You're right. If I use the onboard button to trigger D0 it works without the error. However, if I add a button to D0 and pull it up I get the FIFO_FULL error. This sounds like a hardware problem which I can work through.
Espruino is a JavaScript interpreter for low-power Microcontrollers. This site is both a support community for Espruino and a place to share what you are working on.
You're right. If I use the onboard button to trigger D0 it works without the error. However, if I add a button to D0 and pull it up I get the FIFO_FULL error. This sounds like a hardware problem which I can work through.
Thanks again for the help on this.