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POHow can I digitalRead a pin and convert data to String on Arduino?
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  1. POHow can I digitalRead a pin and convert data to String on Arduino?
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    copied!<p>I'm doing a communication system with 2 Arduinos Leonardo. To transmit I had to convert a String in bits and send them through a PWM pin. The question is, how can I do the receiver?</p> <p>My idea is to receive data in a digital pin, so I can convert LOW/HIGH to '0' and '1', put 8 bits in a string, convert to char and then I have my final String.</p> <p>Some info: - I'm using PWM because I want to implement FSK modulation, sending bit by bit;- - I have some hardware to get communication system working; - My physical channel for communication is Serial (via Arduino pins); - In the receiver hardware will provide me TTL signals, so I will have 0V/5V. That's why I think digitalRead() should work; - Data is sent via PWM and received in two level signals; - I'll have to do some protocol to send/receive data, but still don't know how...</p> <p>This is the code I wrote:</p> <pre><code>void setup() { Serial.begin(9600); while (!Serial) {;} } void loop() { char bitPosition = 0; String inMessage = 0; while (Serial.available() &gt; 0) { char outChar; boolean digValue = digitalRead(inPin); for(bitPosition = 7; bitPosition &gt;= 0; ){ if(digValue == LOW){ bitWrite(outChar, bitPosition, 0); } if(digValue == HIGH){ bitWrite(outChar, bitPosition, 1); } bitPosition--; } inMessage.concat(outChar); if(inMessage != 0){ Serial.println("Received: " + inMessage); } } } </code></pre> <p>I want this code to transform HIGH/LOW states from digitalRead in a string of characters. 0/1 -> char (outChar) -> String (inMessage). I don't know if i'm not thinking right. Suggestions? Should I have to do something about baudrate to receive/transmit data? How?</p> <p>Any help/suggestion would be appreciated.</p>
 

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