I'm trying to build a application, that reads a BarCode via a PS/2 reader with Arduino, and sends it to a MySQL DB, this's the code that I'm using, but it seems like isn't working with the PHP part. What I'm doing wrong?? Thanks for any help and sorry for any english mistake.
#include <PS2Keyboard.h>
#include <SPI.h>
#include <Ethernet.h>
byte mac[] = { 0xDE, 0xAD, 0xBE, 0xEF, 0xFE, 0xED }; // RESERVED MAC ADDRESS
EthernetClient client;
int SCAN_ENTER = 0x5a; int SCAN_BREAK = 0xf0;
int breakActive = 0;
int clockPin = 3; // Clock is only output.
int dataPin = 2; // The data pin is bi-directional
// But at the moment we are only interested in receiving
int ledPin = 13; // When a SCAN_ENTER scancode is received the LED blink
int clockValue = 0; byte dataValue;
byte scanCodes[10] = {0x45,0x16,0x1e,0x26,0x25,0x2e,0x36,0x3d,0x3e,0x46}; char characters[10] = {'0', '1', '2', '3', '4', '5', '6', '7', '8', '9'};
int quantityCodes = 10;
char buffer[64] = {}; // This saves the characters (for now only numbers)
int bufferPos = 0;
int bufferLength = 64;
void setup() {
pinMode(dataPin, INPUT);
pinMode(clockPin, INPUT);
pinMode(ledPin, OUTPUT);
Serial.begin(9600);
if (Ethernet.begin(mac) == 0) {
Serial.println("Failed to configure Ethernet using DHCP");
}
}
void loop() {
dataValue = dataRead();
// If there is a break code, skip the next byte
if (dataValue == SCAN_BREAK) {
breakActive = 1;
}
// Translate the scan codes to numbers
// If there is a match, store it to the buffer
for (int i = 0; i < quantityCodes; i++) {
byte temp = scanCodes[i];
if(temp == dataValue){
if(!breakActive == 1){
buffer[bufferPos] = characters[i];
bufferPos++;
}
}
}
//Serial.print('*'); // Output an asterix for every byte
// Print the buffer if SCAN_ENTER is pressed.
if(dataValue == SCAN_ENTER){
Serial.print(""); //Texto antes do codigo
// Read the buffer
int i=0;
if (buffer[i] != 0) {
while(buffer[i] != 0) {
Serial.print( buffer[i] );
buffer[i] = 0;
i++;
}
Serial.println("");
bufferPos = 0;
// Blink the LED
digitalWrite(ledPin, HIGH);
delay(300);
digitalWrite(ledPin, LOW);
}
if (client.connect("192, 168, 0, 66",80)) { // REPLACE WITH YOUR SERVER ADDRESS
client.println("POST /add.php HTTP/1.1");
client.println("Host: 192, 168, 0, 66"); // SERVER ADDRESS HERE TOO
client.println("Content-Type: application/x-www-form-urlencoded");
client.print("Content-Length: ");
client.println(buffer[i]);
client.println();
client.print( buffer[i] );
}
}
if (client.connected()) {
client.stop(); // DISCONNECT FROM THE SERVER
}
if(dataValue != SCAN_BREAK){
breakActive = 0;
}
dataValue = 0;
}
int dataRead() {
byte val = 0;
// Skip start state and start bit
while (digitalRead(clockPin)); // Wait for LOW.
// clock is high when idle
while (!digitalRead(clockPin)); // Wait for HIGH.
while (digitalRead(clockPin)); // Wait for LOW.
for (int offset = 0; offset < 8; offset++) {
while (digitalRead(clockPin)); // Wait for LOW
val |= digitalRead(dataPin) << offset; // Add to byte
while (!digitalRead(clockPin)); // Wait for HIGH
}
// Skipping parity and stop bits down here.
while (digitalRead(clockPin)); // Wait for LOW.
while (!digitalRead(clockPin)); // Wait for HIGH.
while (digitalRead(clockPin)); // Wait for LOW.
while (!digitalRead(clockPin)); // Wait for HIGH.
return val;
}
