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@caa45040(caa45040)

[構想編(妄想)]Arduino Modulino Buzzer(STM32C011)もどきを作って遊ぶ1

Last updated at Posted at 2025-10-24

目的

  • I2Cのブザーを作って自己満足する

仕様

  • STM32C011F4P6を使う
  • I2Cを使う
  • I2Cアドレスは、0x1e
  • I2Cスレーブ
  • データ長は、8バイト
  • 前半4バイトは、周波数:後半4バイトは、鳴る時間
  • int、2個の構造体を使う
  • PWM 50%:50%で周波数を作る
  • データを受信したら即時、割り込みでPWMに反映
  • 設定時間になったら鳴りやんで、無限ループ
  • 時間を比較して0または、マイナスになったら周波数をほぼ0にしてループ

そんな、かんじ?

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