That ATTINY sure is being worked hard, I think you should set up the watch dog timer to prevent it from jamming up even though in theory it shouldn't jam. I've been caught out before when the watch dog could have saved me from revisiting a job.
That ATTINY sure is being worked hard, I think you should set up the watch dog timer to prevent it from jamming up even though in theory it shouldn't jam. I've been caught out before when the watch dog could have saved me from revisiting a job.
makerkaren wrote:
I'm not sure I know what you mean. Could you describe your idea further?
I've not watched the glue gun episode yet but from the above comment I assume the ATTINY is being used to control the squirting of the glue and I assume Stephen is concerned that if that crashes you'll end up with a supergluey mess everywhere and it'll keep squirting super sticky icky stuff until you can turn off the power or it runs out. A watchdog timer making sure the ATTINY is still functioning would catch an issue and shut everything down before it glues you and everything else to your bench! 
Best Regards,
Rachael
You don't need to create it - it's there in the chip. All small processors like this have watchdog circuits.
