Top positive review
7 people found this helpful
Best proto board for the mega that I could find
on November 6, 2012
#1 The board allows you to stack another board on top of it. The row next to the standard pin location is connected to the pin row. This allows you to use whatever pins you want and leave the rest alone which may pass on to the card you stack on top. This is true for even the double row of digital pins on the end. Their duplicate is the white strip.
#2 The double row connected in the middle is positive and negative. You select 3.3v or 5v by soldering in a jumper.
#3 TWI/I2C has 4 connections in addition to the standard connections on pins 20 & 21.
#1 is the most important and I couldn't find any other board like it.