Comments: Atto84 Hookup Guide
Looking for answers to technical questions?
We welcome your comments and suggestions below. However, if you are looking for solutions to technical questions please see our Technical Assistance page.
If you've found an issue with this tutorial content, please send us your feedback!
Ok what's the deal with these little boards? I bought 2 of them. Gave 1 to my brother-in-law and kept one to myself. Neither one of us can even get these boards to turn on, the LED doesn't even blink. I followed the Hookup Guide exactly and all the steps were successful, according to the guide. But when I go to load to the Arduino IDE there is no COM port recognized, it's like nothing's plugged in. My brother-in-law didn't have any success either and he tried it on the Mac, I'm using windows. So basically I bought 2 bricks. Any ideas here from Sparkfun Engineering or the peanut gallery? Thanks!
Hi there, in case no one chimes in... unfortunately, this is a SparkX product and you may need to go to the forum. As mentioned on the product page and at the beginning of the hookup guide:
That being said, I think your issue might be answered in the Gotchas section of the hookup guide:
So i was trying to use the blink example in ide 1.8.5 and pin 8 or LED_BUILTIN and no blink but i kept getting micronucleus telling me thank you, I grabbed the atto84 to unplug from usb and the led glowed dim. Finger probes showed pin 2 was making the magic happen so i just used pin 2 in the ide and I have a blinking led. Whats up with that?
This is interesting because the ATtinycore has two pin numbering schemes, clockwise and counter-clockwise. Pins 8 and 2 are complementary pins. I'll see if I can reproduce the error and fix it in an update to the board profile.