Platform ST STM32: The STM32 family of 32-bit Flash MCUs based on the ARM Cortex-M processor is designed to offer new degrees of freedom to MCU users. It offers a 32-bit product range that combines very high performance, real-time capabilities, digital signal processing, and low-power, low-voltage operation, while maintaining full integration and ease of development.

Microcontroller STM32L475VGT6
Frequency 80MHz
Flash 1MB
Vendor ST


Please use disco_l475vg_iot01a ID for board option in “platformio.ini” (Project Configuration File):

platform = ststm32
board = disco_l475vg_iot01a

You can override default ST DISCO-L475VG-IOT01A settings per build environment using board_*** option, where *** is a JSON object path from board manifest disco_l475vg_iot01a.json. For example, board_build.mcu, board_build.f_cpu, etc.

platform = ststm32
board = disco_l475vg_iot01a

; change microcontroller
board_build.mcu = stm32l475vgt6

; change MCU frequency
board_build.f_cpu = 80000000L


ST DISCO-L475VG-IOT01A supports the next uploading protocols:

  • jlink
  • stlink
  • blackmagic
  • mbed

Default protocol is mbed

You can change upload protocol using upload_protocol option:

platform = ststm32
board = disco_l475vg_iot01a

upload_protocol = mbed


PIO Unified Debugger - “1-click” solution for debugging with a zero configuration.


You will need to install debug tool drivers depending on your system. Please click on compatible debug tool below for the further instructions and configuration information.

You can switch between debugging Tools & Debug Probes using debug_tool option in “platformio.ini” (Project Configuration File).

ST DISCO-L475VG-IOT01A has on-board debug probe and IS READY for debugging. You don’t need to use/buy external debug probe.

Compatible Tools On-board Default
Black Magic Probe    


Name Description
Arduino Arduino Wiring-based Framework allows writing cross-platform software to control devices attached to a wide range of Arduino boards to create all kinds of creative coding, interactive objects, spaces or physical experiences.
mbed The mbed framework The mbed SDK has been designed to provide enough hardware abstraction to be intuitive and concise, yet powerful enough to build complex projects. It is built on the low-level ARM CMSIS APIs, allowing you to code down to the metal if needed. In addition to RTOS, USB and Networking libraries, a cookbook of hundreds of reusable peripheral and module libraries have been built on top of the SDK by the mbed Developer Community.
STM32Cube STM32Cube embedded software libraries, including: The HAL hardware abstraction layer, enabling portability between different STM32 devices via standardized API calls; The Low-Layer (LL) APIs, a light-weight, optimized, expert oriented set of APIs designed for both performance and runtime efficiency.