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7色変化

This commit is contained in:
Koichi Ito 2026-08-17 20:57:25 +09:00
parent 37dd61b229
commit 9f28dc5d69
1 changed files with 30 additions and 4 deletions
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34
firmware/firmware.ino
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@ -4,9 +4,18 @@
#include <Adafruit_NeoPixel.h>
// WS2812B設定
constexpr uint8_t WS2812B_PIN = 13;
constexpr uint8_t WS2812B_PIN = 16;
constexpr uint16_t WS2812B_COUNT = 1;
Adafruit_NeoPixel ws2812b(WS2812B_COUNT, WS2812B_PIN, NEO_GRB + NEO_KHZ800);
const uint32_t ws2812bColors[] = {
0xFF0000, 0xFF8000, 0xFFFF00, 0x00FF00,
0x0000FF, 0x4B0082, 0x8F00FF
};
constexpr uint8_t WS2812B_COLOR_COUNT = sizeof(ws2812bColors) / sizeof(ws2812bColors[0]);
constexpr unsigned long WS2812B_INTERVAL_MS = 500;
bool isPlaying = false;
uint8_t ws2812bColorIndex = 0;
unsigned long lastWs2812bUpdate = 0;
// I2C接続のOLED設定 (SSD1306 128x64)
U8G2_SSD1306_128X64_NONAME_F_HW_I2C u8g2(U8G2_R0, /* reset=*/ U8X8_PIN_NONE);
@ -80,13 +89,23 @@ void volume_changed_callback(int volume) {
updateDisplay();
}
void audio_state_changed_callback(esp_a2d_audio_state_t state) {
isPlaying = (state == ESP_A2D_AUDIO_STATE_STARTED);
if (!isPlaying) {
ws2812bColorIndex = 3;
ws2812b.setPixelColor(0, ws2812bColors[ws2812bColorIndex]);
ws2812b.show();
}
}
void setup() {
Serial.begin(115200);
// WS2812Bを緑で点灯
ws2812b.begin();
ws2812b.setBrightness(255);
ws2812b.setPixelColor(0, ws2812b.Color(0, 255, 0));
ws2812b.setPixelColor(0, ws2812bColors[3]);
ws2812b.show();
// SDAをGPIO 19、SCLをGPIO 32 に設定
@ -100,7 +119,7 @@ void setup() {
// 初期画面
u8g2.clearBuffer();
u8g2.setFont(u8g2_font_unifont_t_japanese1);
u8g2.drawUTF8(0, 20, "BTスピーカー5.2");
u8g2.drawUTF8(0, 20, "BTスピーカー5.3");
u8g2.setFont(u8g2_font_6x10_tf);
u8g2.drawStr(0, 40, "Ready...");
u8g2.sendBuffer();
@ -118,10 +137,17 @@ void setup() {
// コールバック登録
a2dp_sink.set_avrc_metadata_callback(avrc_metadata_callback);
a2dp_sink.set_on_volumechange(volume_changed_callback);
a2dp_sink.set_on_audio_state_changed(audio_state_changed_callback);
// Bluetooth起動
a2dp_sink.start("BT_Speaker5.2");
a2dp_sink.start("BT_Speaker5.3");
}
void loop() {
if (isPlaying && millis() - lastWs2812bUpdate >= WS2812B_INTERVAL_MS) {
lastWs2812bUpdate = millis();
ws2812bColorIndex = (ws2812bColorIndex + 1) % WS2812B_COLOR_COUNT;
ws2812b.setPixelColor(0, ws2812bColors[ws2812bColorIndex]);
ws2812b.show();
}
}