LilyGo T3-STM32

Hardware

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	STM32WLE5CCU7
Frequency	48MHz
Flash	256KB
RAM	64KB
Vendor	LilyGo

Configuration

Please use lilygo_t3_stm32_v1 ID for board option in “platformio.ini” (Project Configuration File):

[env:lilygo_t3_stm32_v1]
platform = ststm32
board = lilygo_t3_stm32_v1

You can override default LilyGo T3-STM32 settings per build environment using board_*** option, where *** is a JSON object path from board manifest lilygo_t3_stm32_v1.json. For example, board_build.mcu, board_build.f_cpu, etc.

[env:lilygo_t3_stm32_v1]
platform = ststm32
board = lilygo_t3_stm32_v1

; change microcontroller
board_build.mcu = stm32wle5ccu7

; change MCU frequency
board_build.f_cpu = 48000000L

Uploading

LilyGo T3-STM32 supports the following uploading protocols:

• jlink

• serial

• stlink

Default protocol is serial

You can change upload protocol using upload_protocol option:

[env:lilygo_t3_stm32_v1]
platform = ststm32
board = lilygo_t3_stm32_v1

upload_protocol = serial

Debugging

Debugging - “1-click” solution for debugging with a zero configuration.

Warning

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).

LilyGo T3-STM32 does not have on-board debug probe and IS NOT READY for debugging. You will need to use/buy one of external probe listed below.

Compatible Tools	On-board	Default
J-LINK		Yes
ST-LINK

Frameworks

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.