Arduino Lab 2 0

Arduino Lab 2.0 Interfacing Computer

Pre-requisite Arduino Lab 1.X Same material, installation Understanding of - setup, - loop, - output, - delay - digitalWrite,pinMode - High, Low

Serial Interface Fundas Computer can send/received data serially thru RS232 port. Popular devices on RS232 port are Mouse, Modem, printer, another computer (devices are not very popular now a days) Hyperterminal in windows is the popular prodgram to send/received data. Need to deﬁne bit rate and serial port number.

Setup Serial.begin is a single line command to deﬁne that serial port is used. The parameter in paranthesis is the baud rate. Remember to set same baud rate in computer void setup() { Serial.begin(9600); }

Loop Serial.println command will send the data on serial port of arduino. The data is deﬁned as parameter. void loop() { Serial.println("Hello World"); delay(1000); } This just send string Hello World once every second.

Logic In setup, deﬁne that serial port is required, set the baud rate. In loop, send some data to serial port. Data is given within quotes. Delay is given before data is send again

Variations Serial.print - just send the data Serial.println - send data and then add line feed and move to beginneing of line. To print value of variable use Serial.print(Variable,DEC).

Contact Me Have more ideas, queries, suggestions? Contact me at - Vinay Chaddha email : vinay@joy-n-freedom.com SMS : 9811074026

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Arduino Lab 2 0

by Vinay Chaddha on Dec 01, 2009

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