text/microsoft-resx 2.0 System.Resources.ResXResourceReader, System.Windows.Forms, Version=2.0.0.0, Culture=neutral, PublicKeyToken=b77a5c561934e089 System.Resources.ResXResourceWriter, System.Windows.Forms, Version=2.0.0.0, Culture=neutral, PublicKeyToken=b77a5c561934e089 Voltage sensor calibration: To calibrate your sensor, use a multimeter to measure the voltage coming out of your ESC's battery-elimination circuit (these are black and red wires in the three-wire cable that is powering your APM board). Then subtract 0.3v from that value and enter it in field #1 at left.