kithub
/
arduino_esp32_a2dp
1
1
Fork 0
Code Issues Pull Requests Packages Projects Releases Wiki Activity

変化をゆっくり

This commit is contained in:
Koichi Ito 2026-08-17 21:15:10 +09:00
parent 9f28dc5d69
commit b41e20f5a2
1 changed files with 29 additions and 5 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

34
firmware/firmware.ino
View File

@ -12,10 +12,12 @@ const uint32_t ws2812bColors[] = {
0x0000FF, 0x4B0082, 0x8F00FF
};
constexpr uint8_t WS2812B_COLOR_COUNT = sizeof(ws2812bColors) / sizeof(ws2812bColors[0]);
constexpr unsigned long WS2812B_INTERVAL_MS = 500;
constexpr unsigned long WS2812B_INTERVAL_MS = 30;
constexpr unsigned long WS2812B_TRANSITION_MS = 3000;
bool isPlaying = false;
uint8_t ws2812bColorIndex = 0;
unsigned long lastWs2812bUpdate = 0;
unsigned long ws2812bTransitionStart = 0;
// I2C接続のOLED設定 (SSD1306 128x64)
U8G2_SSD1306_128X64_NONAME_F_HW_I2C u8g2(U8G2_R0, /* reset=*/ U8X8_PIN_NONE);
@ -89,9 +91,14 @@ void volume_changed_callback(int volume) {
updateDisplay();
}
void audio_state_changed_callback(esp_a2d_audio_state_t state) {
void audio_state_changed_callback(esp_a2d_audio_state_t state, void *) {
isPlaying = (state == ESP_A2D_AUDIO_STATE_STARTED);
if (isPlaying) {
ws2812bTransitionStart = millis();
lastWs2812bUpdate = ws2812bTransitionStart;
}
if (!isPlaying) {
ws2812bColorIndex = 3;
ws2812b.setPixelColor(0, ws2812bColors[ws2812bColorIndex]);
@ -145,9 +152,26 @@ void setup() {
void loop() {
if (isPlaying && millis() - lastWs2812bUpdate >= WS2812B_INTERVAL_MS) {
lastWs2812bUpdate = millis();
ws2812bColorIndex = (ws2812bColorIndex + 1) % WS2812B_COLOR_COUNT;
ws2812b.setPixelColor(0, ws2812bColors[ws2812bColorIndex]);
unsigned long now = millis();
lastWs2812bUpdate = now;
unsigned long transitionElapsed = now - ws2812bTransitionStart;
if (transitionElapsed >= WS2812B_TRANSITION_MS) {
ws2812bColorIndex = (ws2812bColorIndex + transitionElapsed / WS2812B_TRANSITION_MS)
% WS2812B_COLOR_COUNT;
ws2812bTransitionStart = now;
transitionElapsed = 0;
}
uint8_t nextColorIndex = (ws2812bColorIndex + 1) % WS2812B_COLOR_COUNT;
uint32_t currentColor = ws2812bColors[ws2812bColorIndex];
uint32_t nextColor = ws2812bColors[nextColorIndex];
uint8_t red = ((currentColor >> 16) * (WS2812B_TRANSITION_MS - transitionElapsed)
+ (nextColor >> 16) * transitionElapsed) / WS2812B_TRANSITION_MS;
uint8_t green = (((currentColor >> 8) & 0xFF) * (WS2812B_TRANSITION_MS - transitionElapsed)
+ ((nextColor >> 8) & 0xFF) * transitionElapsed) / WS2812B_TRANSITION_MS;
uint8_t blue = ((currentColor & 0xFF) * (WS2812B_TRANSITION_MS - transitionElapsed)
+ (nextColor & 0xFF) * transitionElapsed) / WS2812B_TRANSITION_MS;
ws2812b.setPixelColor(0, red, green, blue);
ws2812b.show();
}
}