Please can someone help me with this error, "avrdude: stk500_getsync(): not in sync: resp=0x4d". I have searched but so far nothing. I have up to date drivers and the COM ports are selected correct as well as the board type. Thanks
What model Arduino?
What exactly do all the lights on the board do before, during, and after the attempt to upload a sketch?
It's an Arduino Uno and also there's a shield on top.
The lights anyway.
Before:
Green: Always on
Orange: Always on
During:
Green: Always on
Orange: pulses about 5 times, half a second pause, always on.TX LED flashes repeatably.
After:
Green: Always on
Orange: Always on. TX flashes repeatably.
Thanks again.
//Green LED is power, "Always on" wow me...
I have the same problem since I use my Arduino UNO as ISP programmer for attiny45, I was working from my laptop with windows 8, I started working on my other computer with windows 7, have updated drivers, I donĀ“t know what I can do to solve this problem, help me please
After some more testing, I found that the error is due to the sensor shield as when I removed it, the upload completed.
//Edit:
It was one pin which messed up the entire board.
I recommend you remove all the pins, try the code, if it works add another pin, retry. Repeat.
Hope this helps.