Arduino Pro Mini upload problem

Using Arduino IDE 1.x
1

Hi Folks,

I did buy multiple 5V Arduino Pro Mini boards for my project. http://www.ebay.co.uk/itm/291112526853?ssPageName=STRK:MEWNX:IT&_trksid=p3984.m1497.l2649

I have tried to upload code with two of those without success.

Have tried to:

  1. Upload with USB to UART TTL (CP2012). With proper board and com port.
  2. Upload through my Uno board. With Pro Mini board and com port.

Using pins:
5V -> VCC
GND -> GND
TX -> RD (and also TX -> TX)
RD -> TX (and RD-> RD)
With reset from Uno's reset. I have also tried reset Pro Mini board by hand when uploading the code.

All the time I'm getting error : avrdude: stk500_getsync(): not in sync: resp=0x00

When connected to TTL board Pro Mini's red led is high and green led going high/low in 15sec periods.

In the same time I bought TTL board (CP2102). It uses Silicon Labs CP210x USB to UART Bridge drivers. Haven't done any changes to com port advanced settings. At least I know that USB is working with UNO, so code should go through that to Pro Mini.

Any ideas would be more that appreciated !

-Ari

2

Did you select the correct device in Tools -> Board?

3

Yes. I have selected "Arduino Pro or Pro Mini (5v, 16mhz) w/ ATmega328"

4

For wiring I would suggest;

Using pins:
5V -> VCC
GND -> GND
TX -> TX)
RD-> RD)
On Uno add jumper from Uno ground to Uno reset pin.

Then select promini as board type.
Press and hold down reset switch on promini
Press upload on IDE and when IDE says uploading (after compiling) only then release the promini reset switch.

Lefty

5

I also use pro mini with an usb-adapter.. RX<->TX (both directions)

6

Thanks. I have tried also RX to TX but that wont work either.

Still cannot upload code to pro mini.

Connected Pro Mini to my Uno
5v - VCC
GND - GND
TX - TX
RX - RX
UNO Reset to UNO GRN

Selected board Pro Mini Atmega328 5V

In Uno board rx blinks couple of times really fast but nothing else will not happen.
Tried also config
Battery 7.6v - VCC
Battery GND - GND
Uno's TX - to pro mini TX
Uno's RX - to pro mini RX

Both tries released reset button when IDE says that it will start uploading.

Ari

7

with your usb to ttl adapter installed and working..
gnd->gnd
5V->5V
tx->rx
rx->tx
..hold reset down until compile is finished.. release as soon as u see 'upload'
I do this 'all the time' using this adapter
http://www.ebay.com/itm/USB-To-RS232-TTL-Auto-Converter-Module-Converter-Adapter-For-Arduino-S9-hv2n-/301019253456?pt=LH_DefaultDomain_2&hash=item4616254ad0

8

Got this work. In board there was no bootloader. Burned bootloader with my Uno.

Same issue like here http://forum.arduino.cc/index.php?topic=217246.0

Thanks all for help