected.