Referências e Links para o Wokwi

Como criar um projeto no Wokwi

  1. Acesse wokwi.com
  2. Clique em New Project
  3. Selecione ESP32 → MicroPython
  4. Monte o circuito na aba Diagram
  5. Cole o código na aba main.py
  6. Clique em Play para simular

Mapeamento de pinos por aula

ESP32 (principal)

Função GPIO Aulas
LED0 — bit 0 2 1, 2, 3, 4, 6, 7, 8
LED1 — bit 1 4 2, 3, 4, 6, 8
LED2 — bit 2 5 3, 4, 6, 8
LED3 — bit 3 18 3, 4, 6, 8
Botão A (único) 4 1
Botão A (dois botões) 13 2, 5, 6
Botão B 14 2, 6
LED Verde (semáforo) 2 5
LED Amarelo (semáforo) 4 5
LED Vermelho (semáforo) 5 5
Botão semáforo 13 5
UART1 TX (loopback) 4 7, 8
UART1 RX (loopback) 5 7, 8
UART2 TX (loopback) 17 7, 8
UART2 RX (loopback) 16 7, 8
LED (loopback aula 7) 2 7
Botão (loopback aula 7) 13 7

Raspberry Pi Pico (alternativa)

Função GPIO
LED0 0
LED1 1
LED2 2
LED3 3
Botão A 14
Botão B 15
UART0 TX 0
UART0 RX 1

Para o Pico, selecione Raspberry Pi Pico ao criar o projeto no Wokwi. O código MicroPython é idêntico — ajuste apenas os números dos pinos conforme a tabela acima.

Templates de circuito por aula

Atenção: os templates abaixo são pontos de partida. Os diagram.json validados pelo professor estão dentro de cada arquivo de aula — use-os preferencialmente.

Aulas 1 e 2 — 1 LED + 1 ou 2 botões

{
  "version": 1,
  "author": "RMB - Mini Curso Embarcados",
  "editor": "wokwi",
  "parts": [
    { "type": "wokwi-esp32-devkit-v1", "id": "esp", "top": 0, "left": 0, "attrs": {} },
    { "type": "wokwi-led", "id": "led1", "top": 100, "left": 200, "attrs": { "color": "red" } },
    { "type": "wokwi-resistor", "id": "r1", "top": 140, "left": 200, "attrs": { "value": "220" } },
    { "type": "wokwi-pushbutton", "id": "btn1", "top": 100, "left": 350, "attrs": {} },
    { "type": "wokwi-resistor", "id": "r2", "top": 140, "left": 350, "attrs": { "value": "10000" } }
  ],
  "connections": [
    ["esp:2",  "r1:1",     "green", []],
    ["r1:2",   "led1:A",   "green", []],
    ["led1:K", "esp:GND.1","black", []],
    ["esp:4",  "btn1:1.l", "blue",  []],
    ["btn1:2.l","esp:3V3", "red",   []],
    ["btn1:1.l","r2:1",    "blue",  []],
    ["r2:2",   "esp:GND.1","black", []]
  ]
}

Aulas 3 e 4 — 4 LEDs

{
  "version": 1,
  "author": "RMB - Mini Curso Embarcados",
  "editor": "wokwi",
  "parts": [
    { "type": "wokwi-esp32-devkit-v1", "id": "esp", "top": 0, "left": 0, "attrs": {} },
    { "type": "wokwi-led", "id": "led0", "top": 80, "left": 250, "attrs": { "color": "red"    } },
    { "type": "wokwi-led", "id": "led1", "top": 80, "left": 290, "attrs": { "color": "yellow" } },
    { "type": "wokwi-led", "id": "led2", "top": 80, "left": 330, "attrs": { "color": "green"  } },
    { "type": "wokwi-led", "id": "led3", "top": 80, "left": 370, "attrs": { "color": "blue"   } },
    { "type": "wokwi-resistor", "id": "r0", "top": 120, "left": 250, "attrs": { "value": "220" } },
    { "type": "wokwi-resistor", "id": "r1", "top": 120, "left": 290, "attrs": { "value": "220" } },
    { "type": "wokwi-resistor", "id": "r2", "top": 120, "left": 330, "attrs": { "value": "220" } },
    { "type": "wokwi-resistor", "id": "r3", "top": 120, "left": 370, "attrs": { "value": "220" } }
  ],
  "connections": [
    ["esp:2",  "r0:1", "green", []], ["r0:2", "led0:A", "green", []], ["led0:K", "esp:GND.1", "black", []],
    ["esp:4",  "r1:1", "green", []], ["r1:2", "led1:A", "green", []], ["led1:K", "esp:GND.1", "black", []],
    ["esp:5",  "r2:1", "green", []], ["r2:2", "led2:A", "green", []], ["led2:K", "esp:GND.1", "black", []],
    ["esp:18", "r3:1", "green", []], ["r3:2", "led3:A", "green", []], ["led3:K", "esp:GND.1", "black", []]
  ]
}

