/// <summary>
/// Get battery profile
/// </summary>
/// <returns>Battery profile</returns>
public BatteryProfile GetBatteryProfile()
{
var batteryProfile = new BatteryProfile();
var response = _piJuice.ReadCommand(PiJuiceCommand.BatteryProfile, 14);
batteryProfile.Capacity = new ElectricCharge(BinaryPrimitives.ReadInt16LittleEndian(response), ElectricChargeUnit.MilliampereHour);
batteryProfile.ChargeCurrent = new ElectricCurrent(response[2] * 75 + 550, ElectricCurrentUnit.Milliampere);
batteryProfile.TerminationCurrent = new ElectricCurrent(response[3] * 50 + 50, ElectricCurrentUnit.Milliampere);
batteryProfile.RegulationVoltage = new ElectricPotential(response[4] * 20 + 3500, ElectricPotentialUnit.Millivolt);
batteryProfile.CutOffVoltage = new ElectricPotential(response[5] * 20, ElectricPotentialUnit.Millivolt);
batteryProfile.TemperatureCold = new Temperature(response[6], TemperatureUnit.DegreeCelsius);
batteryProfile.TemperatureCool = new Temperature(response[7], TemperatureUnit.DegreeCelsius);
batteryProfile.TemperatureWarm = new Temperature(response[8], TemperatureUnit.DegreeCelsius);
batteryProfile.TemperatureHot = new Temperature(response[9], TemperatureUnit.DegreeCelsius);
batteryProfile.NegativeTemperatureCoefficientB = (response[11] << 8) | response[10];
batteryProfile.NegativeTemperatureCoefficientResistance = new ElectricResistance(((response[13] << 8) | response[12]) * 10, ElectricResistanceUnit.Ohm);
return(batteryProfile);
}
private void ExportButton_Click(object sender, EventArgs e)
{
string filePath;
using (var sf = new SaveFileDialog {
Filter = FileFilters.XmlFilter
})
{
if (sf.ShowDialog() != DialogResult.OK)
{
return;
}
filePath = sf.FileName;
}
try
{
using (var fs = File.Open(filePath, FileMode.Create))
{
var data = new BatteryProfile
{
Cutoff = CutoffUpDown.Value,
Points = m_curveControls.Select(x => new BatteryProfilePoint
{
Percent = (byte)x.PercentsUpDown.Value,
Voltage = x.VoltsUpDown.Value
}).ToArray()
};
Serializer.Write(data, fs);
}
}
catch (Exception ex)
{
Trace.Warn(ex);
InfoBox.Show("An error occurred during battery profile export.");
}
}
/// <summary>
/// Set a custom battery profile
/// </summary>
/// <param name="batteryProfile">Custom battery profile</param>
public void SetCustomBatteryProfile(BatteryProfile batteryProfile)
{
var data = new byte[14];
data[0] = (byte)((int)(batteryProfile.Capacity.MilliampereHours) & 0xFF);
data[1] = (byte)(((int)(batteryProfile.Capacity.MilliampereHours) >> 8) & 0xFF);
data[2] = (byte)Math.Round((batteryProfile.ChargeCurrent.Milliamperes - 550) / 75, 0, MidpointRounding.AwayFromZero);
data[3] = (byte)Math.Round((batteryProfile.TerminationCurrent.Milliamperes - 50) / 50, 0, MidpointRounding.AwayFromZero);
data[4] = (byte)Math.Round((batteryProfile.RegulationVoltage.Millivolts - 3500) / 20, 0, MidpointRounding.AwayFromZero);
data[5] = (byte)Math.Round(batteryProfile.CutOffVoltage.Millivolts / 20, 0, MidpointRounding.AwayFromZero);
data[6] = (byte)batteryProfile.TemperatureCold.DegreesCelsius;
data[7] = (byte)batteryProfile.TemperatureCool.DegreesCelsius;
data[8] = (byte)batteryProfile.TemperatureWarm.DegreesCelsius;
data[9] = (byte)batteryProfile.TemperatureHot.DegreesCelsius;
data[10] = (byte)(batteryProfile.NegativeTemperatureCoefficientB & 0xFF);
data[11] = (byte)((batteryProfile.NegativeTemperatureCoefficientB >> 8) & 0xFF);
int ntcResistance = (int)batteryProfile.NegativeTemperatureCoefficientResistance.Ohms / 10;
data[12] = (byte)(ntcResistance & 0xFF);
data[13] = (byte)((ntcResistance >> 8) & 0xFF);
_piJuice.WriteCommandVerify(PiJuiceCommand.BatteryProfile, data);
}