feat: Add NeoPattern example and update API server functionality

- Add new NeoPattern example with pattern-based LED control
- Update ApiServer with enhanced functionality
- Modify neopixel example
- Update platformio configuration

examples/neopattern/NeoPattern.cpp

@@ -0,0 +1,470 @@
+/**
+ * Original NeoPattern code by Bill Earl
+ * https://learn.adafruit.com/multi-tasking-the-arduino-part-3/overview 
+ * 
+ * TODO 
+ * - cleanup the mess
+ * - fnc table for patterns to replace switch case
+ * 
+ * Custom modifications by 0x1d:
+ * - default OnComplete callback that sets pattern to reverse
+ * - separate animation update from timer; Update now updates directly, UpdateScheduled uses timer
+ */
+#ifndef __NeoPattern_INCLUDED__
+#define __NeoPattern_INCLUDED__
+
+#include <Adafruit_NeoPixel.h>
+
+using namespace std;
+
+// Pattern types supported:
+enum pattern
+{
+    NONE = 0,
+    RAINBOW_CYCLE = 1,
+    THEATER_CHASE = 2,
+    COLOR_WIPE = 3,
+    SCANNER = 4,
+    FADE = 5,
+    FIRE = 6
+};
+// Patern directions supported:
+enum direction
+{
+    FORWARD,
+    REVERSE
+};
+
+// NeoPattern Class - derived from the Adafruit_NeoPixel class
+class NeoPattern : public Adafruit_NeoPixel
+{
+  public:
+    // Member Variables:
+    pattern ActivePattern = RAINBOW_CYCLE; // which pattern is running
+    direction Direction = FORWARD;         // direction to run the pattern
+
+    unsigned long Interval = 150; // milliseconds between updates
+    unsigned long lastUpdate = 0; // last update of position
+
+    uint32_t Color1 = 0;
+    uint32_t Color2 = 0;      // What colors are in use
+    uint16_t TotalSteps = 32; // total number of steps in the pattern
+    uint16_t Index;           // current step within the pattern
+    uint16_t completed = 0;
+
+    // FIXME return current NeoPatternState
+    void (*OnComplete)(int); // Callback on completion of pattern
+
+    uint8_t *frameBuffer;
+    int bufferSize = 0;
+
+    // Constructor - calls base-class constructor to initialize strip
+    NeoPattern(uint16_t pixels, uint8_t pin, uint8_t type, void (*callback)(int))
+        : Adafruit_NeoPixel(pixels, pin, type)
+    {
+        frameBuffer = (uint8_t *)malloc(768);
+        OnComplete = callback;
+        TotalSteps = numPixels();
+        begin();
+    }
+
+    NeoPattern(uint16_t pixels, uint8_t pin, uint8_t type)
+        : Adafruit_NeoPixel(pixels, pin, type)
+    {
+        frameBuffer = (uint8_t *)malloc(768);
+        TotalSteps = numPixels();
+        begin();
+    }
+
+    void handleStream(uint8_t *data, size_t len)
+    {
+        //const uint16_t *data16 = (uint16_t *)data;
+        bufferSize = len;
+        memcpy(frameBuffer, data, len);
+    }
+
+    void drawFrameBuffer(int w, uint8_t *frame, int length)
+    {
+        for (int i = 0; i < length; i++)
+        {
+            uint8_t r = frame[i];
+            uint8_t g = frame[i + 1];
+            uint8_t b = frame[i + 2];
+            setPixelColor(i, r, g, b);
+        }
+    }
+
+    void onCompleteDefault(int pixels)
+    {
+        //Serial.println("onCompleteDefault");
+        // FIXME no specific code
+        if (ActivePattern == THEATER_CHASE)
+        {
+            return;
+        }
+        Reverse();
+        //Serial.println("pattern completed");
+    }
+
+    // Update the pattern
+    void Update()
+    {
+        switch (ActivePattern)
+        {
+        case RAINBOW_CYCLE:
+            RainbowCycleUpdate();
+            break;
+        case THEATER_CHASE:
+            TheaterChaseUpdate();
+            break;
+        case COLOR_WIPE:
+            ColorWipeUpdate();
+            break;
+        case SCANNER:
+            ScannerUpdate();
+            break;
+        case FADE:
+            FadeUpdate();
+            break;
+        case FIRE:
+            Fire(50, 120);
+            break;
+        default:
+            if (bufferSize > 0)
+            {
+                drawFrameBuffer(TotalSteps, frameBuffer, bufferSize);
+            }
+            break;
+        }
+    }
+
+    void UpdateScheduled()
+    {
+        if ((millis() - lastUpdate) > Interval) // time to update
+        {
+            lastUpdate = millis();
+            Update();
+        }
+    }
+
+    // Increment the Index and reset at the end
+    void Increment()
+    {
