Created
November 19, 2012 18:45
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Arduino Web to LCD Service
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| You need: | |
| - Arduino | |
| - Ethernet Shield | |
| - Sparkfun Serial LCD Kit | |
| - Webduino library https://github.com/sirleech/Webduino | |
| - Buzzer (optional) | |
| Hook up: | |
| - Ethernet shield to Arduino | |
| - LCD: 5V and ground, serial to pin 3 | |
| - Buzzer: connect to pin 6 and ground | |
| Change the MAC address var in the code to match your shield's MAC, and assign it a valid IP address for your network. | |
| That's it. |
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| #include "SPI.h" | |
| #include "Ethernet.h" | |
| #include "WebServer.h" | |
| #include "SoftwareSerial.h" | |
| static uint8_t mac[] = { 0x00, 0x00, 0x00, 0x00, 0x00, 0x00 }; // change this to your Ethernet shield's MAC address | |
| static uint8_t ip[] = { 192, 168, 1, 2 }; // change to your network | |
| #define PREFIX "" | |
| WebServer webserver(PREFIX, 80); | |
| SoftwareSerial lcd(2,3); | |
| void showForm(WebServer &server, WebServer::ConnectionType type, char *, bool) { | |
| server.httpSuccess(); | |
| if (type != WebServer::HEAD) { | |
| if (type == WebServer::POST) { | |
| P(thxMsg) = "<!doctype HTML><html><body>Thanks!</body></html>"; | |
| server.printP(thxMsg); | |
| bool repeat; | |
| char name[16],value[32]; | |
| do { | |
| repeat = server.readPOSTparam(name,16,value,32); | |
| if (strcmp(name,"msg") == 0) { | |
| lcd.write(0xFE); | |
| lcd.write(0x01); | |
| lcd.print(value); | |
| tone(6,600,1000); | |
| } | |
| } while (repeat); | |
| } | |
| else { | |
| P(formMsg) = "<!doctype HTML><html><body><form name=\"input\" action=\"/\" method=\"post\"><input type=\"text\" name=\"msg\"><input type=\"submit\" value=\"send\"></form></body></html>"; | |
| server.printP(formMsg); | |
| } | |
| } | |
| } | |
| void setup() { | |
| Ethernet.begin(mac, ip); | |
| lcd.begin(9600); | |
| webserver.setDefaultCommand(&showForm); | |
| webserver.begin(); | |
| } | |
| void loop() { | |
| char buf[64]; | |
| int len = 64; | |
| webserver.processConnection(buf, &len); | |
| } |
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I modified this to work with the Parallax 16x2 backlit LCD display with piezo speaker here: https://gist.github.com/4385539. Hope this helps someone!