void SerialInterface::serialReadChar(char value)
{
rxBuffer.write(value);
if(value==DEFAULT_LINEFEED){
char data[SERIAL_BUFFER_LENGTH];
for(int i=0;i<SERIAL_BUFFER_LENGTH;i++){
if(rxBuffer.isEmpty()){
data[i]=0;
break;
}
data[i]=rxBuffer.read();
if(data[i]==DEFAULT_LINEFEED||i>=SERIAL_BUFFER_LENGTH-1){
data[i]=0;
serialReadString(data);
break;
}
}
}
}
void loop()
{
switch (rs485State)
{
case Rs485Loopback:
serialReadString();
serialWriteString();
break;
case Rs485RxTest:
if (TIMER_COUNT_1S < timerCounter)
{
Serial.write("~!EloHello$75~");
timerCounter = 0;
}
break;
case Rs485TxTest:
serialReadString();
break;
default:
break;
}
// Create a client connection
EthernetClient client = server.available();
if (client)
{
while (client.connected())
{
if (client.available())
{
char c = client.read();
//read char by char HTTP request
if (readString.length() < 100) {
//store characters to string
readString += c;
}
//if HTTP request has ended
if (c == '\n')
{
//controls the Arduino if you press the buttons
if (readString.indexOf("?button485Loopback") >0) changeRs485Mode(Rs485Loopback);
else if (readString.indexOf("?button485RxTest") >0) changeRs485Mode(Rs485RxTest);
else if (readString.indexOf("?button485TxTest") >0) changeRs485Mode(Rs485TxTest);
//clearing string for next read
readString="";
client.println("HTTP/1.1 200 OK"); //send new page
client.println("Content-Type: text/html");
client.println("Refresh: 5"); // refresh the page automatically every 5 sec
client.println();
client.println("<HTML>");
client.println("<HEAD>");
refreshSection(client);
client.println("<meta name='apple-mobile-web-app-capable' content='yes' />");
client.println("<meta name='apple-mobile-web-app-status-bar-style' content='black-translucent' />");
client.println("<link rel='stylesheet' type='text/css' href='http://randomnerdtutorials.com/ethernetcss.css' />");
client.println("<TITLE>RS-485 - RET tester</TITLE>");
client.println("</HEAD>");
client.println("<BODY>");
client.println("<H1>RS-485 - RET tester</H1>");
client.println("<hr />");
client.println("<br />");
client.println("<H2>RS-485 mode</H2>");
client.println("<a href=\"/?button485Loopback\"\">1. RS-485 Loopback</a>");
client.println("<a href=\"/?button485RxTest\"\">2. RS-485 RX Test</a>");
client.println("<a href=\"/?button485TxTest\"\">3. RS-485 TX Test</a>");
client.println("<br />");
client.println("<H2>RET Status</H2>");
// DC Voltage section
// RS485 section
client.print("<a style=\"background-color:#4DB257\">RS-485 mode: "); //
client.print(rs485State);
client.println("</a> <br />");
client.println("<br />");
// Last 10 received messages section
client.print("<H2>Last ");
client.print(MSG_BUFFER_SIZE);
client.println(" received messages</H2>");
char counter = msgBuffer.counter;
for(char i = 0; i < MSG_BUFFER_SIZE; ++i)
{
client.print(msgBuffer.readString[counter]);
client.println("<br />");
if (--counter < 0) counter = MSG_BUFFER_SIZE-1;
}
client.println("<br />");
client.println("</BODY>");
client.println("</HTML>");
delay(1);
//stopping client
client.stop();
}
}
}
}
}
