"The other I can't program"
After the program compiles I get the message that the file did not upload.
":avrdude: stk500_getsync() attempt 10 of 10: not in sync: resp=0x8c
Upload error: Error: 2 UNKNOWN: uploading error: uploading error: exit status 1"
I used the website installer repeatedly"
The website is: http://www.wch.cn/downloads/CH341SER_ZIP.html
I used the app to install the driver - I did this multiple times - after each time it still did not upload.
The other board which is working I can program with "Arduino Nano" or "Arduino Pro or Pro Mini".
I'd appreciate some help.