private void timer1_Tick(object sender, EventArgs e)
        {
            string hardwareName = "";
            float temp = 0;
            byte count = 0, gpu_temp_count = 0, gpu_load_count=0;
            float totalLoad = 0, load1 = 0, load2 = 0, load3 = 0, load4 = 0;
            float[] GpuTemps = new float[NGPUsCount];
            float[] GpuLoads = new float[NGPUsCount * 5]; // five readings for each GPU;
            List<float> GPUTempsList = new List<float>();
            List<float> GPULoadsList = new List<float>();


            hardwareElements = "";

            // first coung gpus


            // display info
            hardwareElements += "No of Nvidia GPUs ";
            hardwareElements += NGPUsCount;
            hardwareElements += Environment.NewLine;

            // get data
            foreach (var hardwareItem in myComputer.Hardware)
            {
                hardwareItem.Update();
                hardwareElements += hardwareItem.Name;
                hardwareElements += Environment.NewLine;

                // create storage for gpu data

                // get Nvidia GPU data
                if (hardwareItem.HardwareType == HardwareType.GpuNvidia)
                {

                    foreach (var sensor in hardwareItem.Sensors)
                    {
                        if (sensor.SensorType == SensorType.Temperature)
                        {

                            hardwareElements += "Temp ";
                            hardwareElements += sensor.Value;
                            hardwareElements += "  ";
                            hardwareElements += Environment.NewLine;
                            GpuTemps[gpu_temp_count] = sensor.Value.Value;
                            GPUTempsList.Add(sensor.Value.Value);
                            gpu_temp_count++;


                        }

                        else if (sensor.SensorType == SensorType.Load)
                        {

                            hardwareElements += "Load ";
                            hardwareElements += sensor.Value;
                            hardwareElements += "%  ";

                            hardwareElements += Environment.NewLine;
                            GpuLoads[gpu_load_count] = sensor.Value.Value;
                            GPULoadsList.Add(sensor.Value.Value);
                            gpu_load_count++;
                        }
                    }

                }



                if (hardwareItem.HardwareType == HardwareType.CPU)
                {
                    hardwareItem.Update();
                    foreach (IHardware subHardware in hardwareItem.SubHardware)
                    {
                        subHardware.Update();

                    }

                    foreach (var name in hardwareItem.Name)
                    {
                        hardwareName += name;
                    }

                    foreach (var sensor in hardwareItem.Sensors)
                    {
                        if (sensor.SensorType == SensorType.Temperature)
                        {
                            temp = sensor.Value.Value;
                        }

                        else if (sensor.SensorType == SensorType.Load)
                        {
                            count++;
                            switch (count)
                            {
                                case 1: load1 = sensor.Value.Value; break;
                                case 2: load2 = sensor.Value.Value; break;
                                case 3: load3 = sensor.Value.Value; break;
                                case 4: load4 = sensor.Value.Value; break;
                                case 5: totalLoad = sensor.Value.Value; break;

                            }

                        }
                    }

                    label_hardwareName.Text = "Processor: " + hardwareName;

                    progressBar_totalLoad.Value = Convert.ToInt32(Math.Round(totalLoad));
                    progressBar_core1Load.Value = Convert.ToInt32(Math.Round(load1));
                    progressBar_core2Load.Value = Convert.ToInt32(Math.Round(load2));
                    progressBar_core3Load.Value = Convert.ToInt32(Math.Round(load3));
                    progressBar_core4Load.Value = Convert.ToInt32(Math.Round(load4));

                    label_TotalLoad.Text = string.Format("{0:0.00}", totalLoad);
                    label_core1Load.Text = string.Format("{0:0.00}", load1);
                    label_core2Load.Text = string.Format("{0:0.00}", load2);
                    label_core3Load.Text = string.Format("{0:0.00}", load3);
                    label_core4Load.Text = string.Format("{0:0.00}", load4);

                    progressBar_cpuTemp.Value = Convert.ToInt32(Math.Round(temp));
                    label_cpuTemp.Text = string.Format("{0:0.00} C", temp);



                    if (serialPort1.IsOpen)
                    {
                        serialPort1.Write(temp + "\n");
                    }



                }
                for (var i = 0; i < GPUTempsList.Count(); i++)
                {
                    hardwareElements += Environment.NewLine;
                    hardwareElements += "GPU_";
                    hardwareElements += i;
                    hardwareElements += ' ';
                    hardwareElements += GPUTempsList[i].ToString();
                    hardwareElements += ' ';
                    hardwareElements += GPULoadsList[i].ToString();
                    hardwareElements += ' ';
                    hardwareElements += GPULoadsList[i + 1].ToString();
                    hardwareElements += ' ';
                    hardwareElements += GPULoadsList[i + 2].ToString();
                    hardwareElements += ' ';
                    hardwareElements += GPULoadsList[i + 3].ToString();
                    hardwareElements += ' ';
                    hardwareElements += GPULoadsList[i + 4].ToString();
                    hardwareElements += Environment.NewLine;
                }



            }
            textBox_info.Text = hardwareElements;

        }