GPIO - Cobbler pinouts
Posted: Mon Nov 28, 2016 3:42 am
Okay, so I've had a PiB that I played with a little 4 or so years ago, I added a pi 2B about a year ago, then just recently acquired a Pi3B. Initially I was intrigued by the software, but am looking to experiment with IOT, so having both a PiB (v2, I think) with 26 pin GPIO and a 2B and 3B with 40 pin GPIO how do I make since of differences in pinouts? I bought a Viaboot.com 40 pin T-Cobbler for the 2B and 3B and then last week a 26 pin T-Cobbler for the 1B the major difference between the two from my perspective is that the Viaboot plugs into a breadboard on a 2X20 matrix, the 26 pin T-Cobbler splits power and GND off onto the 'T' with 3.3V + GND on one side and 5V + GND on the other in the power columns of the breadboard, then there are only 2X9 pins connected down the breadboard! Looking at the projects on raspberry.org and elsewhere, either physical pinouts are quoted, 1-26 or 1-40 or the slightly more cryptic but probably more meaningful GPIO numbering scheme, which I don't fully understand as yet but seems easy to follow except for my cobblers! does anyone have a way I can 'map' the two, without sitting down and doing it with a multimeter? Is anyone familiar with the products? The viaboot.com 40 pin t-Cobbler or the seemingly generic 26 pin I have too? (see attached photo), Any help would be much appreciated.