feat(wokwi-lcd1602/lcd-i2c-esp32-c3): lcd1602 + I2C test on ESP32-C3

Author: urish

.github/workflows/wokwi-test.yml

@@ -40,6 +40,9 @@ jobs:
           - name: lcd1602-uno
             path: wokwi-lcd1602/lcd-uno
             scenario: lcd1602.test.yaml
+          - name: lcd1602-esp32-c3
+            path: wokwi-lcd1602/lcd-i2c-esp32-c3
+            scenario: lcd1602.test.yaml
           - name: microsd-card-esp32
             path: wokwi-microsd-card/sd-esp32
             scenario: sd.test.yaml

README.md

@@ -17,6 +17,7 @@ This repository contains a set of test projects for many Wokwi parts. The tests
   - [Arduino Uno](./wokwi-ili9341/lcd-uno/)
 - wokwi-lcd1602
   - [Arduino Uno](./wokwi-lcd1602/lcd-uno/)
+  - [ESP32-C3 + I2C](./wokwi-lcd1602/lcd-i2c-esp32-c3/)
 - wokwi-micro-sd
   - [ESP32](./wokwi-micro-sd/sd-esp32/)
 - wokwi-slide-potentiometer

wokwi-lcd1602/lcd-i2c-esp32-c3/diagram.json

@@ -0,0 +1,22 @@
+{
+  "version": 1,
+  "author": "Uri Shaked",
+  "editor": "wokwi",
+  "parts": [
+    { "type": "board-xiao-esp32-c3", "id": "esp", "top": -153.03, "left": 4.18, "attrs": {} },
+    {
+      "type": "wokwi-lcd1602",
+      "id": "lcd1",
+      "top": -176,
+      "left": 149.6,
+      "attrs": { "pins": "i2c" }
+    }
+  ],
+  "connections": [
+    ["lcd1:GND", "esp:GND", "black", ["h-57.6", "v105.6"]],
+    ["lcd1:SDA", "esp:D4", "blue", ["h-19.2", "v77", "h-144", "v-48"]],
+    ["lcd1:SCL", "esp:D5", "gold", ["h-9.6", "v57.9", "h-144", "v-28.8"]],
+    ["lcd1:VCC", "esp:3V3", "red", ["h-38.4", "v57.7"]]
+  ],
+  "dependencies": {}
+}

wokwi-lcd1602/lcd-i2c-esp32-c3/lcd1602.test.yaml

@@ -0,0 +1,9 @@
+name: 'Arduino Uno ILI9341 Test'
+version: 1
+author: 'Uri Shaked'
+
+steps:
+  - wait-serial: 'Display initialized'
+  - take-screenshot:
+      part-id: 'lcd1'
+      compare-with: 'screenshots/lcd1602.png'

wokwi-lcd1602/lcd-i2c-esp32-c3/platformio.ini

@@ -0,0 +1,6 @@
+[env:esp32]
+platform = espressif32
+board = seeed_xiao_esp32c3
+framework = arduino
+lib_deps =
+    marcoschwartz/LiquidCrystal_I2C@^1.1.4

wokwi-lcd1602/lcd-i2c-esp32-c3/screenshots/lcd1602.png

@@ -0,0 +1,21 @@
+#include <Arduino.h>
+#include <LiquidCrystal_I2C.h>
+
+LiquidCrystal_I2C lcd(0x27, 16, 2);
+
+void setup() {
+  Serial.begin(115200);  
+  Wire.begin(6, 7); // SDA, SCL pins for Seeed Xiao ESP32-C3
+  lcd.init();
+  lcd.backlight();
+  lcd.setCursor(1, 0);
+  lcd.print("Hello Wokwi :-)");
+  lcd.setCursor(2, 1);
+  lcd.print("ESP32-C3 w/I2C");
+
+  Serial.println("Display initialized");
+}
+
+void loop() {
+  delay(100);
+}

wokwi-lcd1602/lcd-i2c-esp32-c3/src/main.cpp

@@ -0,0 +1,4 @@
+[wokwi]
+version = 1
+firmware = '.pio/build/esp32/firmware.bin'
+elf = '.pio/build/esp32/firmware.elf'