My school has been teaching me how to use the Sparkfun Redboard and it has been working fine. However, when I bought my own, it doesn’t seem to work. My version is the Sparkfun Redboard 4.0. I got the correct serial port (/dev/cu.usbserial-DN04AB8O) and the correct board (Arduino/Genuino Uno) but when I click board info it still says BN: Unknown Board. I am getting the “programmer not responding” error message. My computer version is Mac OSX High Sierra.
After doing a little bit of digging on the internet, I saw something about the LED next to pin 13 blinking when you connect it. That doesn’t seem to be the case for my Arduino. However, I don’t really know what that means. Also, I emailed the Sparkfun technicians and they said that it might be because every board has different serial ports and I am using the same one as the one I used in school. Is that the issue and if so, how do i fix it? I have already manually installed the driver multiple times.
Please help me fix this issue as I really want to get started on my project.