GPIO connection with LED
GPIO Connection with LED A simple way to connect led with beagle bone black. Actually, I am using P9_23 (gpio_49) pin to connect with led. In that circuit Led Anode(+) is directly connected to gpio_49 and cathode(-) is connected to PCB Negative(-). I am directly connect led to GPIO because it gives 3.3v supply, it is sufficient to glow the color led's. If u are using white led better to add 220ohm resistor to the anode side. NOTE: Make sure the POWER SUPPLY is given to the breadboard taken from beaglebone only. Once root or restart your board you need to enable GPIO pin again. The following commands are used to enable the GPIO and toggle the led ...