+        completed = 0;
+        if (Direction == FORWARD)
+        {
+            Index++;
+            if (Index >= TotalSteps)
+            {
+                Index = 0;
+                completed = 1;
+                if (OnComplete != NULL)
+                {
+                    OnComplete(numPixels()); // call the comlpetion callback
+                }
+                else
+                {
+                    onCompleteDefault(numPixels());
+                }
+            }
+        }
+        else // Direction == REVERSE
+        {
+            --Index;
+            if (Index <= 0)
+            {
+                Index = TotalSteps - 1;
+                completed = 1;
+                if (OnComplete != NULL)
+                {
+                    OnComplete(numPixels()); // call the comlpetion callback
+                }
+                else
+                {
+                    onCompleteDefault(numPixels());
+                }
+            }
+        }
+    }
+
+    // Reverse pattern direction
+    void Reverse()
+    {
+        if (Direction == FORWARD)
+        {
+            Direction = REVERSE;
+            Index = TotalSteps - 1;
+        }
+        else
+        {
+            Direction = FORWARD;
+            Index = 0;
+        }
+    }
+
+    // Initialize for a RainbowCycle
+    void RainbowCycle(uint8_t interval, direction dir = FORWARD)
+    {
+        ActivePattern = RAINBOW_CYCLE;
+        Interval = interval;
+        TotalSteps = 255;
+        Index = 0;
+        Direction = dir;
+    }
+
+    // Update the Rainbow Cycle Pattern
+    void RainbowCycleUpdate()
+    {
+        for (int i = 0; i < numPixels(); i++)
+        {
+            setPixelColor(i, Wheel(((i * 256 / numPixels()) + Index) & 255));
+        }
+        show();
+        Increment();
+    }
+
+    // Initialize for a Theater Chase
+    void TheaterChase(uint32_t color1, uint32_t color2, uint16_t interval, direction dir = FORWARD)
+    {
+        ActivePattern = THEATER_CHASE;
+        Interval = interval;
+        TotalSteps = numPixels();
+        Color1 = color1;
+        Color2 = color2;
+        Index = 0;
+        Direction = dir;
+    }
+
+    // Update the Theater Chase Pattern
+    void TheaterChaseUpdate()
+    {
+        for (int i = 0; i < numPixels(); i++)
+        {
+            if ((i + Index) % 3 == 0)
+            {
+                setPixelColor(i, Color1);
+            }
+            else
+            {
+                setPixelColor(i, Color2);
+            }
+        }
+        show();
+        Increment();
+    }
+
+    // Initialize for a ColorWipe
+    void ColorWipe(uint32_t color, uint8_t interval, direction dir = FORWARD)
+    {
+        ActivePattern = COLOR_WIPE;
+        Interval = interval;
+        TotalSteps = numPixels();
+        Color1 = color;
+        Index = 0;
+        Direction = dir;
+    }
+
+    // Update the Color Wipe Pattern
+    void ColorWipeUpdate()
+    {
+        setPixelColor(Index, Color1);
+        show();
+        Increment();
+    }
+
+    // Initialize for a SCANNNER
+    void Scanner(uint32_t color1, uint8_t interval)
+    {
+        ActivePattern = SCANNER;
+        Interval = interval;
+        TotalSteps = (numPixels() - 1) * 2;
+        Color1 = color1;
+        Index = 0;
+    }
+
+    // Update the Scanner Pattern
+    void ScannerUpdate()
+    {
+        for (int i = 0; i < numPixels(); i++)
+        {
+            if (i == Index) // Scan Pixel to the right
+            {
+                setPixelColor(i, Color1);
+            }
+            else if (i == TotalSteps - Index) // Scan Pixel to the left
+            {
+                setPixelColor(i, Color1);
+            }
+            else // Fading tail
+            {
+                setPixelColor(i, DimColor(getPixelColor(i)));
+            }
+        }
+        show();
+        Increment();
+    }
+
+    // Initialize for a Fade
+    void Fade(uint32_t color1, uint32_t color2, uint16_t steps, uint8_t interval, direction dir = FORWARD)
+    {
+        ActivePattern = FADE;
+        Interval = interval;
+        TotalSteps = steps;
+        Color1 = color1;
+        Color2 = color2;
+        Index = 0;
+        Direction = dir;
+    }
+
+    // Update the Fade Pattern
+    void FadeUpdate()
+    {
