@Max: Yes, i did programm my Tiny’s with help of this page.
@OddBot: Yes i know, but I want to build my own one Also want to use it as a educational board for our workshops.
@mogul: Yes i know that too. We had already trouble to fit the program into that tiny memory. But on the other hand, it’s only for projects which does not require more than the Tiny can offer. I don’t want to build a 4-leg walker with that. For programming purpose, we are going to include a standard 6-pin ISP header.
Here is the 6-pin header already included, buit the µC is an Attiny2313, not the 85
I was about to be upset that you could get your board built inside of 27mm ^2, then I noticed that you didn’t have a vreg on board and I was happier. I would have suggested looking at https://www.robotshop.com/letsmakerobots/node/32665 my board, but, the PIC and AVR are just too different to be able to make them interchangeable.
Oh, there’s enough room to squize in a TO92 v-reg (about 250mA) on Lumi’s board. As for yours, you can make it smaller if you use a 2 layer board. It all depends on your needs. Of course, if you use SMD, you can make it smaller than a quarter. But anyway, both boards look nice, congrats both of you!
There is still room for more components and as I said, the board is far from finished yet. The voltage drop on the LED was not considered, just the space the LED will occupy
Looking at it I could have rotated the resistor around so the ground would be in line with the grounds on the 3 pin headers. Slide the LED back towards the resistor. Rotate the 2 pin power header CW and move it back toward the LED. You might have enough room for a vreg and a capacitor. If you stand the resistor up, you might be able to get the LED back inline with the power rail of the 3 pin headers.
Haha, it’s never final But i think this one is hard to beat. I do not have much time right now but I also will improve my Attiny PCB. I hope to get it smaller than it’s now by separating and relocating the I/O header pins. They do not have to be in one big block right
I noticed something on your newest design that caught me too.
Your current limiting resistor should be between either the power and anode or ground and cathode, not, in parallel with the LED. It won’t affect board size only circuit layout.