Espotel LoRa Module

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

STM32F411RET6

Frequency

100MHz

Flash

512KB

RAM

128KB

Vendor

Espotel

Configuration

Please use elmo_f411re ID for board option in “platformio.ini” (Project Configuration File):

[env:elmo_f411re]
platform = ststm32
board = elmo_f411re

You can override default Espotel LoRa Module settings per build environment using board_*** option, where *** is a JSON object path from board manifest elmo_f411re.json. For example, board_build.mcu, board_build.f_cpu, etc.

[env:elmo_f411re]
platform = ststm32
board = elmo_f411re

; change microcontroller
board_build.mcu = stm32f411ret6

; change MCU frequency
board_build.f_cpu = 100000000L

Uploading

Espotel LoRa Module supports the following uploading protocols:

  • blackmagic

  • cmsis-dap

  • jlink

  • stlink

Default protocol is stlink

You can change upload protocol using upload_protocol option:

[env:elmo_f411re]
platform = ststm32
board = elmo_f411re

upload_protocol = stlink

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).

Espotel LoRa Module 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

Black Magic Probe

CMSIS-DAP

J-LINK

ST-LINK

Yes

Frameworks

Name

Description

CMSIS

Vendor-independent hardware abstraction layer for the Cortex-M processor series

Open-source ARM Cortex-M microcontroller library

The libopencm3 project aims to create an open-source firmware library for various ARM Cortex-M microcontrollers.

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