ArdyNT
Full Member level 2
I found it. It's not the code, it's the hardware. I just build a new power supply with higher current rating and everything is fine now.
My stepper motors need high current and the 7805 based power supply cannot handle that which makes the external interrupt signal is disturbed.
Thank you.
My stepper motors need high current and the 7805 based power supply cannot handle that which makes the external interrupt signal is disturbed.
Thank you.