import { sleep } from "mikro/sleep";
import { Uart } from "mikro/uart";

// UART loopback example for ESP32C6: connect TX (GPIO 17) to RX (GPIO 16) with a jumper wire.
// Change TX_PIN / RX_PIN to match your board.
const TX_PIN = 16;
const RX_PIN = 17;

await sleep(2000);
const uart = Uart(1, { tx: TX_PIN, rx: RX_PIN, baudRate: 115200 }).orPanic("Failed to start UART");

const message = new TextEncoder().encode("Hello from UART!\n");
uart.write(message).orPanic("Failed to write");

const reader = uart.read();

if (!reader.ok) {
  console.error("Failed to start reading:", reader.error);
} else {
  // Give data a moment to loop back
  await sleep(1000);
  for await (const chunk of reader.value) {
    if (!chunk.ok) {
      console.error("UART read error:", chunk.error);
      break;
    }
    console.log("Received: %s", new TextDecoder().decode(chunk.value));
  }
}

uart.end();
console.log("Done!");