I got hold of some ATtiny85s without knowing what to use them for. I just liked the possibility.
I consider myself an electronics noob, but a careful one, and I must say that I don't like the more enthusiastic approach of my engineering friend. He calls it "Learning by Burning".
I prefer to study, then ask those who could be considered knowledgeable...... and then burn something.
Back to what happened:
I downloaded the Attiny library, unzipped it and installed it as directed.
I did likewise with the latest Arduino IDE
Hooked up the breadboard with the ATtiny according to http://hlt.media.mit.edu/?p=1695
Hooked up the indicator LEDs according to the Arduino ISP sketch
Loaded the Arduino ISP sketch to the Arduino (An UNO Rev 3)
Mounted the "do not reset" capacitor
Set ATtiny at 8MHz with "burn bootloader"
forgot to select "Programmer: Arduino as ISP"....... that took some time to figure out!)
selected: Arduino as ISP
Uploaded a slightly adjusted "blink"
AND IT WORKED
Now I've loaded a reduced version of the morse beacon from http://brainwagon.org/2009/11/14/another-try-at-an-arduino-based-morse-beacon/
and it sits on my desk looking happy.
I'd like to make a bike light blinking messages, and this leads me to the question:
Is it really that simple?Is all I have to do, to connect my LED and a resistor to the chosen output pin and ground, and my 4,5 V battery between "+" and ground?
It is too simple, there must be a catch!
What have I forgotten, that will let out the magic smoke?