NodeMCU 0.9 (ESP-12 Module)

Hardware

Platform Espressif 8266: Espressif Systems is a privately held fabless semiconductor company. They provide wireless communications and Wi-Fi chips which are widely used in mobile devices and the Internet of Things applications.

Microcontroller

ESP8266

Frequency

80MHz

Flash

4MB

RAM

80KB

Vendor

NodeMCU

Configuration

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

[env:nodemcu]
platform = espressif8266
board = nodemcu

You can override default NodeMCU 0.9 (ESP-12 Module) settings per build environment using board_*** option, where *** is a JSON object path from board manifest nodemcu.json. For example, board_build.mcu, board_build.f_cpu, etc.

[env:nodemcu]
platform = espressif8266
board = nodemcu

; change microcontroller
board_build.mcu = esp8266

; change MCU frequency
board_build.f_cpu = 80000000L

Uploading

NodeMCU 0.9 (ESP-12 Module) supports the following uploading protocols:

  • espota

  • esptool

Default protocol is esptool

You can change upload protocol using upload_protocol option:

[env:nodemcu]
platform = espressif8266
board = nodemcu

upload_protocol = esptool

Debugging

Debugging currently does not support NodeMCU 0.9 (ESP-12 Module) board.

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

ESP8266 Non-OS SDK

The non-OS SDK provides a set of application programming interfaces (APIs) for core ESP8266 functionalities such as data reception/transmission over Wi-Fi, TCP/IP stack functions, hardware interface functions and basic system management functions

ESP8266 RTOS SDK

ESP8266 SDK based on FreeRTOS, a truly free professional grade RTOS for microcontrollers