How to calibrate voltage/current measurement

If you have soldered the screenswitch and throttle cables doing the insane soldering you can use the screenswitch and throttle for calibrating the voltage/current measurement.

You have to compile a special hex files to calibrate the voltage, the current offset and the current itself.

To generate this hex file uncomment the following #define and compile the code.

// to generate the calibration software for using with throttle and screenswitch

define SETUP_TS

After that, load this hex for calibrating the voltage, the current offset and the current itself.

Don't forget to load a hex file compiled with the option disabled after calibration is ready.

If you don't have soldered the screenswitch and throttle cables, you need another way to calibrate the voltage/current measurement.

You need to solder one additional cable at the bottom of the minNAZAOSD as shown here:

Connect this to the signal pin of a free channel at your RC-RX.

Then you need 3 different hex files to calibrate the voltage, the current offset and the current itself.

To generate these 3 hex files go to the file OSD_Config.h and uncomment the following #defines step by step but only one per step to generate the 3 different hex files.

// to generate the three needed calibration software versions

//#define SETUP_VOLT_DIFF_RATIO

//#define SETUP_AMP_OFFSET

//#define SETUP_AMP_PER_VOLT

After that, load the needed hex for calibrating the voltage, the current offset and the current itself step by step.

Don't forget to load a hex file compiled with all three options disabled after calibration is ready.