Aula 5 — Semáforo (diagram.json validado — use o da própria aula)

O diagram.json validado está em Aula 5. Projeto Wokwi: https://wokwi.com/projects/462409529242615809

Aula 6 — 4 LEDs + 2 botões (flags)

{
  "version": 1,
  "author": "RMB - Mini Curso Embarcados",
  "editor": "wokwi",
  "parts": [
    { "type": "wokwi-esp32-devkit-v1", "id": "esp", "top": 0, "left": 0, "attrs": {} },
    { "type": "wokwi-led", "id": "led0", "top": 80, "left": 250, "attrs": { "color": "green"  } },
    { "type": "wokwi-led", "id": "led1", "top": 80, "left": 290, "attrs": { "color": "blue"   } },
    { "type": "wokwi-led", "id": "led2", "top": 80, "left": 330, "attrs": { "color": "yellow" } },
    { "type": "wokwi-led", "id": "led3", "top": 80, "left": 370, "attrs": { "color": "red"    } },
    { "type": "wokwi-resistor", "id": "r0", "top": 120, "left": 250, "attrs": { "value": "220" } },
    { "type": "wokwi-resistor", "id": "r1", "top": 120, "left": 290, "attrs": { "value": "220" } },
    { "type": "wokwi-resistor", "id": "r2", "top": 120, "left": 330, "attrs": { "value": "220" } },
    { "type": "wokwi-resistor", "id": "r3", "top": 120, "left": 370, "attrs": { "value": "220" } },
    { "type": "wokwi-pushbutton", "id": "btnL", "top": 180, "left": 250, "attrs": { "color": "green"  } },
    { "type": "wokwi-pushbutton", "id": "btnT", "top": 180, "left": 340, "attrs": { "color": "yellow" } },
    { "type": "wokwi-resistor", "id": "rpL", "top": 220, "left": 210, "attrs": { "value": "10000" } },
    { "type": "wokwi-resistor", "id": "rpT", "top": 220, "left": 300, "attrs": { "value": "10000" } }
  ],
  "connections": [
    ["esp:2",  "r0:1", "green",  []], ["r0:2", "led0:A", "green",  []], ["led0:K", "esp:GND.1", "black", []],
    ["esp:4",  "r1:1", "blue",   []], ["r1:2", "led1:A", "blue",   []], ["led1:K", "esp:GND.1", "black", []],
    ["esp:5",  "r2:1", "yellow", []], ["r2:2", "led2:A", "yellow", []], ["led2:K", "esp:GND.1", "black", []],
    ["esp:18", "r3:1", "red",    []], ["r3:2", "led3:A", "red",    []], ["led3:K", "esp:GND.1", "black", []],
    ["esp:13", "btnL:1.l", "green",  []], ["btnL:2.l", "esp:3V3", "red", []], ["btnL:1.l", "rpL:1", "green",  []], ["rpL:2", "esp:GND.1", "black", []],
    ["esp:14", "btnT:1.l", "yellow", []], ["btnT:2.l", "esp:3V3", "red", []], ["btnT:1.l", "rpT:1", "yellow", []], ["rpT:2", "esp:GND.1", "black", []]
  ]
}

Aulas 7 e 8 — Loopback UART (diagram.json validado — use o da própria aula)

O diagram.json validado da Aula 7 está em Aula 7. Projeto Wokwi: https://wokwi.com/projects/462409529242615809

Esquema do loopback interno para referência:

UART1 TX (GPIO 4)  ──────► UART2 RX (GPIO 16)
UART2 TX (GPIO 17) ──────► UART1 RX (GPIO 5)
UART0              ──────► $serialMonitor  (monitor serial — não usar para dados)

Restrições importantes do Wokwi

Situação Problema Solução
Comunicação serial UART0 reservada ao monitor Usar UART1 + UART2 em loopback
Leitura serial no terminal uart.any() falha com UART0 Usar input()
Circuitos gerados automaticamente Conexões frequentemente incompletas Validar no Wokwi antes de publicar

Referências