For the LED to be blinking, you probably have the other end connected to a GPIO pin which is doing the switching on and off. I hope you put a series resistor between the LED and the GPIO pin...something on the order of 100 ohms, so that excess current is not driven into the GPIO port. One side of the LED has to be at a power supply value in order to be switched by the Pi GPIO pinjucasan wrote:I was trying to make the blinking LED program using the gpio's and was not working the way I was expecting. I started to troubleshoot and connected the + of the LED to the 3.3v output and the LED is blinking. My understanding is that pin is a continuous 3.3v. Why the LED connected to that pin is blinking?
Thanks