Hello I reconnect the rambo card to the Estlcam software they are in communication immediately after your comment that I might have flashed the card with their firmwire or something like that, I said yes it is possible I find the order "remix control as before Estlcam l uses, what I did, now a green LED and a yellow LED flash slowly continuously, but nothing came back on the LCD screen is blue, I link again with Repetier host I see that it communicates together but I can not do anything else, I tried to reflash with the method on your site but arduino displays an error after compilation.
I would really like to have a solution track while knowing that the problem comes from my side.
thank you so much
Pierre