feat(wokwi-led-ring): arduino uno test

Author: urish

.github/workflows/wokwi-test.yml

@@ -43,6 +43,9 @@ jobs:
           - name: lcd1602-esp32-c3
             path: wokwi-lcd1602/lcd-i2c-esp32-c3
             scenario: lcd1602.test.yaml
+          - name: led-ring-uno
+            path: wokwi-led-ring/neopixel-uno
+            scenario: neopixel.test.yaml
           - name: microsd-card-esp32
             path: wokwi-microsd-card/sd-esp32
             scenario: sd.test.yaml

README.md

@@ -18,6 +18,8 @@ This repository contains a set of test projects for many Wokwi parts. The tests
 - wokwi-lcd1602
   - [Arduino Uno](./wokwi-lcd1602/lcd-uno/)
   - [ESP32-C3 + I2C](./wokwi-lcd1602/lcd-i2c-esp32-c3/)
+- wokwi-led-ring
+  - [Arduino Uno](./wokwi-led-ring/neopixel-uno/)
 - wokwi-micro-sd
   - [ESP32](./wokwi-micro-sd/sd-esp32/)
 - wokwi-photoresistor-sensor

board-ssd1306/oled-esp32/ssd1306.test.yaml

@@ -1,6 +1,6 @@
 name: 'ESP32 SSD1306 OLED Test'
 version: 1
-author: 'Test Author'
+author: 'Uri Shaked'
 
 steps:
   - wait-serial: 'Display initialized'

wokwi-led-ring/neopixel-uno/diagram.json

@@ -0,0 +1,21 @@
+{
+  "version": 1,
+  "author": "Uri Shaked",
+  "editor": "wokwi",
+  "parts": [
+    { "type": "wokwi-arduino-uno", "id": "uno", "top": 0, "left": 0, "attrs": {} },
+    {
+      "type": "wokwi-led-ring",
+      "id": "ring1",
+      "top": -239.49,
+      "left": 25.13,
+      "attrs": { "pixels": "24" }
+    }
+  ],
+  "connections": [
+    ["ring1:VCC", "uno:5V", "red", ["v11.92", "h-120.06", "v237.68", "h164.86"]],
+    ["uno:2", "ring1:DIN", "green", ["v-28.2", "h-92.5"]],
+    ["ring1:GND", "uno:GND.1", "black", ["v21.52", "h-9.73"]]
+  ],
+  "dependencies": {}
+}

wokwi-led-ring/neopixel-uno/neopixel.test.yaml

@@ -0,0 +1,9 @@
+name: 'Arduino LED Ring Test'
+version: 1
+author: 'Uri Shaked'
+
+steps:
+  - wait-serial: 'LEDs ready.'
+  - take-screenshot:
+      part-id: 'ring1'
+      compare-with: 'screenshots/led-ring.png'

wokwi-led-ring/neopixel-uno/platformio.ini

@@ -0,0 +1,6 @@
+[env:uno]
+platform = atmelavr
+board = uno
+framework = arduino
+lib_deps =
+    Adafruit NeoPixel

wokwi-led-ring/neopixel-uno/screenshots/led-ring.png

@@ -0,0 +1,39 @@
+#include <Arduino.h>
+#include <Adafruit_NeoPixel.h>
+
+#define PIXEL_COUNT 24
+
+Adafruit_NeoPixel ring = Adafruit_NeoPixel(24, 2);
+
+int32_t Wheel(byte WheelPos);
+
+void setup() {
+  Serial.begin(115200);
+  ring.begin();
+  ring.setBrightness(255);
+
+  for (uint16_t j = 0; j < 256 * 5; j++) {
+    for (uint16_t i = 0; i < ring.numPixels(); i++) {
+      ring.setPixelColor(i, Wheel(((i * 256 / ring.numPixels()) + j) & 255));
+    }
+  }
+
+  ring.show();
+  Serial.println("LEDs ready.");
+}
+
+void loop() {
+}
+
+int32_t Wheel(byte WheelPos) {
+  WheelPos = 255 - WheelPos;
+  if (WheelPos < 85) {
+    return ring.Color(255 - WheelPos * 3, 0, WheelPos * 3);
+  }
+  if (WheelPos < 170) {
+    WheelPos -= 85;
+    return ring.Color(0, WheelPos * 3, 255 - WheelPos * 3);
+  }
+  WheelPos -= 170;
+  return ring.Color(WheelPos * 3, 255 - WheelPos * 3, 0);
+}

wokwi-led-ring/neopixel-uno/src/main.cpp

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