Arduino Uno Ethernet without FTDI

Development Tools IDE 1.x
1

Hello !
I try to connect my Arduino without any FTDI-USB. Which pin must I plug ?
Help me with this photography:

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I have a normal USB cable with 4 pins (and a blindage):
Red: +5V
Black: ground
White: D-
Green: D+

Thanks :slight_smile:

2

Someone would have a diagram?

3

Is it possible to program an Ethernet card with another Uno card connect via USB to the computer?

4

Red: +5V
Black: ground
White: D-
Green: D+

You can't connect USB directly. You need a USB to Serial chip like the FTDI chip which is found on the FTDI cable. That's why it is needed.

Is it possible to program an Ethernet card with another Uno card connect via USB to the computer?

You might be able to use the Uno's USB to Serial adapter. Remove the ATmega328. Connect the Uno RX to the Ethernet RX and Uno TX to Ethernet TX. Keep in mind you'll have to manually reset the Arduino Ethernet when uploading (press reset when the "xxx of xxx bytes used" message appears in the IDE).

This method is going to be frustrating.

5

Thanks for your answer ! I used my Uno as an AVR programmer. I just removed the Atmega and it works well.
Now I can I can programming my Ethernet with my Uno ! :smiley: