RaspberryPico-Javascript-hc05/index.html at master · printf-hoven/RaspberryPico-Javascript-hc05 · GitHub

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<!doctype html>

<html lang="en">

<head>
  <meta charset="utf-8">

  <meta name="viewport" content="width=device-width, initial-scale=1">

  <title>Raspberry Pi hc05 Interface</title>

  <link href="https://cdn.jsdelivr.net/npm/bootstrap@5.3.3/dist/css/bootstrap.min.css" rel="stylesheet" integrity="sha384-QWTKZyjpPEjISv5WaRU9OFeRpok6YctnYmDr5pNlyT2bRjXh0JMhjY6hW+ALEwIH" crossorigin="anonymous">

  <script type="text/javascript" src="rpi_uart_comm.js"></script>

  <link rel="stylesheet" href="https://cdn.jsdelivr.net/npm/bootstrap-icons@1.11.3/font/bootstrap-icons.min.css" />

</head>

<body>

  <main class="m-3">

    <section class="text-center">

      <button id="btn_connect_uart" class="btn btn-primary">Start Connection</button>

      <button id="btn_on_off" hidden data-state="0" class="btn btn-primary">Turn ON the LED</button>

    </section>

    <section class="font-monospace" style="font-size:0.8rem">

      <ul class="list-group list-group-flush" id="data"></ul>

    </section>

  </main>

  <script type="text/javascript">

    const ol_data = document.getElementById("data");

    const btn_connect_uart = document.getElementById("btn_connect_uart");

    const btn_on_off = document.getElementById("btn_on_off");

    let prev_li;

    let rpi_uart_comm = new RPIUARTComm();

    function set_ui(state) {

      switch (state) {

        case RPIUARTComm.state.stopped: {

          btn_connect_uart.hidden = false;
          btn_on_off.hidden = true;

        }
          break;

        case RPIUARTComm.state.unavailable_or_error:
        case RPIUARTComm.state.starting: {

          btn_connect_uart.hidden = true;
          btn_on_off.hidden = true;

        }
          break;

        case RPIUARTComm.state.running: {

          btn_connect_uart.hidden = true;
          btn_on_off.hidden = false;
          rpi_uart_comm.write_to_UART(/*query state*/50);

        }
          break;

        default: break;
      }
    }

    function render_log(msg) {

      if (!msg) return;

      if (msg == "1") {

        btn_on_off.innerHTML = "Turn OFF the LED";

        btn_on_off.dataset.state = "1";

        msg = "LED is ON";

      } else if (msg == "0") {

        btn_on_off.innerHTML = "Turn ON the LED";

        btn_on_off.dataset.state = "0";

        msg = "LED is OFF";
      }

      const new_li = document.createElement("li");

      new_li.classList.add("list-group-item", "text-wrap", "text-info", "fw-bold", "blink");

      new_li.textContent = msg;

      ol_data.prepend(new_li);

      if (prev_li) {

        prev_li.classList.remove("text-info", "fw-bold", "blink");

        prev_li.classList.add("text-muted");

      }

      if (ol_data.childElementCount > 10) {

        ol_data.removeChild(ol_data.lastChild);
      }


      prev_li = new_li;
    }

    document.addEventListener("DOMContentLoaded", (event) => {

      document.addEventListener('hovendatareceived', (e) => render_log(e.detail.text));

      document.addEventListener('hovenstate', (e) => set_ui(e.detail));

      btn_connect_uart.addEventListener("click", () => rpi_uart_comm.connect_uart());

      btn_on_off.addEventListener("click", (e) => { rpi_uart_comm.write_to_UART(e.currentTarget.dataset.state == '0' ? /*1*/49 : /*0*/48); });

    });

  </script>

</body>

</html>