Seniors! Hello everyone my Uno in just power on the power will flicker. 3 ~ 5 times why
How do you know this? Do you have a meter monitoring the power?
Change the power supply.
更换电源
After the flicker, does it work normally?
Sounds like it's making a connection to the computer.
Yes, the computer is connected
No! It's the relay dancing
I will try later Thank you
You have a dancing relay? Do you have it directly connected to your Arduino? Perhaps you need to supply a schematic of your project rather than just dropping hints from time-to-time.
Dance without relay, please ask what is the schematic diagram
Change the power supply or the same
Post the circuit diagram.
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