Connecting LCD to NANO on the mini board

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1

Hello, i have the usual beginner LCD screen with 16 pins, NANO, which has of course 15 pins on one side and a mini board with 30 pins in one row. Now I have the problem with connecting it because one of the pins would have to be overlapped and I dont know if that would damage my NANO in any way. I have tried looking for answers on the web but havent found any I could understand. I did the picture of how I would connect it if that was possible...my dilemma is if I can connect 5V from NANO which has to go on VDD pin on LCD and on the picture those 5V will also be connected to Vin....

WP_20151130_005[1].jpg

2

Your question is not clear.

If you are asking whether you can connect all the 5V together then the answer is yes.

3

So on this picture I showed how I would like to connect it ( ignore the ground cable ). The power supply would be USB which I didnt connect now. And the 5V exit from the NANO needs to be connected to the VDD of the LCD. So, can I connect it like this and plug the USB in?

WP_20151130_008[1].jpg

4

Probably not a good idea. The Vin is connected to the voltage regulator input side, which is trying to produce 5V on the other side (see schematic https://www.arduino.cc/en/uploads/Main/ArduinoNano30Schematic.pdf)

5

Your best bet is a full size breadboard or a second short breadboard.

Another possibility is an I2C adapter for your LCD.

Don

6

Thank you very much for your quick answers, I already ordered the full size breadboard and its on its way but I wanted to play with the LCD. Guess I will have to wait for it to come :slight_smile: