Commit 29f09200 authored by Frater's avatar Frater
Browse files

Update LED.MD

parent fcd24bf0
LED
All LEDs are in fact 2 LED (one red and one green) and seems to be connected to separated pins from the controller, or at least can be addressed by the controller following this addresses design:
All LEDs are in fact 2 LED (one red and one green) and seems to be connected to separated pins from the controller, or at least addressed by the controller like this
LED 1 (r) = 1
```
LED 1 (r) = 1
LED 1 (g) = 2
LED 2 (r) = 3
```
```
LED 2 (r) = 3
LED 2 (g) = 4
LED 3 (r) = 5
```
```
LED 3 (r) = 5
LED 3 (g) = 6
```
There is no zero LED
the commands to address the LED status is 0x1B 0x4C _STATUS_
_STATUS_ byte is divided in two parts:
4 high bits are used to define the LED id,
1 low bit is used to define the status (on/off)
So Led's can controlled with the following (pseudo-c) code:
```
#define LED_STATUS_ON 0x01
#define LED_STATUS_OFF 0x00
#define LED_1_RED 0x10
#define LED_1_GREEN 0x20
#define LED_2_RED 0x30
#define LED_2_GREEN 0x40
#define LED_3_RED 0x50
#define LED_3_GREEN 0x60
void SetLed(unsigned char ledid,unsigned char status)
{
unsigned char cmd[3];
the commands to address the LED status is 0x1B 0x4C _status_
cmd[0] = "\x1b";
cmd[1] = "\x4c";
cmd[2] = (unsigned char) (ledid + status);
Status byte was divided in two part 4 high bits define the LED id, and 4 low bits define
SerialPtr_writebuffer(cmd,3);
}
SetLed(LED_1_GREEN, LED_STATUS_ON);
```
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