Minimalistic emontx

Submitted by leoben on Fri, 27/06/2014 - 11:01

Hello,

I am trying to do a very simple thing : using the very basic options of emontx V2 to fork a kWh pulse counter.

So starting very simple, just blinking the led for instance. I have assembled what I think are the basics for the atmega328 and ftdi programmer to work, I must have forgotten something. Picture is attached.

The only thing I get when trying to load code is :

"Problem uploading the code.

avrdude: stk500_recv(): programmer is not responding"

I have tried replacing atmega328 with a working one : didn't work.

I have tried uploading my blink sketch to a fully assembled emontx : did work.

Thanks you in advance for taking a look at the case. Suggestions welcome.

Léo

Re: Minimalistic emontx

Submitted by pb66 on Fri, 27/06/2014 - 11:18.

The FTDI connector pin 2 is not connected on emontx v2 and you have no 5v to 3.3v components fitted.

You need to either fit the VCC components or create a temporary link from FTDI p2 to VCC to power the AVR. (assuming you are using a stock programmer with 3.3v out on p2)

Paul

Re: Minimalistic emontx

Submitted by leoben on Fri, 27/06/2014 - 15:14.

Hi Paul,

Thanks a lot for your quick and sharp answer.

I have tried both the options you suggested, they work.

Thanks again, regards,

léo

Archived Forum