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Pete, Computer Engineer
Category: Computer
Satisfied Customers: 17274
Experience:  CISCO certified, Microsoft proficient, computing expert.
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I'm trying to load a program into an Arduino Pro Mini and no

Customer Question

I'm trying to load a program into an Arduino Pro Mini and no matter how many different ways I try to configure the settings I get the same error:avrdude: stk500_getsync(): not in sync: resp=0x00
Can you help?
Submitted: 1 year ago.
Category: Computer
Expert:  Pete replied 1 year ago.

Hi there!

There are three main causes of this error:

  • A wire is connected to pin 0 (RX) on the Arduino.
  • You have the wrong COM port selected (the IDE does not see your board).
  • Your Arduino drivers are not set properly.

Let me know how you get on...

Customer: replied 1 year ago.
Please forgive my ignorance, but I could find a pin labeled RX, only RXI. I disconnected that pin, but still no luck. The red LED comes on the board and occasionally the green led flashes, but I still get the same error. Other than the FTDI board, nothing is attached to my Arduino.There is only one active COM port on my computer (currently labeled COM1) so its the only option I can select. I've confirmed that its my Arduino as the com disappears when I unplug the USB.As for drivers, I suspect that is the problem but I've tried several different drivers with no luck.
Any other thoughts would be greatly appreciated.
Expert:  Pete replied 1 year ago.

Would you be able to get your hands on another Arduino to test on the same PC?

Customer: replied 1 year ago.
Tried three different arduino boards with the same results. Also tried switching between the ftdi board and simply the adapter cable
Expert:  Pete replied 1 year ago.

Ok, in that case do you have another PC or laptop available to check if it is only on one computer that you cannot recognize the Arduinos?

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