There's always a short URL in the MagPi articles. Top right corner of page #47 in this case.
takes you to "Mr. Goode's" link.
Microprocessor, Raspberry Pi & Arduino Hacker
Mainframe database troubleshooter
2012-18: 1B*5, 2B*2, B+, A+, Z, ZW, 3Bs*3, 3B+
Any DMs sent on Twitter will be answered next month.