Program Arduino Ethernet

hello all

I'm new on this forum and also with arduino and have a question

I have recently bought a arduino ethernet and a Belkin USB 2.0 Serial / Serial Adapter F5U103cp to program it. Now my question is can i program the Arduino with this cable? I have been a number of attempts and still got this error

avrdude: stk500_getsync (): not in sync: resp = 0x00.

Or can you only program the Arduino with this cable USB Serial Light Adapter for Arduino


I have the tx, rx and gnd connected to the same pins as the serial adapter light.
2 = received
6 = gnd

Also, I tried rx and tx to exchange ...

when that was not working I have the arduino directly connect to a serial port but that did not work either.

I hope you can help me!


The Belkin adapter is a USB to RS232 converter. You should connect it directly to your Arduino, it can harm it (it puts out voltages of up to +/- 15V). The Arduino needs a TTL (5V) level serial adapter. The USB2Serial Light adapter from Arduino is one example, there are lot of other examples. Most adapter named "FTDI cable" also are usable for this purpose.

Ok thanks for the quick response!
I will get a ftdi usb cable and hope the arduino is not broken!


I will get a ftdi usb cable

Ensure it is at TTL level. The more convenient way is using a USB2Serial Light adapter because there the pins are in the correct order and connect directly to the pins on the Arduino Ethernet.