Hi there, Need a help with my design. Building a FM radio with following and on the test setup, I'm powering each module as below; RDA5807 - 3.3v - Buck converter powered through bench top power supply. RTC DS3231 - 5v - Buck converter powered through bench top power supply. Arduino UNO - 5v - B…

[image] dinesha77: Please if you could explain about ground loops or direct me to an article. Google "ground loops" for several relevant articles. The long leads in your setup are a serious problem, for several reasons: inductive voltage spikes, cross coupling, RF interference, ground loops,…

Arduino UNO EEPROM reset

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Smajdalf September 17, 2021, 4:20pm 10

So the EEPROM reset is expected power up behavior?
Is there some backup power for the RTC?

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Arduino UNO EEPROM reset

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