I was connecting rx to rx, tx to tx, resetto reset, and also connecting the two grounds. Could you please tell me the correct way to wire it?

Yes, i have attached an external power source while doing so, what's more, when reset, gnd and rx are connected,(All of them have to be connected,i've tried) the l surface mount led's that are power, pin 13, rx and tx start azy and going crazy and blinking, even when the other board is running only a blink sketch)

Thanks, I have heard that you can program an arduino without an ftdi chip, i.e. a mini, using an uno. I have tried to program the nano this way, but to no avail. Would you have an suggestions as to how i could achieve this?

Thanks for the response,

Yes i have tried the lead on something else, it works fine.

If i power it externally and plug it in, the computer can't find it

Try leaving out the If(Serial.Available() > 0) and then maybe add a 5 millisecond delay. Not sure if you need the delay though, try it with the delay and without

Hey Guys,

So, I've had a Arduino Nano or a while, used it a couple of times and it worked fine. Recently, Whenever i connect it to the computer with a usb cable, It doesn't turn on. The Led's stay off nothing goes on. However, if i connect a battery to the Vin and GND Pins, it works fine. I know the usb cable works because I've used it before fine. If anyone can help, or provide another way to program the Nano i would be grateful!

Thanks,

Sasha