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NodeMCU-32S

Contents

Hardware

Platform :ref:`platform_espressif32`: ESP32 is a series of low-cost, low-power system on a chip microcontrollers with integrated Wi-Fi and Bluetooth. ESP32 integrates an antenna switch, RF balun, power amplifier, low-noise receive amplifier, filters, and power management modules.

Microcontroller ESP32
Frequency 240MHz
Flash 4MB
RAM 320KB
Vendor NodeMCU

Configuration

Please use nodemcu-32s ID for :ref:`projectconf_env_board` option in :ref:`projectconf`:

[env:nodemcu-32s]
platform = espressif32
board = nodemcu-32s

You can override default NodeMCU-32S settings per build environment using board_*** option, where *** is a JSON object path from board manifest nodemcu-32s.json. For example, board_build.mcu, board_build.f_cpu, etc.

[env:nodemcu-32s]
platform = espressif32
board = nodemcu-32s

; change microcontroller
board_build.mcu = esp32

; change MCU frequency
board_build.f_cpu = 240000000L

Uploading

NodeMCU-32S supports the following uploading protocols:

  • cmsis-dap
  • esp-bridge
  • esp-prog
  • espota
  • esptool
  • iot-bus-jtag
  • jlink
  • minimodule
  • olimex-arm-usb-ocd
  • olimex-arm-usb-ocd-h
  • olimex-arm-usb-tiny-h
  • olimex-jtag-tiny
  • tumpa

Default protocol is esptool

You can change upload protocol using :ref:`projectconf_upload_protocol` option:

[env:nodemcu-32s]
platform = espressif32
board = nodemcu-32s

upload_protocol = esptool

Debugging

:ref:`piodebug` - "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 :ref:`debugging_tools` using :ref:`projectconf_debug_tool` option in :ref:`projectconf`.

NodeMCU-32S 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
:ref:`debugging_tool_cmsis-dap`   Yes
esp-bridge    
:ref:`debugging_tool_esp-prog`    
:ref:`debugging_tool_iot-bus-jtag`    
:ref:`debugging_tool_jlink`    
:ref:`debugging_tool_minimodule`    
:ref:`debugging_tool_olimex-arm-usb-ocd`    
:ref:`debugging_tool_olimex-arm-usb-ocd-h`    
:ref:`debugging_tool_olimex-arm-usb-tiny-h`    
:ref:`debugging_tool_olimex-jtag-tiny`    
:ref:`debugging_tool_tumpa`    

Frameworks

Name Description
:ref:`framework_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.
:ref:`framework_espidf` Espressif IoT Development Framework. Official development framework for ESP32 chip