+        // Calculate linear interpolation between Color1 and Color2
+        // Optimise order of operations to minimize truncation error
+        uint8_t red = ((Red(Color1) * (TotalSteps - Index)) + (Red(Color2) * Index)) / TotalSteps;
+        uint8_t green = ((Green(Color1) * (TotalSteps - Index)) + (Green(Color2) * Index)) / TotalSteps;
+        uint8_t blue = ((Blue(Color1) * (TotalSteps - Index)) + (Blue(Color2) * Index)) / TotalSteps;
+
+        ColorSet(Color(red, green, blue));
+        show();
+        Increment();
+    }
+
+    // Calculate 50% dimmed version of a color (used by ScannerUpdate)
+    uint32_t DimColor(uint32_t color)
+    {
+        // Shift R, G and B components one bit to the right
+        uint32_t dimColor = Color(Red(color) >> 1, Green(color) >> 1, Blue(color) >> 1);
+        return dimColor;
+    }
+
+    // Set all pixels to a color (synchronously)
+    void ColorSet(uint32_t color)
+    {
+        for (int i = 0; i < numPixels(); i++)
+        {
+            setPixelColor(i, color);
+        }
+        show();
+    }
+
+    // Returns the Red component of a 32-bit color
+    uint8_t Red(uint32_t color)
+    {
+        return (color >> 16) & 0xFF;
+    }
+
+    // Returns the Green component of a 32-bit color
+    uint8_t Green(uint32_t color)
+    {
+        return (color >> 8) & 0xFF;
+    }
+
+    // Returns the Blue component of a 32-bit color
+    uint8_t Blue(uint32_t color)
+    {
+        return color & 0xFF;
+    }
+
+    // Input a value 0 to 255 to get a color value.
+    // The colours are a transition r - g - b - back to r.
+    uint32_t Wheel(uint8_t WheelPos)
+    {
+        //if(WheelPos == 0) return Color(0,0,0);
+        WheelPos = 255 - WheelPos;
+        if (WheelPos < 85)
+        {
+            return Color(255 - WheelPos * 3, 0, WheelPos * 3);
+        }
+        else if (WheelPos < 170)
+        {
+            WheelPos -= 85;
+            return Color(0, WheelPos * 3, 255 - WheelPos * 3);
+        }
+        else
+        {
+            WheelPos -= 170;
+            return Color(WheelPos * 3, 255 - WheelPos * 3, 0);
+        }
+    }
+    /**
+     * Effects from https://www.tweaking4all.com/hardware/arduino/adruino-led-strip-effects/ 
+     */
+    void Fire(int Cooling, int Sparking)
+    {
+        uint8_t heat[numPixels()];
+        int cooldown;
+
+        // Step 1.  Cool down every cell a little
+        for (int i = 0; i < numPixels(); i++)
+        {
+            cooldown = random(0, ((Cooling * 10) / numPixels()) + 2);
+
+            if (cooldown > heat[i])
+            {
+                heat[i] = 0;
+            }
+            else
+            {
+                heat[i] = heat[i] - cooldown;
+            }
+        }
+
+        // Step 2.  Heat from each cell drifts 'up' and diffuses a little
+        for (int k = numPixels() - 1; k >= 2; k--)
+        {
+            heat[k] = (heat[k - 1] + heat[k - 2] + heat[k - 2]) / 3;
+        }
+
+        // Step 3.  Randomly ignite new 'sparks' near the bottom
+        if (random(255) < Sparking)
+        {
+            int y = random(7);
+            heat[y] = heat[y] + random(160, 255);
+            //heat[y] = random(160,255);
+        }
+
+        // Step 4.  Convert heat to LED colors
+        for (int j = 0; j < numPixels(); j++)
+        {
+            setPixelHeatColor(j, heat[j]);
+        }
+
+        showStrip();
+    }
+
+    void setPixelHeatColor(int Pixel, uint8_t temperature)
+    {
+        // Scale 'heat' down from 0-255 to 0-191
+        uint8_t t192 = round((temperature / 255.0) * 191);
+
+        // calculate ramp up from
+        uint8_t heatramp = t192 & 0x3F; // 0..63
+        heatramp <<= 2;              // scale up to 0..252
+
+        // figure out which third of the spectrum we're in:
+        if (t192 > 0x80)
+        { // hottest
+            setPixel(Pixel, 255, 255, heatramp);
+        }
+        else if (t192 > 0x40)
+        { // middle
+            setPixel(Pixel, 255, heatramp, 0);
+        }
+        else
+        { // coolest
+            setPixel(Pixel, heatramp, 0, 0);
+        }
+    }
+
+    void setPixel(int Pixel, uint8_t red, uint8_t green, uint8_t blue)
+    {
+        setPixelColor(Pixel, Color(red, green, blue));
+    }
+    void showStrip()
+    {
+        show();
+    }
+};
+
+#endif

