Questions tagged [electronics]

Use this tag to ask about electronics-related issues with your Arduino. For example: driver transistors, Ohm's Law, current-limiting resistors.

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Why does arduino work on usb power?

The arduino website states that the operating voltage of an arduino is 7-12V. Why does the arduino work powered on just usb then? As usb only outputs 5V and 500ma. Is it preferable to say run the ...
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3answers
457 views

arduino boot loader problem

I am using atmega 328pu instead of atmega328p-pu. I am trying to upload the bootloader using AVR pocket programmer. I have changed signature from 0x1e 0×95 0x0F to 0x1e 0×95 0×14. (Relevant link) ...
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1answer
523 views

7 Segment Display SET UP

I am new to Arduino. I have been trying to connect a 7 segment display (3 digits) to my Arduino and I was successful, but I am not doing any connection to ground. I do not find the data sheet so I am ...
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0answers
231 views

Arduino controlled remote for an rc car. What am I doing wrong? [closed]

I have an Osepp Mega 2560 (Arduino Compatible) which I'm trying to use to run a RC Car from the remote control. Can someone please explain how do I need to connect the pins from Osepp to the ...
3
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1answer
164 views

Which voltage regulator should I use? [closed]

A friend and I are working on building a smartwatch on a budget, so it’s a (very) low power project, but we are currently having a problem with the power supplying. We already chose this board, ...

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