Difference between revisions of "RFID"
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== Schematic == | == Schematic == | ||
| − | [[Image:Dserial_rfidschematic.png|thumb| | + | [[Image:Dserial_rfidschematic.png|thumb|600px|none|Wunderbaum Schematic]] |
The gate of NPN Mosfet is connected to PIN 6 of DSerial's IO1 | The gate of NPN Mosfet is connected to PIN 6 of DSerial's IO1 | ||
| Line 57: | Line 57: | ||
== Pictures == | == Pictures == | ||
| − | [[Image:Dserial_RFID_tree.jpg|thumb| | + | [[Image:Dserial_RFID_tree.jpg|thumb|600px|none|Wunderbauemchen Description]] |
| − | [[Image:Dserial_RFID_nds.jpg|thumb| | + | [[Image:Dserial_RFID_nds.jpg|thumb|600px|none|Wire Plan]] |
== PCB == | == PCB == | ||
[[Image:Midi-pcb-placement.gif|thumb|600px|none|PCB]] | [[Image:Midi-pcb-placement.gif|thumb|600px|none|PCB]] | ||
Revision as of 22:36, 30 November 2007
Contents
Description
A self-built RFID reader is connected to the DS via DSerial. It is part of the project "Nordlich BlitzPlay (RFID Guitar Hero III)". For details and concept of this pervasive game, please take your time and look at the website: http://www.ludic-society.net/blitz!
The signal lines are connected to DSerial CMOS-level UART at IO2 connector. Make sure to set baud rate to 9600baud. Please, make sure that you edited also mcu.h and the firmware according to the "Hello World LED" example (link).
Here is some sample code of the UartHandler: <cpp> int ledTimer = 10; void uartReceiveHandler(char * data, unsigned int size);
void uartReceiveHandler(char * data, unsigned int size) {
if((size > 0) && (size <= MAX_DATA_SIZE)){
char buffer[MAX_DATA_SIZE+1];
memcpy(buffer, data, size);
buffer[size] = '\0';
iprintf(buffer);
}
}
/* during initalization do following */
dseUartSetBaudrate(9600); dseSetModes(ENABLE_CMOS /* | ENABLE_SERVO */); dseUartSetReceiveHandler(uartReceiveHandler);
/* then somewhere else within the while(1) do: */
if (ledTimer>0) ledTimer--; if (ledTimer==0) {
ledTimer=-1;
{
ledTimer=-1; uint8 p1 = dseReadRegister(MCU_P1); dseWriteRegister(MCU_P1, p1 | 0xC0);
} if (ledTimer<0) { ledTimer=-1; }
</cpp>
Schematic
The gate of NPN Mosfet is connected to PIN 6 of DSerial's IO1
Parts
- [1] Core20 RFID Reader Module (works at 5Volt!)
- [2] IRF9014 MOSFET
- MAX232
- SMD Parts (Resistors, Capacitor, Coil)
