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.
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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