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[Feature Request] GPIO support in MeshCore

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评估

难度
5/5
预计耗时
一周以上
新手友好度
35/100
Issue 类型
功能
描述清晰度
基本清楚
活跃度
活跃
技术栈
c
领域
cli, embedded-iot

调研方向

Start by reading src/MeshCore.h, especially the existing MainBoard GPIO methods, then trace the common CLI and board subclasses for the roles and board types mentioned in the proposal. The issue proposes GPIO defines, analog and digital access, and new CLI commands, but leaves compatibility and implementation details open; done would mean agreeing on the interface and supporting the requested pin operations across board roles.

由索引模型根据 Issue 内容生成。

描述

I need to access GPIO pins on my meshcore nodes. I guess that this is something that others also want, and I can write an implementation of this if the proposal is acceptable. The idea is that we expose new CLI commands that lets you set/retieve the values of a GPIO-pin. This is something that I want to implement on all roles.

I want to make some new defines:

GPIO_IN
GPIO_OUT
GPIO_DAC
GPIO_ADC

These defines is a comma-separated list of GPIO-pins that is accessible using the CLI. If a define is not present, then there will be no corresponding GPIO for that type.

Then I want to extend mesh::MainBoard in src/MeshCore.h with some new member functions. These should be overridden at the board type (ESP32 etc).

class MainBoard {
    public:
    virtual bool setGPIO(int pin, bool newState) = 0; // returns true if the pin was set
    virtual bool setDAC(int pin, float value) = 0; // returns true if the pin was set
    virtual bool getGPIO(int pin); // return the value, or false if the pin does not exist
    virutal float getADC(int pin); // returns the value, or 0
}

I know that getGpio() and setGpio() is defined in MainBoard already, and probably it would be a good idea to use them. I just don't know the consequence yet of using these.

I have not a GPIO-init function here. I think that can be handled by the MainBoard subclass own setup/begin() function.

Then change the common CLI, add some new commands.

set gpio 1 1
get gpio 1
set gpio 2 3.43

If the GPIO is analog, use float values, for digital use 0 or 1.

Any thoughts?

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从这里开始

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  3. Fork 仓库，在一个分支上完成修改。
  4. 提交 Pull Request，并在描述里引用这个 Issue 编号。

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