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Demo video
Source code
/*
* Web Admin 透過 web service 提供網頁監控功能。透過 GET 送命令取回 http 資料。
* 接法：
* digital pin2：DC SWITCH
* pin10：W5100
* pin11：W5100
* pin12：W5100
* pin13：W5100(SPI)
* analog pin1：CT sersor
* GET 命令：
* b=00：第一行傳現在裝置狀態
* b=01：DC on
* b=02：DC off
* b=03：AC on
* b=04：AC off
* b=05：換 IP：192.168.1.251
* b=06：換 IP：192.168.1.250
*/
#include <Ethernet.h>
#include <NewSoftSerial.h>
//#include <string.h>
// W5100 configuration
byte mac[] = { 0xDE, 0xAD, 0xBE, 0xEF, 0xFE, 0xED };
byte ip[] = { 192, 168, 1, 250 };
Server server(80);
// set pin 9 as RX
uint8_t ssRX = 6;
// set pin 10 as TX
uint8_t ssTX = 7;
// enable soft serial nss
NewSoftSerial nss(ssRX, ssTX);
// initial
#define id 1 // device ID
#define DC_V 400
#define DC_read 0
#define DC_control 2
#define AC_V 110
#define AC_read 1
#define AC_control 3
int analog_val; // analog value read from UART
void setup()
{
Ethernet.begin(mac, ip);
server.begin();
Serial.begin(9600);
nss.begin(9600);
pinMode(DC_control, OUTPUT);
pinMode(AC_control, OUTPUT);
pinMode(6, OUTPUT);
pinMode(7, OUTPUT);
}
void loop()
{
Client client = server.available();
// detect if current is the first line
boolean current_line_is_first = true;
// command code
char command[3] = "\0";
if (client) {
// an http request ends with a blank line
boolean current_line_is_blank = true;
while (client.connected()) {
if (client.available()) {
char c = client.read();
// if we've gotten to the end of the line (received a newline
// character) and the line is blank, the http request has ended,
// so we can send a reply
if (c == '\n' && current_line_is_blank) {
// send a standard http response header
client.println("HTTP/1.1 200 OK");
client.println("Content-Type: text/html");
client.println();
// java script auto reload
client.println("<script language=\"javascript\">");
client.println("setTimeout(\"self.location.reload();\",4000);");
client.println("</script>");
// output the value of each digital and analog input pin
for (int i = 0; i < 14; i++) {
client.print("Digital Pin ");
client.print(i);
client.print(" is ");
client.print(digitalRead(i));
client.println("<br />");
}
for (int i = 0; i < 6; i++) {
client.print("Analog Pin ");
client.print(i);
client.print(" is ");
client.print(analogRead(i));
client.println("<br />");
}
// AC and DC value for smart scoket
/*
client.print("DC VAL = ");
client.print(analogRead(DC_read));
client.println("<br />");
client.print("AC VAL = ");
client.print(analogRead(AC_read));
client.println("<br />");
*/
client.println("<form method=get name=form>");
client.println("<button name=b value=01 type=submit>DC On</button>");
client.println("<button name=b value=02 type=submit>DC Off</button><br />");
client.println("<button name=b value=03 type=submit>AC On</button>");
client.println("<button name=b value=04 type=submit>AC Off</button>");
client.println("<button name=b value=05 type=submit>IP:251</button><br />");
client.println("<button name=b value=06 type=submit>IP:250</button>");
client.println("</form>");
break;
}
if (c == '\n') {
// we're starting a new line
current_line_is_first = false;
current_line_is_blank = true;
}
else if (c != '\r') {
// we've gotten a character on the current line
current_line_is_blank = false;
}
// get the first http request
if (current_line_is_first && c == '=')
{
for (int i = 0; i < 2; i++)
{
c = client.read();
command[i] = c;
}
// send all status
if (!strcmp(command, "00") )
{
client.print("ID="); client.print(id); client.print(",");
client.print("DC_voltage"); client.print(DC_V); client.print(",");
client.print("DC_val="); client.print(analogRead(DC_read)); client.print(";");
client.print("DC_control="); client.print(digitalRead(DC_control)); client.print(";");
client.print("AC_voltage"); client.print(AC_V); client.print(",");
client.print("AC_val="); client.print(analogRead(AC_read)); client.print(";");
client.print("AC_control="); client.print(digitalRead(AC_control)); client.println(";");
}
// DC control
if (!strcmp(command, "01") )
{
//Serial.println("high pin 2");
digitalWrite(DC_control, HIGH);
//nss.print("A");
//nss.print(byte(0x00));
}
if (!strcmp(command, "02") )
{
//Serial.println("low pin 3");
digitalWrite(DC_control, LOW);
//nss.print("A");
//nss.print(byte(0x02));
}
// AC control
if (!strcmp(command, "03") )
{
//Serial.println("high pin 2");
digitalWrite(AC_control, HIGH);
//nss.print("A");
//nss.print(byte(0x00));
}
if (!strcmp(command, "04") )
{
digitalWrite(AC_control, LOW);
}
// change IP
if (!strcmp(command, "05") )
{
byte ip[] = { 192, 168, 1, 251 };
Ethernet.begin(mac, ip);
server.begin();
}
if (!strcmp(command, "06") )
{
byte ip[] = { 192, 168, 1, 250 };
Ethernet.begin(mac, ip);
server.begin();
}
}
}
}
// give the web browser time to receive the data
delay(1);
client.stop();
// read from XBee
/*
if (nss.available())
{
analog_val = nss.read();
Serial.print("I read analog_val ");
Serial.println(analog_val);
}
*/
}
}