examples/neopattern/config.h

@@ -0,0 +1,31 @@
+#ifndef __DEVICE_CONFIG__
+#define __DEVICE_CONFIG__
+
+// Scheduler config
+#define _TASK_SLEEP_ON_IDLE_RUN
+#define _TASK_STD_FUNCTION
+#define _TASK_PRIORITY
+
+// Chip config
+#define SPROCKET_TYPE       "SPROCKET"
+#define SERIAL_BAUD_RATE    115200
+#define STARTUP_DELAY       1000
+
+// network config
+#define SPROCKET_MODE       1
+#define WIFI_CHANNEL        11
+#define AP_SSID             "sprocket"
+#define AP_PASSWORD         "th3r31sn0sp00n"
+#define STATION_SSID        "MyAP"
+#define STATION_PASSWORD    "th3r31sn0sp00n"
+#define HOSTNAME            "sprocket"
+#define CONNECT_TIMEOUT     10000
+
+// NeoPixel conig
+#define LED_STRIP_PIN D2
+#define LED_STRIP_LENGTH 8
+#define LED_STRIP_BRIGHTNESS 48
+#define LED_STRIP_UPDATE_INTERVAL 200
+#define LED_STRIP_DEFAULT_COLOR 100
+
+#endif

examples/neopattern/main.cpp

@@ -0,0 +1,252 @@
+#include <Arduino.h>
+#include <functional>
+#include <map>
+#include <vector>
+
+#include "Globals.h"
+#include "NodeContext.h"
+#include "NetworkManager.h"
+#include "ClusterManager.h"
+#include "ApiServer.h"
+#include "TaskManager.h"
+
+// Include the NeoPattern implementation from this example folder
+#include "NeoPattern.cpp"
+
+#ifndef LED_STRIP_PIN
+#define LED_STRIP_PIN 2
+#endif
+
+#ifndef LED_STRIP_LENGTH
+#define LED_STRIP_LENGTH 8
+#endif
+
+#ifndef LED_STRIP_BRIGHTNESS
+#define LED_STRIP_BRIGHTNESS 48
+#endif
+
+#ifndef LED_STRIP_UPDATE_INTERVAL
+#define LED_STRIP_UPDATE_INTERVAL 100
+#endif
+
+#ifndef LED_STRIP_TYPE
+#define LED_STRIP_TYPE (NEO_GRB + NEO_KHZ800)
+#endif
+
+class NeoPatternService {
+public:
+    NeoPatternService(NodeContext &ctx, TaskManager &taskMgr,
+                      uint16_t numPixels,
+                      uint8_t pin,
+                      uint8_t type)
+        : ctx(ctx), taskManager(taskMgr),
+          pixels(numPixels, pin, type),
+          updateIntervalMs(LED_STRIP_UPDATE_INTERVAL),
+          brightness(LED_STRIP_BRIGHTNESS) {
+        pixels.setBrightness(brightness);
+        pixels.show();
+
+        registerTasks();
+        setPatternByName("rainbow_cycle");
+    }
+
+    void registerApi(ApiServer &api) {
+        api.addEndpoint("/api/neopattern/status", HTTP_GET, [this](AsyncWebServerRequest *request) {
+            JsonDocument doc;
+            doc["pin"] = LED_STRIP_PIN;
+            doc["count"] = pixels.numPixels();
+            doc["interval_ms"] = updateIntervalMs;
+            doc["brightness"] = brightness;
+            doc["pattern"] = currentPatternName();
+            doc["total_steps"] = pixels.TotalSteps;
+            doc["color1"] = pixels.Color1;
+            doc["color2"] = pixels.Color2;
+            String json;
+            serializeJson(doc, json);
+            request->send(200, "application/json", json);
+        });
+
+        api.addEndpoint("/api/neopattern/patterns", HTTP_GET, [this](AsyncWebServerRequest *request) {
+            JsonDocument doc;
+            JsonArray arr = doc.to<JsonArray>();
+            for (auto &kv : patternSetters) arr.add(kv.first);
+            String json;
+            serializeJson(doc, json);
+            request->send(200, "application/json", json);
+        });
+
+        api.addEndpoint("/api/neopattern", HTTP_POST,
+            [this](AsyncWebServerRequest *request) {
+                if (request->hasParam("pattern", true)) {
+                    String name = request->getParam("pattern", true)->value();
+                    setPatternByName(name);
+                }
+
+                if (request->hasParam("interval_ms", true)) {
+                    unsigned long v = request->getParam("interval_ms", true)->value().toInt();
+                    if (v < 1) v = 1;
+                    updateIntervalMs = v;
+                    taskManager.setTaskInterval("neopattern_update", updateIntervalMs);
+                }
