> **Source:** Core Electronics is an Australian maker-electronics retailer and manufacturer based in Newcastle, NSW, run by a team of makers and educators. We design and manufacture our own product lines (PiicoDev, CE originals) and are official retailers for iconic maker and industrial brands including Raspberry Pi, Arduino, Adafruit, SparkFun and DFRobot. Orders ship Australia-wide from our Newcastle warehouse. Prices are in AUD and include GST. Pricing, stock and dispatch on this page are generated from the store's live catalog. Full machine-readable index: https://core-electronics.com.au/llms.txt

# SparkFun MicroMod STM32WB5MMG Processor

**Type:** Product page · **SKU:** DEV-21438 · **Brand:** [Sparkfun](https://core-electronics.com.au/brands/sparkfun-australia)
**Page:** https://core-electronics.com.au/sparkfun-micromod-stm32wb5mmg-processor.html ([markdown](https://core-electronics.com.au/sparkfun-micromod-stm32wb5mmg-processor.html.md))

The MicroMod STM32WB5MMG Processor has a powerful combination of computing and wireless capabilities all on one Processor...

## Pricing

- **Price:** $36.30 (inc GST) — $33.00 AUD, exc GST
- **Quantity discounts:** 5+ $32.01 (exc GST) · 25+ $31.35 (exc GST) · 100+ $30.03 (exc GST)

## Availability & dispatch

- Out of stock — the product page offers email notification when it returns.

## Restrictions

**For use in Australia**

- Operate only in bands and with settings that are permitted for your location and application. Check this product’s supported frequencies in the description/specs.
- If you intend to operate outside shared/licence‑exempt conditions (e.g. in other bands, at higher power, with high‑gain antennas, or extended duty cycles), you must have the appropriate authorisation.
 
**For use in other regions**

- Follow the spectrum rules for your country/region and select frequencies and settings accordingly.

A declaration of use will need to be submitted during checkout.

## How to buy

- **Build a cart:** compose `https://core-electronics.com.au/cart/link?items=DEV-21438:1` (comma-separated SKU:qty pairs) and share the link. Opening it shows a confirmation page with live pricing and stock before anything is added to the cart.
- **Verify the cart first:** fetch `https://core-electronics.com.au/cart/link/DEV-21438:1.md` for live line prices (inc & exc GST, quantity discounts applied), stock and dispatch estimates, and totals. Append `/to/{AU-postcode}` (or `/to/{country-code}:{postcode}`) before `.md` for delivery options and prices to that destination. Unknown, retired, or out-of-stock SKUs are flagged. (Query form `cart/link.md?items=...` also works but some robots parsers refuse query strings here.)
- **Checkout** is completed on-site and includes a captcha at the payment step. Share the cart link; checkout takes it from there.
- **Search the catalogue:** `https://core-electronics.com.au/search/{query}.md` (URL-encode the query; pages 2-3 at `search/{query}/{page}.md`; `search.md?q=` also works)
- **Payment methods, purchase orders, policies and contact details:** https://core-electronics.com.au/llms.txt
## Description

The MicroMod STM32WB5MMG Processor expands on SparkFun's MicroMod ST product line with a powerful combination of computing and wireless capabilities on one M.2-connectable processor. The STM32WB5MMG from STMicroelectronics™ is an ultra-low power microcontroller that combines a pair of Arm® Cortex® processors; a Cortex-M4 processor with FPU and ART for primary computing and a Cortex-M0 to run the 2.4 GHz RF stack. The module's radio is Bluetooth® Low Energy 5.3, Zigbee® 3.0, and OpenThread certified.

The Cortex-M4 CPU on this Processor can operate at a frequency of up to 64 MHz and features a floating point unit (FPU) single precision, which supports all ARM single-precision data-processing instructions and data types. It also implements a full set of DSP instructions and a memory protection unit (MPU) which enhances application security. The module uses an integrated chip antenna for the RF stack with Tx output power up to +6 dBm and Rx sensitivity of -96 dBm for BLE and -100 dBm for 802.15.4 protocols. The processor includes an additional 128Mb (16MB) serial flash memory chip on the underside of the board.

