I saw in another post that you could provide me with a github link to customized code that would change the controllable pixel count from the 3 default values. I need the middle value changed to 150 pixels if that is possible. Also I am not an expert on microcontrollers, but I do have a USB to serial adapter that works with Putty. Would that work to flash the data to the board? Here’s a link to a pic of the dongle: https://imgur.com/a/iCAW6to