Failed to read serial_number using ASCII protocol

Support
1

Hi,

I’ve been trying to identify 3 different odrives by checking their serial numbers. However, I have problem reading the serial numbers with ASCII protocol. I sent

"r serial_number\n"

and received

"lu\r\n"

no matter which board it is.

20210816123501
20210816123501815×403 35.5 KB

1629089151(1)

I know it is quite simple in python by just

odrv0 = odrive.find_any(serial_number="XXX")

but I am working in c++. How should I do it?

Thanks!

2

lu is a formattting code (unsigned long). But you need %lu. Did someone forget a % somewhere in your code?

3

What version of the firmware are you using? Is this an ODrive purchased from the official shop, or one of the fake ones?

You can also try the i command to get the serial number.

4

Thanks towen! The i command returns me the correct serial number!