LED Array Jacket

From NYC Resistor Wiki

* LED Arrays Completed.
* LED Arrays wired to driver IC.
* Arduino was wired to the driver IC, until the TSA decided to unwire it.
* Rewired again, could use some cleanup.
* Rebuilt Left Array due to LED burnout as result of defective resistor on current ref.
* Bluetooth module has been acquired, but I have not had time to work with it yet.
> Working on Scrolling Code for Display

[edit] Test Code for MAX6952 on Arduino

```
// Max 6952 Example Code For Arduino
```
```
// Tested on Boarduino
```
```
// Matt Joyce @ NYC Resistor
```
```
 
```
```
#define DATAOUT 11//MOSI
```

#define DATAIN 12//MISO - not used, but part of builtin SPI

```
#define SPICLOCK  13//sck
```
```
#define SLAVESELECT 10//ss
```
```
 
```
```
char spi_transfer(volatile char data)
```
```
{
```
```
  SPDR = data;
```
```
  // Start the transmission
```

  while (!(SPSR & (1<<SPIF)))     // Wait the end of the transmission

```
  {
```
```
  };
```

  return SPDR;                    // return the received byte

```
}
```
```
 
```
```
void setup()
```
```
{
```
```
  byte i;
```
```
  byte clr;
```
```
  pinMode(DATAOUT, OUTPUT);
```
```
  pinMode(DATAIN, INPUT);
```
```
  pinMode(SPICLOCK,OUTPUT);
```
```
  pinMode(SLAVESELECT,OUTPUT);
```

  digitalWrite(SLAVESELECT,HIGH); //disable device

```
  // SPCR = 01010000
```

  //interrupt disabled,spi enabled,msb 1st,master,clk low when idle,

  //sample on leading edge of clk,system clock/4 (fastest)

```
  SPCR = 0b01010010;  
```
```
  clr=SPDR;
```
```
  delay(32);
```
```
     // Configure Register
```
```
     write_led_twice(0x04,0x01);
```
```
     // Intensity Pane 1 and Pane 2
```
```
     write_led_twice(0x01,0xFF);
```
```
     write_led_twice(0x02,0xFF);
```
```
     // Scan Limit
```
```
     write_led_twice(0x03,0x01);
```
```
 
```
```
}
```
```
 
```
```
byte write_led(int address, int value)
```
```
{
```
```
  digitalWrite(SLAVESELECT,LOW);
```
```
  //2 byte opcode
```
```
  spi_transfer(address);
```
```
  spi_transfer(value);
```
```
 
```
```
  delay(36);
```

  digitalWrite(SLAVESELECT,HIGH); //release chip, signal end transfer

```
}
```
```
 
```

// Write n times for n chips daisy chained.

byte write_led_twice(int address, int value)

```
{
```
```
  digitalWrite(SLAVESELECT,LOW);
```
```
  //2 byte opcode
```
```
  spi_transfer(address);
```
```
  spi_transfer(value);
```
```
  spi_transfer(address);
```
```
  spi_transfer(value);
```
```
  delay(36);
```

  digitalWrite(SLAVESELECT,HIGH); //release chip, signal end transfer

```
}
```
```
 
```
```
void loop()
```
```
{
```
```
     // Testing ROM Character Set
```
```
     write_led_twice(0x20,0x5e);
```
```
     write_led_twice(0x21,0x5e);
```
```
     write_led_twice(0x22,0x5e);
```
```
     write_led_twice(0x23,0x5e);
```
```
     delay(4000);
```
```
     // Testing Programmable RAM Space
```
```
     write_led_twice(0x05,0x80);
```
```
     write_led_twice(0x05,0x42);
```
```
     write_led_twice(0x05,0x61);
```
```
     write_led_twice(0x05,0x51);
```
```
     write_led_twice(0x05,0x49);
```
```
     write_led_twice(0x05,0x46);
```
```
     write_led_twice(0x20,0x80);
```
```
     write_led_twice(0x21,0x80);
```
```
     write_led_twice(0x22,0x80);
```
```
     write_led_twice(0x23,0x80);
```
```
     delay(4000);
```
```
     // Gred Test Register Call
```
```
     write_led_twice(0x07,0x01);
```
```
 
```
```
     delay(1000);     
```
```
     // Turn off Test Register
```
```
     write_led_twice(0x07,0x00);
```
```
}
```

[edit] Creator

Matt Joyce Thanks to all of NYC resistor for support.

LED Array Jacket

From NYC Resistor Wiki

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