Connecting power to the Digispark power pins backwards will almost certainly destroy it. The Digispark does not have short circuit or reverse polarity protection. For the record, we've found many computers have usb fuses built in, and when we blew them on our 27“ Mac monitor, thankfully they reset and everything worked after a power down. We strongly recommend connecting your Digispark through a USB hub which will often limit the damage caused by a short circuit to the usb hub. We take no responsibility for damage to your machine as a result of the use of a Digispark. Connecting a shorted circuit to the Digispark and connecting it to your computer could damage your computer and/or its USB ports. When testing a new circuit we recommend that you test it with an external power supply first. The Digispark, due to its small size and low cost is not as robust as a full blown Arduino. This code will blink the BUILTIN LED (on either pin 0 or pin 1 depending on the Digispark model see: Model Identification).Īs soon as it has uploaded you should see the LED start to blink!įor some sample code for the basic I/O function see here: Digispark Basics Digispark Differences and Using Arduino/Processing with the Digispark: the loop routine runs over and over again forever:ĭigitalWrite(0, HIGH) // turn the LED on (HIGH is the voltage level)ĭigitalWrite(0, LOW) // turn the LED off by making the voltage LOW initialize the digital pin as an output. Here is the code it will load: // the setup routine runs once when you press reset:

If you're just getting started try the above procedure with the example you can find by going to File→Examples→Digispark→Start

Arduino 1.8.5 files for attiny