Hi everyone,
Awhile back I made a simple PCB that sends 4 analog signals to an Arduino Uno. I decided I wanted to make my PCB Arduino compatible. Since the Arduino Uno worked so well for this project, I decided on using the ATMega328p and 16U2 for my PCB. I have burned the bootloader for the 328p and installed the firmware for the 16U2.
Both seemed to install without a problem. The Arduino IDE recognizes my custom made PCB in Tools > Ports as: COM6 (Arduino Uno). When I try to upload a sketch, I get the error shown below.
I have years of experience programming but this is my first time trying a standalone project. I am not too familiar with burning bootloaders and installing firmware. I have been researching for days and I can't seem to figure out what I am doing wrong.
I followed these two guides for burning the bootloader for the atmega328p and installing the firmware for the atmega16u2.
Atmega328p burning the bootloader:
Atmega16u2 installing the firmware:
I have also attached the schematic for the PCB.
Can someone please take a look and let me know if they see anything I am missing or doing incorrectly. I would very much appreciate the help and it will go a long way.
Thank you
Error Message:
Using Port : COM6
Using Programmer : arduino
Overriding Baud Rate : 115200
avrdude: stk500_recv(): programmer is not responding
avrdude: stk500_getsync() attempt 1 of 10: not in sync: resp=0x58
avrdude: stk500_recv(): programmer is not responding
avrdude: stk500_getsync() attempt 2 of 10: not in sync: resp=0x58
avrdude: stk500_recv(): programmer is not responding
avrdude: stk500_getsync() attempt 3 of 10: not in sync: resp=0x58
avrdude: stk500_recv(): programmer is not responding
avrdude: stk500_getsync() attempt 4 of 10: not in sync: resp=0x58
avrdude: stk500_recv(): programmer is not responding
avrdude: stk500_getsync() attempt 5 of 10: not in sync: resp=0x58
avrdude: stk500_recv(): programmer is not responding
avrdude: stk500_getsync() attempt 6 of 10: not in sync: resp=0x58
avrdude: stk500_recv(): programmer is not responding
avrdude: stk500_getsync() attempt 7 of 10: not in sync: resp=0x58
avrdude: stk500_recv(): programmer is not responding
avrdude: stk500_getsync() attempt 8 of 10: not in sync: resp=0x58
avrdude: stk500_recv(): programmer is not responding
avrdude: stk500_getsync() attempt 9 of 10: not in sync: resp=0x58
avrdude: stk500_recv(): programmer is not responding
avrdude: stk500_getsync() attempt 10 of 10: not in sync: resp=0x58
avrdude done. Thank you.
arduino.pdf (1.76 MB)