Post by solipsistnation on Jan 5, 2021 16:14:11 GMT
I've looked up the error message-- did you make sure you picked the right version of arduino in the IDE? That looks like usually the problem. You may also have to make sure you have the right port set up. One of the things under the Tools menu from "Board" on may be set wrong.
You may also have to restart the IDE (just quit out and launch it again) and reset the Grains board right before starting the upload (pull power, put power back in, wait like 2 seconds for it to power up all the way).
Please check the following: Open the windows device manager When plugging the Grains in, a new serial Port should appear under LPT and COM ports The new com port has a certain number,like "COM 3" This port number has to be set in the Arduino menu. Hope this helps!