The URB Unit – Making Arduinos Network

1// WWW.ARDUINORAILWAYCONTROL.COM
2// V.1.0  10/18/2018
3// URB #1  
4// Protocol V.2 & URB unit V.2.7 and higher
5// Author: Steve Massikker
6//  --------------------------------------------
7
8void(* resetFunc) (void) = 0;  // RESET FUNCTION
9
10#include <SoftwareSerial.h>
11#include <Wire.h>
12
13//  I/O PINS
14
15#define SENSOR_J1_PIN    9
16#define SENSOR_J3_PIN    11
17
18SoftwareSerial  Bluetooth(12, 13); // RX, TX
19
20// VARIABLES
21
22  // SERIAL EVENT
23  bool  stringComplete = false;
24  String inputString = "";
25
26  // I2C
27  int  addressI2C;  
28  byte dataToI2C = 0;
29
30
31void setup() {
32
33// Initialize  Serial & I2C
34  Serial.begin(9600);
35  Bluetooth.begin(9600);
36  Wire.begin();
37  inputString.reserve(4);
38
39// Initialize Sensors
40  pinMode(SENSOR_J1_PIN,  INPUT);
41  pinMode(SENSOR_J3_PIN, INPUT);
42
43}
44
45void loop() {
46
47//  ----  PARSING INCOMING APP COMMANDS
48  if (stringComplete) {
49
50    // CONTROL  FUNCTIONS
51    if (inputString.charAt(0) =='a') {
52      if (inputString.charAt(1)  =='d') {
53        if (inputString.charAt(2) =='b') {
54          dataToI2C =  30;
55          addressI2C = 2;
56          sendDataViaI2C();
57          delay(150);  
58        }
59        if (inputString.charAt(2) =='f') {
60          dataToI2C  = 31;
61          addressI2C = 2;
62          sendDataViaI2C();
63          delay(150);           
64        } 
65      }  
66    }  
67
68    inputString = "";
69    stringComplete = false;
70
71  }
72
73  // ---- COLLECT SENSORS STATE
74
75  if (digitalRead(SENSOR_J1_PIN) == HIGH) {
76    dataToI2C = 30;
77    addressI2C  = 2;
78    sendDataViaI2C();
79    delay(150);     
80  }
81
82  if (digitalRead(SENSOR_J3_PIN)  == HIGH) {
83    dataToI2C = 31;
84    addressI2C = 2;
85    sendDataViaI2C();
86    delay(150); 
87  }  
88
89
90  bluetoothEvent();
91}
92
93// -----------  FUNCTIONS ----------- //
94
95void serialEvent() {
96  if (Serial.available())  {
97    char inChar = (char)Serial.read();
98    inputString += inChar;
99    if  (inChar == 'z') {
100      stringComplete = true;
101    }
102  }
103}
104
105void  bluetoothEvent() {
106  if (Bluetooth.available()) {
107    char inChar = (char)Bluetooth.read();
108    inputString += inChar;
109    if (inChar == 'z') {
110      stringComplete =  true;
111    }
112  }
113}
114
115void sendDataViaI2C() {
116  Wire.beginTransmission(addressI2C);
117  Wire.write(dataToI2C);
118  Wire.endTransmission();
119}

1// WWW.ARDUINORAILWAYCONTROL.COM
2// V.1.0  10/18/2018
3// URB #2  
4// Protocol V.2 & URB unit V.2.7 and higher
5// Author: Steve Massikker
6//  --------------------------------------------
7
8#include <Wire.h>
9#include  <Servo.h>
10
11// I/O PINS
12
13#define JUNCTION_EN 8
14// Servo J1;
15//  Servo J2;
16Servo J3;
17
18// VARIABLES
19unsigned long millisJunction;
20byte  dataFromI2C;
21
22void setup() {
23
24// Initialize I2C
25  Wire.begin(2);
26  Wire.onReceive(receiveI2C);
27
28// Initialize Servos
29  // J1.attach(9);
30  // J2.attach(10);
31  J3.attach(11); 
32
33}
34
35void loop() {
36  // COMMAND  PARSING
37  if (dataFromI2C != 0) {
38    switch (dataFromI2C) {
39
40    //  SERVO
41    case 30: J3.write(180);
42         delay(50);
43         digitalWrite(JUNCTION_EN,  HIGH);
44         millisJunction = millis();
45         break;
46
47    case  31: J3.write(0);
48         delay(50);
49         digitalWrite(JUNCTION_EN, HIGH);
50         millisJunction = millis();
51         break;
52    
53    }
54
55  dataFromI2C = 0;
56  }
57  
58  if (millis() > (millisJunction + 800)) digitalWrite(JUNCTION_EN,  LOW); // AUTO ON/OFF POWER ON SERVO
59}
60
61// ----------- FUNCTIONS -----------  //
62
63void receiveI2C(int howMany) {
64  while (Wire.available() > 0) {
65    dataFromI2C = Wire.read();
66  }
67}

1// WWW.ARDUINORAILWAYCONTROL.COM
2// V.1.0  10/18/2018
3// URB #2   
4// Protocol V.2 & URB unit V.2.7 and higher
5// Author: Steve Massikker
6//   --------------------------------------------
7
8#include <Wire.h>
9#include   <Servo.h>
10
11// I/O PINS
12
13#define JUNCTION_EN 8
14// Servo J1;
15//   Servo J2;
16Servo J3;
17
18// VARIABLES
19unsigned long millisJunction;
20byte   dataFromI2C;
21
22void setup() {
23
24// Initialize I2C
25  Wire.begin(2);
26   Wire.onReceive(receiveI2C);
27
28// Initialize Servos
29  // J1.attach(9);
30   // J2.attach(10);
31  J3.attach(11); 
32
33}
34
35void loop() {
36  // COMMAND   PARSING
37  if (dataFromI2C != 0) {
38    switch (dataFromI2C) {
39
40    //   SERVO
41    case 30: J3.write(180);
42         delay(50);
43         digitalWrite(JUNCTION_EN,   HIGH);
44         millisJunction = millis();
45         break;
46
47    case   31: J3.write(0);
48         delay(50);
49         digitalWrite(JUNCTION_EN, HIGH);
50          millisJunction = millis();
51         break;
52    
53    }
54
55   dataFromI2C = 0;
56  }
57  
58  if (millis() > (millisJunction + 800)) digitalWrite(JUNCTION_EN,   LOW); // AUTO ON/OFF POWER ON SERVO
59}
60
61// ----------- FUNCTIONS -----------   //
62
63void receiveI2C(int howMany) {
64  while (Wire.available() > 0) {
65     dataFromI2C = Wire.read();
66  }
67}