Attiny84a simple LED

As a beginning to program microprocessors I am trying to blink a LED with the Attiny84a.
Basically I followed this tutorial: link It's on german but you can probably guess what it is about.
I used exactly the same code but instead of led = 2 I chose led = 7. I don't have an arduino so I used a USB programmer which worked fine ("Done burning bootloader").
Finally I used my raspberry pi as a power supply. I connected the VCC of the attiny84a to the 5V of my raspberry (I tried the 3.3V, too) and GND to GND. Here you can see the setup: link. I don't get it to work. If I connect the white cable (to the bottom right) with the orange cable, the LED is shining just fine.
Any ideas what I'm doing wrong? Is the attiny84 not working? Why do I get the message "Done burning bootloader then? Is there an easier tutorial to check if the attiny84 is working or an easy possibility to debug the output of the attiny84?

Did you upload the sketch? It sounds like you only did burn bootloader, and never uploaded the sketch to blink the led...

Also, that tutorial makes things a lot harder than they have to be in terms of setting up the IDE - with 1.6.4 and later you can use board manager to install a core (like mine) , and not have to fart around with boards.txt.

You were right :smiley: Thank you.

If you are "AntiMicrosoft", what OS are you using? :sunglasses: