Can I feed UNO from external power supply

vagulus · February 14, 2018, 7:54am

I have a setup which reads a DHT11 digital temperature/humidity sensor (1) into a UNO and displays the results on a 2.7" 128x65 OLED LCD (3). The display and the sensor are powered by an external power supply (2).

Once the UNO is programmed, and once the USB is disconnected can I then power the UNO from the 5V external supply into the 5V pin on the UNO along (4)?

Budvar10 · February 14, 2018, 7:58am

Yes, you can.

vagulus · February 14, 2018, 8:01am

Thort zo! Thanks

Budvar10 · February 14, 2018, 8:15am

vagulus:
Thort zo!

:o Can you explain? I do not understand and web does not help me much more.

vagulus · February 14, 2018, 8:21am

Sorry for the confusion. Just me trying to be funny. "Thort zo" is just a phonetic way of saying "I Thought so!"

Budvar10 · February 14, 2018, 8:27am

Aha, one of explanations I found was similar - like baby speak.

vagulus · February 14, 2018, 8:29am

Budvar10:
... like baby speak.

Yup!

system · February 14, 2018, 5:00pm

(deleted)

system · May 5, 2021, 6:29pm