Power and Serial

Ok, first off, I had NO IDEA where to put this topic on the forums, so I apologize in advanced if I chose the wrong category.

I was wondering if it was possible to do this for power and serial connections:

USB:   +5v   +tx   +rx   -grd     Power supply:   +12v   -grd
            |        |      |       |      _________________/        |
            x       |      |       |      |        _________________/
                     |      |       |      |       /
                     /      /       / ___|____/
                    /      /       |/      |
                   /      |        |       |
Ard.Unor3: tx/1   rx/0   Grd   Vin
                 /\      /\ (or vice versa)

wow, that looks different now. incase you dont understand that:

USB +5v -> x
USB +tx -> Arduino rx
USB +rx -> Arduino tx
USB Gnd -> Arduino Gnd
Power +12v -> Arduino Vin
Power Gnd -> Arduino Gnd

SweetEpicDude1:
wow, that looks different now. incase you dont understand that:

USB +5v -> x

USB +tx -> Arduino rx
USB +rx -> Arduino tx
USB Gnd -> Arduino Gnd
Power +12v -> Arduino Vin
Power Gnd -> Arduino Gnd

What is USB +tx? USB signals are D+, D- and they ARE NOT compatible with Arduino TX, RX (pins 0,1).

A USB (4wire) has VCC, D+, D-, GND

chuck.

To avoid misunderstanding I think you should make a pencil drawing of your circuit and post a photo of the drawing.

It is very easy to misunderstand written descriptions because we are all prone to jumping to conclusions based on how we do things ourselves.

...R

chucktodd:
What is USB +tx? USB signals are D+, D- and they ARE NOT compatible with Arduino TX, RX (pins 0,1).

A USB (4wire) has VCC, D+, D-, GND

chuck.

Ok, then I am assuming 5 wire with common ground or 6 wires with separate grounds will work with a USB type b male on the USB pins?

What are you trying to do? None of this makes sense.

SweetEpicDude1:
Ok, then I am assuming 5 wire with common ground or 6 wires with separate grounds will work with a USB type b male on the USB pins?

Read and respond to Reply #3 or stop wasting our time.

...R

Hi,
Might be worth starting here.

The USB of the arduino does not connect directly to the controller, there is a USB to Serial system in between.
Unless I believe it is a DUE, but don't quote me.

Tom.... :slight_smile:

TomGeorge:
Hi,
Might be worth starting here.

USB in a NutShell - Chapter 1 - Introduction

The USB of the arduino does not connect directly to the controller, there is a USB to Serial system in between.
Unless I believe it is a DUE, but don't quote me.

Tom.... :slight_smile:

So a USB to TTL converter like this:

Would work with vin, grd, tx, rx? Right? I am using UNO R3.

Hi,
Can you tell us exactly what you are trying to do.
The UNO has all on board to connect USB to the serial of the controller chip.

Tom… :slight_smile: