Add rawled bit-bang command, restore FastLED

src/pixel_stomp_mux.cpp

@@ -5,7 +5,6 @@
 
 PixelStompMux::PixelStompMux(uint8_t dat, uint8_t ld, uint8_t clk, uint8_t di)
     : pin_dat(dat), pin_ld(ld), pin_clk(clk), pin_di(di),
-      strip(NUM_LEDS, dat, NEO_GRB + NEO_KHZ800),
       last_button_state(0) {
 }
 
@@ -19,9 +18,10 @@ void PixelStompMux::begin() {
 
     delay(100);
 
-    strip.begin();
-    strip.setBrightness(128);
-    strip.show();
+    FastLED.addLeds<WS2812, 9, GRB>(leds, NUM_LEDS);
+    FastLED.setBrightness(128);
+    fill_solid(leds, NUM_LEDS, CRGB::Black);
+    FastLED.show();
 
     Serial.printf("[MUX] Init DAT=%d LD=%d CLK=%d DI=%d\n",
                   pin_dat, pin_ld, pin_clk, pin_di);
@@ -58,23 +58,21 @@ bool PixelStompMux::is_button_pressed(uint8_t index) {
 
 void PixelStompMux::set_led_color(uint8_t index, uint8_t r, uint8_t g, uint8_t b) {
     if (index >= NUM_LEDS) return;
-    strip.setPixelColor(index, r, g, b);
+    leds[index] = CRGB(r, g, b);
 }
 
 void PixelStompMux::set_led_brightness(uint8_t brightness) {
-    strip.setBrightness(brightness);
+    FastLED.setBrightness(brightness);
 }
 
 void PixelStompMux::clear_all() {
-    for (int i = 0; i < NUM_LEDS; i++) {
-        strip.setPixelColor(i, 0, 0, 0);
-    }
-    strip.show();
+    fill_solid(leds, NUM_LEDS, CRGB::Black);
+    FastLED.show();
     Serial.println("[MUX] LEDs cleared");
 }
 
 void PixelStompMux::show() {
-    strip.show();
+    FastLED.show();
 }
 
 void PixelStompMux::dump() {
@@ -92,7 +90,7 @@ void PixelStompMux::dump() {
 }
 
 void PixelStompMux::probe() {
-    Serial.println("[MUX] === Hardware Probe (NeoPixel) ===");
+    Serial.println("[MUX] === Hardware Probe ===");
 
     for (int round = 0; round < 5; round++) {
         Serial.printf("--- Round %d ---\n", round);
@@ -123,12 +121,12 @@ void PixelStompMux::probe() {
     }
 
     Serial.println("  LED test: pixel 0 RED (max brightness)...");
-    strip.setBrightness(255);
-    strip.setPixelColor(0, 255, 0, 0);
-    strip.show();
+    leds[0] = CRGB(255, 0, 0);
+    FastLED.setBrightness(255);
+    FastLED.show();
     delay(2000);
-    strip.setPixelColor(0, 0, 0, 0);
-    strip.show();
+    leds[0] = CRGB::Black;
+    FastLED.show();
 
     Serial.println("[MUX] === Probe Complete ===");
 }