Here this project shows how to communicate with arduino serial terminal? For an application we have chosen four LEDs to indicate direction.
In a bread board four LEDs are placed in different direction and the Arduino sketch composed to control those LEDs with computer numeric key by pressing particular key we can get output.
Step 1: Circuit Diagram
Step 2: Arduino Serial Communication Sketch Code
Get Arduino serial communication sketch code here: http://www.theorycircuit.com/serial-communication-with-arduino/
This Arduino code can be modified to get desired input and output.
Step 3: Components List
S.No Name Quantity
1. Arduino uno 1
2. LED 4
3. Resistor-220Ω 4
4. Connecting wires as required