hidan0 / led-brightness-pwm

[ESP32C3] Control LED brightness via PWM in Rust!

Led Brightness PWM

Description

This project demonstrates how to use an ESP32C3 to control the brightness of an LED remotely via a Wi-Fi network. The brightness of the LED is controlled via Pulse Width Modulation (PWM).

This project incorporates a web application built with Vue.js to facilitate LED brightness adjustment.

Overview

LED Control

The led controller can be found under led-brightness/.

First of all you need to set wifi_ssid and wifi_pwd, to do so create a copy of cfg.toml.example and rename it to cfg.toml, then set your Wi-Fi data.

# cfg.toml.example
[led-brightness]
wifi_ssid = "FBI Surveillance Van"
wifi_pwd = "hunter2"

The web server exposes the following endpoints:

• GET: /brightness returns:

  {
      "max": "<max duty>",
      "current": "<current duty>"
  }

• PUT: /brightness?<val> where: $0 \leq$ val $\leq 100$ used to set LED brightness

• OPTIONS: /brightness used for CORS

The PWM is set to Gpio6.

Web app

The web app can be found under slider/.

To run it you need to:

• Install dependences:

  $ yarn install

• Set BOARD_IP in ./src/components/Slider.vue with the IP shown in the logs;

• Start the app:

  $ yarn dev

  or

  $ yarn dev --host

  to use it remotely (must be under same Wi-Fi network).