I wanted to check out the GPIO ports on the Raspberry Pi B+. The new B+ has 26 ports available for GPIO work. The previous model B had 17 on the main (P1) header and four more on the now deleted P5 header. The top 26 pins are all the same, but the 14 new pins contain 9 GPIO ports. There’s a full explanation of the ports in the diagram here… How to Test All 26 ports? Why with LEDs of course. You can do it by connecting an LED and resistor (~330 Ohms is […more…]