+
+                if (request->hasParam("brightness", true)) {
+                    int b = request->getParam("brightness", true)->value().toInt();
+                    if (b < 0) b = 0; if (b > 255) b = 255;
+                    setBrightness((uint8_t)b);
+                }
+
+                // Accept packed color ints or r,g,b triplets
+                if (request->hasParam("color", true)) {
+                    pixels.Color1 = (uint32_t)strtoul(request->getParam("color", true)->value().c_str(), nullptr, 0);
+                }
+                if (request->hasParam("color2", true)) {
+                    pixels.Color2 = (uint32_t)strtoul(request->getParam("color2", true)->value().c_str(), nullptr, 0);
+                }
+                if (request->hasParam("r", true) || request->hasParam("g", true) || request->hasParam("b", true)) {
+                    int r = request->hasParam("r", true) ? request->getParam("r", true)->value().toInt() : 0;
+                    int g = request->hasParam("g", true) ? request->getParam("g", true)->value().toInt() : 0;
+                    int b = request->hasParam("b", true) ? request->getParam("b", true)->value().toInt() : 0;
+                    pixels.Color1 = pixels.Color(r, g, b);
+                }
+                if (request->hasParam("r2", true) || request->hasParam("g2", true) || request->hasParam("b2", true)) {
+                    int r = request->hasParam("r2", true) ? request->getParam("r2", true)->value().toInt() : 0;
+                    int g = request->hasParam("g2", true) ? request->getParam("g2", true)->value().toInt() : 0;
+                    int b = request->hasParam("b2", true) ? request->getParam("b2", true)->value().toInt() : 0;
+                    pixels.Color2 = pixels.Color(r, g, b);
+                }
+
+                if (request->hasParam("total_steps", true)) {
+                    pixels.TotalSteps = request->getParam("total_steps", true)->value().toInt();
+                }
+
+                if (request->hasParam("direction", true)) {
+                    String dir = request->getParam("direction", true)->value();
+                    if (dir.equalsIgnoreCase("forward")) pixels.Direction = FORWARD;
+                    else if (dir.equalsIgnoreCase("reverse")) pixels.Direction = REVERSE;
+                }
+
+                JsonDocument resp;
+                resp["ok"] = true;
+                resp["pattern"] = currentPatternName();
+                resp["interval_ms"] = updateIntervalMs;
+                resp["brightness"] = brightness;
+                String json;
+                serializeJson(resp, json);
+                request->send(200, "application/json", json);
+            },
+            std::vector<ApiServer::ParamSpec>{
+                ApiServer::ParamSpec{ String("pattern"), false, String("body"), String("string"), patternNamesVector() },
+                ApiServer::ParamSpec{ String("interval_ms"), false, String("body"), String("number"), {}, String("100") },
+                ApiServer::ParamSpec{ String("brightness"), false, String("body"), String("number"), {}, String("50") },
+                ApiServer::ParamSpec{ String("color"), false, String("body"), String("color"), {} },
+                ApiServer::ParamSpec{ String("color2"), false, String("body"), String("color"), {} },
+                ApiServer::ParamSpec{ String("r"), false, String("body"), String("number"), {} },
+                ApiServer::ParamSpec{ String("g"), false, String("body"), String("number"), {} },
+                ApiServer::ParamSpec{ String("b"), false, String("body"), String("number"), {} },
+                ApiServer::ParamSpec{ String("r2"), false, String("body"), String("number"), {} },
+                ApiServer::ParamSpec{ String("g2"), false, String("body"), String("number"), {} },
+                ApiServer::ParamSpec{ String("b2"), false, String("body"), String("number"), {} },
