November 2012

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Understanding data types is especially important if you wish to use serial communication to send data to your Arduino and have the ATmega328 act on this data. Serial data is read from the serial buffer using a sequence of commands like this. if (Serial.available()>0) { // there are bytes in the serial buffer to read

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The program below is capable of summing a sequence of single digit numbers typed into the Arduino IDE serial terminal. For example, if 2+4-5+1= where typed into the terminal the output would be 2+4-5+1=2 Upload this program to your Arduino board and try it out. Notice that the program breaks if the very strict syntax

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Serial communication between computers and/or microcontrollers allows messages to be sent using a single wire. The message takes the form of a series of voltage pulses that encode a sequence of zeros and ones. There are two main protocols for serial communication, TTL and RS232. The major difference between the two is the voltages that