@dderevjanik/termux-api/src/scripts/termux-infrared-frequencies.ts

This library allows you to interact with your Android device from Node.js using termux-api

import { exec } from "child_process";

export interface InfraredFrequency {
  /**
   * The minimum carrier frequency in Hz.
   * @example 30000
   */
  min: number;
  /**
   * The maximum carrier frequency in Hz.
   * @example 30000
   */
  max: number;
}

/**
 * Query the infrared transmitter's supported carrier frequencies
 *
 * **Note:** This API can be used only on devices that have infrared transmitter.
 */
export async function infraredFrequencies(): Promise<InfraredFrequency[]> {
  return new Promise<InfraredFrequency[]>((resolve, reject) => {
    const command = `termux-infrared-frequencies`;
    exec(command, (error, stdout, stderr) => {
      if (error) {
        return reject(`Error: ${error.message}`);
      }
      if (stderr) {
        return reject(`Error: ${stderr}`);
      }
      const output = stdout.trim();
      const frequencies: InfraredFrequency[] = JSON.parse(output);
      return resolve(frequencies);
    });
  });
}