+                ApiServer::ParamSpec{ String("total_steps"), false, String("body"), String("number"), {} },
+                ApiServer::ParamSpec{ String("direction"), false, String("body"), String("string"), { String("forward"), String("reverse") } },
+            }
+        );
+    }
+
+    void setBrightness(uint8_t b) {
+        brightness = b;
+        pixels.setBrightness(brightness);
+        pixels.show();
+    }
+
+private:
+    void registerTasks() {
+        taskManager.registerTask("neopattern_update", updateIntervalMs, [this]() { update(); });
+        taskManager.registerTask("neopattern_status_print", 10000, [this]() {
+            Serial.printf("[NeoPattern] pattern=%s interval=%lu ms brightness=%u\n",
+                          currentPatternName().c_str(), updateIntervalMs, brightness);
+        });
+    }
+
+    void registerPatterns() {
+        patternSetters["off"] = [this]() { pixels.ActivePattern = NONE; };
+        patternSetters["rainbow_cycle"] = [this]() { pixels.RainbowCycle(updateIntervalMs); };
+        patternSetters["theater_chase"] = [this]() { pixels.TheaterChase(pixels.Color1 ? pixels.Color1 : pixels.Color(127,127,127), pixels.Color2, updateIntervalMs); };
+        patternSetters["color_wipe"] = [this]() { pixels.ColorWipe(pixels.Color1 ? pixels.Color1 : pixels.Color(255,0,0), updateIntervalMs); };
+        patternSetters["scanner"] = [this]() { pixels.Scanner(pixels.Color1 ? pixels.Color1 : pixels.Color(0,0,255), updateIntervalMs); };
+        patternSetters["fade"] = [this]() { pixels.Fade(pixels.Color1, pixels.Color2, pixels.TotalSteps ? pixels.TotalSteps : 32, updateIntervalMs); };
+        patternSetters["fire"] = [this]() { pixels.ActivePattern = FIRE; pixels.Interval = updateIntervalMs; };
+    }
+
+    std::vector<String> patternNamesVector() {
+        if (patternSetters.empty()) registerPatterns();
+        std::vector<String> v;
+        v.reserve(patternSetters.size());
+        for (const auto &kv : patternSetters) v.push_back(kv.first);
+        return v;
+    }
+
+    String currentPatternName() {
+        switch (pixels.ActivePattern) {
+            case NONE: return String("off");
+            case RAINBOW_CYCLE: return String("rainbow_cycle");
+            case THEATER_CHASE: return String("theater_chase");
+            case COLOR_WIPE: return String("color_wipe");
+            case SCANNER: return String("scanner");
+            case FADE: return String("fade");
+            case FIRE: return String("fire");
+        }
+        return String("off");
+    }
+
+    void setPatternByName(const String &name) {
+        if (patternSetters.empty()) registerPatterns();
+        auto it = patternSetters.find(name);
+        if (it != patternSetters.end()) {
+            pixels.Index = 0;
+            pixels.Direction = FORWARD;
+            it->second();
+        }
+    }
+
+    void update() {
+        pixels.Update();
+    }
+
+private:
+    NodeContext &ctx;
+    TaskManager &taskManager;
+    NeoPattern pixels;
+    unsigned long updateIntervalMs;
+    uint8_t brightness;
+    std::map<String, std::function<void()>> patternSetters;
+};
+
+NodeContext ctx({
+    {"app", "neopattern"},
+    {"device", "light"},
+    {"pixels", String(LED_STRIP_LENGTH)},
+    {"pin", String(LED_STRIP_PIN)}
+});
+NetworkManager network(ctx);
+TaskManager taskManager(ctx);
+ClusterManager cluster(ctx, taskManager);
+ApiServer apiServer(ctx, taskManager, ctx.config.api_server_port);
+NeoPatternService neoService(ctx, taskManager, LED_STRIP_LENGTH, LED_STRIP_PIN, LED_STRIP_TYPE);
+
+void setup() {
+    Serial.begin(115200);
+
+    network.setupWiFi();
+
+    taskManager.initialize();
+
+    apiServer.begin();
+    neoService.registerApi(apiServer);
+
+    taskManager.printTaskStatus();
+}
+
+void loop() {
+    taskManager.execute();
+    yield();
+}

