I have found an problem here

[mahoud_eldefefey]

i am new in using arduino uno and I have face this problem I use the blinking code of led but it is not working well when I try to change the delay function and upload it , it gives me this error :

Sketch uses 924 bytes (2%) of program storage space. Maximum is 32256 bytes.
Global variables use 9 bytes (0%) of dynamic memory, leaving 2039 bytes for local variables. Maximum is 2048 bytes.
avrdude: stk500_recv(): programmer is not responding
avrdude: stk500_getsync() attempt 1 of 10: not in sync: resp=0x22
avrdude: stk500_recv(): programmer is not responding
avrdude: stk500_getsync() attempt 2 of 10: not in sync: resp=0x22
avrdude: stk500_recv(): programmer is not responding
avrdude: stk500_getsync() attempt 3 of 10: not in sync: resp=0x22
avrdude: stk500_recv(): programmer is not responding
avrdude: stk500_getsync() attempt 4 of 10: not in sync: resp=0x22
avrdude: stk500_recv(): programmer is not responding
avrdude: stk500_getsync() attempt 5 of 10: not in sync: resp=0x22
avrdude: stk500_recv(): programmer is not responding
avrdude: stk500_getsync() attempt 6 of 10: not in sync: resp=0x22
avrdude: stk500_recv(): programmer is not responding
avrdude: stk500_getsync() attempt 7 of 10: not in sync: resp=0x22
avrdude: stk500_recv(): programmer is not responding
avrdude: stk500_getsync() attempt 8 of 10: not in sync: resp=0x22
avrdude: stk500_recv(): programmer is not responding
avrdude: stk500_getsync() attempt 9 of 10: not in sync: resp=0x22
avrdude: stk500_recv(): programmer is not responding
avrdude: stk500_getsync() attempt 10 of 10: not in sync: resp=0x22
Failed uploading: uploading error: exit status 1
could anybody help me to find the solution

[LarryD]

Did you set up the board type and port number correctly ?

[b707]

This error has nothing to do with your programing code, it is a problem with upload.

[gilshultz]

Go into tools and select the AVR and UNO. I am not sure of the path as I do not know which IDE you are using.

[mahoud_eldefefey]

Could you suggest a solution could help please to solve I have found that the problem in port or define the my laptop just provide power but not define the port correctly just come3,4

[anon15903679]

Provided you select in 'Tools' the correct Port: 'Com(number)', Board: 'UNO' and Programmer: 'Arduino as ISP' it should compile when clicking 'top left tick in a circle' and then load by clicking 'Right arrow in circle'. Provided you are using Windows it is always worth checking device manager to see Arduino Uno listed under ports. For reference I always use the following code for test, which produces a binary count on PORTB and slowly flashes the on-board LED attached to pin 13.

int cnt;

void setup() {
  DDRB = 0b00111111;
}

void loop() { 
  PORTB = cnt++;
  delay(100);
}