*[MicroMod](https://www.sparkfun.com/micromod) is a modular interface ecosystem that connects a microcontroller “processor board” to various “carrier board” peripherals. Utilizing the M.2 standard, the MicroMod standard is designed to easily swap out processors on the fly. Pair a specialized carrier board for the project you need with your choice of compatible processor!*

 [Get Started with the MicroMod STM32WB5MMG Processor Hookup Guide](https://learn.sparkfun.com/tutorials/micromod-stm32wb5mmg-hookup-guide)### Features

**STM32WB5MMG General Features:**

- Pair of Arm® Cortex® Processors:
    - Arm® Cortex®-M4 CPU with FPU (Floating Point Unit)
        - Adaptive real-time accelerator (ART Accelerator™) allowing 0-wait state execution from Flash memory
        - Frequency up to 64 MHz
        - Memory protection unit
        - 80 DMIPS/ 1.25 DMIPS/MHz (Dhrystone 2.1)
        - DSP instructions
    - Arm® Cortex®-M0+ CPU
        - Dedicated to 2.4 GHz RF transceiver and security peripherals
- 2.4 GHz RF Transceiver
    - Bluetooth® 5.3
    - IEEE 802.15.4-2011 PHY and MAC
    - Output Power: Programmable up to +6 dBm (1 dBm increments)
    - RX Sensitivity:
        - -96 dBm for BLE @ 1 Mbps
        - -100 dBm for 802.15.4
    - Max Range: 75 m
- 1 MB Flash memory
- 256 KB SRAM
- Supply Voltage Range: 1.71 to 3.6 V
- Ultra-Low Power Consumption
    - Shutdown Mode: 13 nA
    - Stop Mode: 600 nA
    - Standby Mode: 600 nA
    - Radio: 4.5 mA (Rx) / 5.2 mA (Tx @ 0 dBm)

**Specific Peripherals available on MicroMod STM32WB5MMG**

- Two UART (One low power)
- Two I2C Buses
- SPI
- I2S Audio
- 16-bit Advanced Four-Channel Timer
- Two Dedicated Analog Inputs
- Two Dedicated PWM
    - Shared with Timer pins
- Eight General Purpose I/O Pins

### Documents

**MicroMod STM32WB5MMG Processor Documentation**

- [Schematic](https://core-electronics.com.au/attachments/localcontent/MicroMod_Processor_STM32WB5MMG_134312ca4fc.pdf)
- [Eagle Files](https://core-electronics.com.au/attachments/localcontent/MicroMod_Processor_STM32WB5MMG_18710faad11.zip)
- [Board Dimensions](https://core-electronics.com.au/attachments/localcontent/MicroMod_Processor_STM32WB5MMG_105440d9f17.png)
- [Datasheet](https://core-electronics.com.au/attachments/localcontent/stm32wb5mmg_47149c70f80.pdf) (STM32WB55MMG)
- [Datasheet](https://core-electronics.com.au/attachments/localcontent/STM32WB55xx_Datasheet_31274abc52d.pdf) (STM32WB55xx)
- [Reference Manual](https://core-electronics.com.au/attachments/localcontent/STM32WB55xx_Reference_Manual_180887d1290.pdf) (STM32WB55xx)
- [Hookup Guide](https://learn.sparkfun.com/tutorials/micromod-stm32wb5mmg-hookup-guide)
- [GitHub Hardware Repo](https://github.com/sparkfun/MicroMod_Processor_STM32WB5MMG)

**MicroMod Documentation**

- [Getting Started with MicroMod](https://learn.sparkfun.com/tutorials/getting-started-with-micromod)
- [Designing with MicroMod](https://learn.sparkfun.com/tutorials/designing-with-micromod)
- [MicroMod Info Page](https://www.sparkfun.com/micromod)
- [MicroMod Forums](https://forum.sparkfun.com/viewforum.php?f=167)

## Images

- [Product image 1](https://core-electronics.com.au/media/catalog/product/D/E/DEV-21438-1.jpg)