examples/neopixel/main.cpp

@@ -135,8 +135,8 @@ public:
       },
       std::vector<ApiServer::ParamSpec>{
         ApiServer::ParamSpec{ String("pattern"), false, String("body"), String("string"), patternNamesVector() },
-        ApiServer::ParamSpec{ String("interval_ms"), false, String("body"), String("number"), {} },
-        ApiServer::ParamSpec{ String("brightness"), false, String("body"), String("number"), {} },
+        ApiServer::ParamSpec{ String("interval_ms"), false, String("body"), String("number"), {}, String("100") },
+        ApiServer::ParamSpec{ String("brightness"), false, String("body"), String("number"), {}, String("50") },
         ApiServer::ParamSpec{ String("r"), false, String("body"), String("number"), {} },
         ApiServer::ParamSpec{ String("g"), false, String("body"), String("number"), {} },
         ApiServer::ParamSpec{ String("b"), false, String("body"), String("number"), {} },

include/ApiServer.h

@@ -26,6 +26,7 @@ public:
         String location; // "query" | "body" | "path" | "header"
         String type;     // e.g. "string", "number", "boolean"
         std::vector<String> values; // optional allowed values
+        String defaultValue; // optional default value (stringified)
     };
     struct EndpointCapability {
         String uri;

platformio.ini

@@ -92,3 +92,35 @@ build_src_filter =
     +<examples/neopixel/*.cpp>
     +<src/*.c>
     +<src/*.cpp>
+
+[env:esp01_1m_neopattern]
+platform = platformio/espressif8266@^4.2.1
+board = esp01_1m
+framework = arduino
+upload_speed = 115200
+monitor_speed = 115200
+board_build.partitions = partitions_ota_1M.csv
+board_build.flash_mode = dout
+board_build.flash_size = 1M
+lib_deps = ${common.lib_deps}
+    adafruit/Adafruit NeoPixel@^1.15.1
+build_flags = -DLED_STRIP_PIN=2
+build_src_filter = 
+    +<examples/neopattern/main.cpp>
+    +<src/*.c>
+    +<src/*.cpp>
+
+[env:d1_mini_neopattern]
+platform = platformio/espressif8266@^4.2.1
+board = d1_mini
+framework = arduino
+upload_speed = 115200
+monitor_speed = 115200
+board_build.flash_mode = dio
+board_build.flash_size = 4M
+lib_deps = ${common.lib_deps}
+    adafruit/Adafruit NeoPixel@^1.15.1
+build_src_filter = 
+    +<examples/neopattern/main.cpp>
+    +<src/*.c>
+    +<src/*.cpp>

src/ApiServer.cpp

@@ -365,6 +365,9 @@ void ApiServer::onCapabilitiesRequest(AsyncWebServerRequest *request) {
                         allowed.add(v);
                     }
                 }
+                if (ps.defaultValue.length() > 0) {
+                    p["default"] = ps.defaultValue;
+                }
             }
         }
     }