Perplexing Attiny88 board design?

[iskandarsyah0580]

pins_arduino.txt (2.5 KB)
I'm comparing the pinouts of the mh et tiny board vs the chip vs the attinycore macros.
The problem is the sda, scl and adc pins in the board (A) doesn't match that of the chips (B) and the macros (defined in pins_arduino.h) .
I also tested the pin numbering 0-27, i couldn't proceed with pin 1(not sure why? it kept on), 26 (not on board), and 27 (reset button related?)
ToggleLed.ino (1.8 KB)
and the led_builtin macro seems odd to be pointed at value 13 because from the test i did it should have been 0 (i forgot excatly 0 or 2)?

I wonder if there are things that we need to be wary of going forward with this in mind and the implication of it?

[johnwasser]

@iskandarsyah0580

I wonder if there are things that we need to be wary of going forward

Yes. When the board and the core are produced by different people you can never be sure that they have agreed on the labeling of pins.