Odd choice...
Odd choice of chip to use to go with the article. That's a Raspberry Pi 2 Model B v1.1 (Pi2Bv1.1). The RPF quit making that variant in favor of the v1.2, which uses the BCM2837 some time back. (I'm waiting to see if the BCM2837B0 shows up on the Pi2Bv1.2 since it is now used on the Pi3B.)