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Topic: Arduino question (Read 795 times) previous topic - next topic

Arduino02

Is there a way to send commands to the arduino over a serial connection. I want to be able to control a servo via a serial connection to the computer. My arduino will be here Thursday along with a breadboard wires and a servo. Thank you very much.

johnwasser

You will need to shift the voltage levels because the RS323 serial port uses positive and negative voltages higher than Arduino can accept.  You want 0-to-5V (TTL) signal levels.  Look at the "Single Sided Serial" Arduino design for the basic circuitry.
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