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I have an Arduino Mini Pro 3.3 V powered from a coin cell(3.6 V, CR2450) and connected to Bluetooth Mate Gold. I have checked the connections and they are fine. I can also connect to the bluetooth from while trying to upload the file and also from Android bluetooth terminal.I am not sure if it could be bootloader issue as I have checked 2 Arduino Mini Pros that give the same problem running the sample sketch on the bluetooth hookup guide.

  • Arduino: 1.6.5 (Mac OS X)
  • Board: "Arduino Pro or Pro Mini, ATmega328 (3.3V, 8 MHz)"

The error is:

Sketch uses 2,412 bytes (7%) of program storage space. Maximum is 30,720 bytes.
Global variables use 210 bytes (10%) of dynamic memory, leaving 1,838 bytes for local variables. Maximum is 2,048 bytes.
avrdude: stk500_recv(): programmer is not responding
avrdude: stk500_getsync() attempt 1 of 10: not in sync: resp=0x00

I burned the bootloader again but no success.

I get the same with UNO. However with UNO, when I press the reboot button before the program uploads is works.

Could someone point me out to the solution to this? Thanks

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    How did you connect the arduino reset pin to the BT-module? – Gerben Jul 16 '15 at 13:02
  • @Gerben I used this hookup guide. For Pro-Mini the pins just match. Isn't it? – devchandan Jul 21 '15 at 10:41
  • That guide doesn't connect the reset. So you have to manually reset the arduino just before programming. – Gerben Jul 21 '15 at 14:58

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