# 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.

## 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)