Led Interfacing With Arduino Circuit Diagram. Led blink codearduino copy and paste this code into your arduino ide or web editor int led 13. The following image shows the circuit diagram of arduino at24c256 eeprom interface.
In 16x2 lcd there are 16 pins over all if there is a back light if there is no back light there will be 14 pins. The pin the led is connected to void setup pinmode led output declare the led as an output void loop digitalwrite led high turn the led on delay 1000 wait for 1000 milliseconds 1 second digitalwrite led. The following image shows the circuit diagram of arduino at24c256 eeprom interface.
There is a led for each pixel and these leds are connected to total of 16 pins.
In this tutorial we are going to interface a single color 8 8 led matrix with arduino and display a few characters in it. Now let s learn interfacing of switch and arduino here we will use switch to take input signal to the microcontroller so that we will be able to interface more input devices to the microcontroller like sensors output as input to microcontroller. For writing the code you need not download any additional libraries as we are going to use only the wire library which comes with arduino ide. The following image shows the circuit diagram of arduino at24c256 eeprom interface.
