# UNO Monitor
UNO Monitor is my first attempt at prototyping an Arduino UNO based LCD and LED external display with IR remote controller.


## Requirements
### Hardware
Ardurino UNO  
LCD1602 LCD module  
10k Potentiometer  
220 Resistor  
Max7219 LED dot matrix module  
IR reveiver module /w remote  


### Software
 Latest Arduino (v1 or v2) IDE  
 Linux Bash (for monitor_sender.sh) (not tested on WSL/WSL2)  
  or  
 Linux (C daemon: unomodD) (not tested on WSL/WSL2)  


#### Headers
[Liquid Crystal library](http://www.arduino.cc/en/Reference/LiquidCrystal)  
[LedControl library](https://www.arduino.cc/reference/en/libraries/ledcontrol)  
[IRremote library](http://github.com/shirriff/Arduino-IRremote)  


### Pin Outs
LCD Pinout:
 * LCD RS pin to digital pin 12
 * LCD Enable pin to digital pin 11
 * LCD D4 pin to digital pin 5
 * LCD D5 pin to digital pin 4
 * LCD D6 pin to digital pin 3
 * LCD D7 pin to digital pin 2
 * LCD R/W pin to ground
 * LCD VSS pin to ground
 * LCD VCC pin to 5V
 * 10K resistor:
 *  ends to +5V and ground
 *  wiper to LCD VO pin (pin 3)

LED Pinout:
 * LED DataIn(DIN) to digital pin 10
 * LED LOAD(CS) to digital pin 9
 * LED CLK to digital pin 8
 * LED VSS pin to 5V
 * LED GND to ground

IR Pinout
 * IR Signal to digital pin 13
 * IR VSS pin to 5V
 * IR GND to ground


### Communication
#### Serial Input Schema
Start char is: '#'  
End char is: '@'  
2nd char denotes which line number/mode to use  
The LAVG line should be a whole integer 0-100 for the system load or other similarly ranged value  

Setting Schema:
 * LCDLength:LCDDelay:LEDBrightness:LEDDelay
 * 16:5:1:3

Example:  
 * Line 1: #1Archamedis Status@  
 * Line 2: #299% free / etc.@  
 * LAVG 3: #324@
 * LSET 0: #016:5:1:3@


#### Serial Output Schema (IR commands)
Multimedia Controls use single characters to denote which button was pressed:
 *    P power
 *    M mute
 *    m mode
 *    p pause/play
 *    b back
 *    f forward
 *    e eq
 *    -- vol down
 *    ++ vol up
 *    r return
 *    u usb scan
 *    0 number 0
 *    1 number 1
 *    2 number 2
 *    3 number 3
 *    4 number 4
 *    5 number 5
 *    6 number 6
 *    7 number 7
 *    8 number 8
 *    9 number 9
 *    R repeat
 *    Z other button pressed