I live in Iran and can't access the Arduino products, So I HAD TO BUY A COUNTERPART. Will plugging a 9V 2A adapter to barrel jack fry / damage the board itself?
I also will be using nearly every pin. Even 3.3 and 5V pins.
For what? It makes a huge difference. Please post a complete, accurate diagram of your hardware that clearly identifies all the components.
I can't post a picture but here is all components that im using:
A DHT11 sensor (+ 10K Resistor, 3.3V pin) (uses 3 pins in total)
A 3 digit 7 segment display (uses 11 pins in total)
And a SD Card Module (5v power pin) (uses 6 pins in total)
Yes, you can. You only have to unlock your account by doing a few trivial things like reading a few posts. I'm not sure what those are, though... unfortunately it's not made clear to new members AFAIK.
But, that hardware is not very power hungry. You can probably get away with using the barrel jack, but why not power it from a 5V phone charger instead?
I don't see anything there that should receive 3.3V... what is going on with that?
Also, you posted in "Installation and Troubleshooting". It is only for IDE problems...
Just moved to the Project Guidance section of the forum.
The 5V and 3.3V outputs are very current limited when powered by a 9V PSU. You may need a 5V PSU for direct power distribution to all 5V modules.
Do you have a cell phone charger?
A 10 watt 5 volt USB output cell phone charger makes a very nice power supply.
You can use it directly for the USB input to, say, an UNO, or modify a USB cable and just use +5 and GND from that.
a7
This topic was automatically closed 180 days after the last reply. New replies are no longer allowed.