Arduino Mini Upload Error avrdude: stk500_getsync(): not in sync: resp=0x00

Development Tools IDE 1.x
1

Hi Arduino-land,

I've been trying to get code uploaded to the Mini for quite some time now, and I've been getting the same error that a lot of other people have with avrdude: stk500_getsync(): not in sync: resp=0x00 during the upload process. However, I'm starting a new thread for this issue because I have implemented several of the fixes other people suggest on other threads with no success. I have attached an image of my setup, and will run through the wiring and attempted fixes here to follow:

USB Adapter Mini
5V (orange) 5V (orange)
GND (green) GND (green)
TX (white) RX (white)
RX (purple) TX (purple)
RTS (brown/red) Reset (red)

The RTS and Reset lines go to a capacitor bank in the lower right of the image, where I have ten 10 nF capacitors in parallel to make a 100 nF (0.1 uF) capacitor. This has been measured and verified.

Here are my attempted fixes:

  • Swapping the TX/RX lines on the Adapter so the TX lines on the Mini and the Adapter are connected and the RX lines are connected. No luck.
  • Connecting the Reset line on the Mini to the DTR line (Data Terminal Ready) hoping this would reset the Mini once the Serial line became active. No luck.
  • Disconnecting the Reset line and holding down the Mini's reset button through the compilation process and releasing before and then during the upload sequence. No luck.
  • Running the upload process with the Mini's reset line disconnected and not pressing down the reset button. No luck as well.

Should I move to a different USB Adapter? I'm currently using the Arduino Mini USB Adapter, but I've seen other people use different Adapters with luck.

Has anyone gotten this to work with the Arduino Mini USB Adapter?

Thank you very much!

2

The first picture was too large so I've attached it here.

ArdMiniSetUp.jpg
ArdMiniSetUp.jpg1224×1632 669 KB

3

Normally the mini is connected via the connections on a short edge like this.

4

Would that make a difference? I checked continuity between the TX/RX lines on each side and they all connected to the same spot.

5

drewejohnson:
Would that make a difference? I checked continuity between the TX/RX lines on each side and they all connected to the same spot.

Well, I've never tried it your way so couldn't comment. Have you tried it my way?

6

sir. try use other kind of programmer. Or if you have Arduino Uno, you can use it as programmer. If still dont work, maybe the problem is in your Arduino Mini. I tried here and it work.
http://thinkingparts.blogspot.com/2015/01/programmer-used-in-programming-arduino.html