Does the Perimeter Sender's charge-current sensor have to be calibrated?

[robind]

I just noticed that the sender software has an option to calibrate the INA169 charge current in some way.

I haven't found any documentation explaining what this is for, or how to perform this calibration.
I'm guessing that it's NOT related to the perimeter signal, and only related to the detection of the robot in the charging station.
Is that correct?

Why does the Azurit software no longer have a message explaining that the calibration is an option https://github.com/Ardumower/ardumower/blob/master/code/sender/sender.ino#L229
Though Raindancer still has this option: https://github.com/kwrtz/Raindancer/blob/master/code/sender/sender.ino#L227

Any thoughts on this topic?

Thank you

 

[wolodk]

I have 2 Ardumower's runnning - 1 with Azurit on PCB 1.2 and one with Raindancer on PCB 1.3. For both firmwares i did not have to calibrate the INA. Both are working fine for me with 10V on the DC-DC step down and 10 Ohm resistor for the wire fence. Maybe Raindancer has the option in the code for debugging purposes.

Regards
Wolfgang

 

[robind]

Thanks. I got the Raindancer software running on my ArduMower last night, and initial tests seem to show that my ArduMower can hear the perimeter signal from anywhere in my lawn. Yay!

I am planning on running it on automatic (with the mower motor turned off) today, and see if we're ready to cut.

Exciting times.