Blink on AtTiny85

Other Hardware 3rd Party Boards
1

Yeah! I got blink to work (sort of) on an AtTiny85!
(A thrill perhaps only for a newby like me...)

However, when it blinks the LED does not go completely off, it just goes very dim. Any ideas why?

I used the set up from <//hlt.media.mit.edu/wiki/pmwiki.php?n=Main.ArduinoATtiny4585> . The only changes that I made to "blink" was to change pin 13 to pin 0. I am using a 1k resistor with a 20mA LED (LED - Basic Yellow 3mm - COM-00532 - SparkFun Electronics).

It took a while to figure out how to disable the reset on my Uno, until I bothered to read http://arduino.cc/en/Main/ArduinoBoardUno, and then I managed to mess it up by hooking up the resistor to ground rather than 5V (works much better when wired per the instructions!)

2

If Pin 0 is used for serial I/O like on a regular Arduino that might cause some voltage to seep into the LED. Did you disconnect from the serial port after uploading the sketch?

3

You are correct.
When I disconnected the Uno from the AtTiny85 blink worked as expected (full on, full off)