Smart Voltage Unit for projects

1inary file (no preview

1//  Arduino, HM-10, App Inventor 2
2//
3//  Example Project Part 2:  Turn an LED on and off 2 way control 01
4//  By Martyn Currey. www.martyncurrey.com
5//
6//  Pins
7//  BT VCC to Arduino 5V out. 
8//  BT GND to GND
9//  Arduino D8  (ASS RX) - BT TX no need voltage divider 
10//  Arduino D9 (ASS TX) - BT RX through  a voltage divider
11//  Arduino D2 - Resistor + LED
12//  Arduino D3 - 10K pull  down resistor + button switch
13
14
15// AltSoftSerial uses D9 for TX and D8  for RX. While using AltSoftSerial D10 cannot be used for PWM.
16// Remember to  use a voltage divider on the Arduino TX pin / Bluetooth RX pin
17// Download from  https://www.pjrc.com/teensy/td_libs_AltSoftSerial.html
18#include <SoftwareSerial.h>
19SoftwareSerial  ASSserial(8,9);
20
21// Constants for hardware
22const byte Relay_Pin = 12;
23const  byte SwitchPin = 3;
24
25// general variables
26boolean Relay_State = false;
27boolean  switch_State = false;
28boolean oldswitch_State = false;
29
30bool first = true;
31
32char  c=' ';
33
34
35void setup()  
36{
37    Serial.begin(9600);
38    Serial.print("Sketch:   ");   Serial.println(__FILE__);
39    Serial.print("Uploaded: ");   Serial.println(__DATE__);
40    Serial.println(" ");
41     
42    ASSserial.begin(9600); 
43    Serial.println("AltSoftSerial  started at 9600"); 
44    Serial.println(" ");
45
46    pinMode(Relay_Pin,  OUTPUT); 
47    digitalWrite(Relay_Pin,LOW);
48
49    pinMode(SwitchPin, INPUT);  
50          
51} // void setup()
52 
53 
54void loop()  
55{
56  checkSwitch();
57  checkRecievedData();
58}
59
60
61void checkSwitch()
62{
63     // Simple  toggle switch function with even simpler debounce.
64     boolean state1 = digitalRead(SwitchPin);
65     delay(1);
66     boolean state2 = digitalRead(SwitchPin);
67     delay(1);
68     boolean state3 = digitalRead(SwitchPin); 
69     
70     if ((state1 == state2)  && (state1==state3)){ 
71          switch_State = state1;  
72         
73          if  ( (switch_State == HIGH) && (oldswitch_State == LOW) ){
74               // toggle  Relay_State.
75               Relay_State = ! Relay_State;  
76               //  If Relay_State is HIGH then LED needs to be turned on.
77               if ( Relay_State  == HIGH) 
78               {  
79                    if(!first){
80                      digitalWrite(Relay_Pin,HIGH);   // turn on the Relay
81                      ASSserial.print("1");       //  tell the app the Relay is now on
82                      Serial.println("Sent  - 1");
83                    }else{
84                      first=false;
85                    }
86               }
87                                           
88               else                     
89               {  
90                   digitalWrite(Relay_Pin,LOW);    // turn off the Relay
91                   ASSserial.print("0");        //  tell the app the Relay is now off
92                   Serial.println("Sent -  0");    
93               }    
94          }          
95          
96          oldswitch_State  = switch_State;
97      }
98}
99
100
101void checkRecievedData()
102{
103     //  Read from the Bluetooth module and turn the LED on and off
104    if (ASSserial.available())
105    {
106        c = ASSserial.read();
107        Serial.println(c);
108 
109        //  The ascii code for 0 is dec 48
110        // The ascii code for 1 is dec 49
111        if ( c== '0') { digitalWrite(Relay_Pin, LOW);     Relay_State = LOW;}
112        if ( c== '1') { digitalWrite(Relay_Pin, HIGH);    Relay_State = HIGH; first=false;}
113    }
114}

1inary file (no preview

1//  Arduino, HM-10, App Inventor 2
2//
3//  Example Project Part 2:
4  Turn an LED on and off 2 way control 01
5//  By Martyn Currey. www.martyncurrey.com
6//
7//
8  Pins
9//  BT VCC to Arduino 5V out. 
10//  BT GND to GND
11//  Arduino D8
12  (ASS RX) - BT TX no need voltage divider 
13//  Arduino D9 (ASS TX) - BT RX through
14  a voltage divider
15//  Arduino D2 - Resistor + LED
16//  Arduino D3 - 10K pull
17  down resistor + button switch
18
19
20// AltSoftSerial uses D9 for TX and D8
21  for RX. While using AltSoftSerial D10 cannot be used for PWM.
22// Remember to
23  use a voltage divider on the Arduino TX pin / Bluetooth RX pin
24// Download from
25  https://www.pjrc.com/teensy/td_libs_AltSoftSerial.html
26#include <SoftwareSerial.h>
27SoftwareSerial
28  ASSserial(8,9);
29
30// Constants for hardware
31const byte Relay_Pin = 12;
32const
33  byte SwitchPin = 3;
34
35// general variables
36boolean Relay_State = false;
37boolean
38  switch_State = false;
39boolean oldswitch_State = false;
40
41bool first = true;
42
43char
44  c=' ';
45
46
47void setup()  
48{
49    Serial.begin(9600);
50    Serial.print("Sketch:
51   ");   Serial.println(__FILE__);
52    Serial.print("Uploaded: ");   Serial.println(__DATE__);
53
54    Serial.println(" ");
55     
56    ASSserial.begin(9600); 
57    Serial.println("AltSoftSerial
58  started at 9600"); 
59    Serial.println(" ");
60
61    pinMode(Relay_Pin,
62  OUTPUT); 
63    digitalWrite(Relay_Pin,LOW);
64
65    pinMode(SwitchPin, INPUT);
66  
67          
68} // void setup()
69 
70 
71void loop()  
72{
73  checkSwitch();
74
75  checkRecievedData();
76}
77
78
79void checkSwitch()
80{
81     // Simple
82  toggle switch function with even simpler debounce.
83     boolean state1 = digitalRead(SwitchPin);
84
85     delay(1);
86     boolean state2 = digitalRead(SwitchPin);
87     delay(1);
88
89     boolean state3 = digitalRead(SwitchPin); 
90     
91     if ((state1 == state2)
92  && (state1==state3)){ 
93          switch_State = state1;  
94         
95          if
96  ( (switch_State == HIGH) && (oldswitch_State == LOW) ){
97               // toggle
98  Relay_State.
99               Relay_State = ! Relay_State;  
100               //
101  If Relay_State is HIGH then LED needs to be turned on.
102               if ( Relay_State
103  == HIGH) 
104               {  
105                    if(!first){
106                      digitalWrite(Relay_Pin,HIGH);
107   // turn on the Relay
108                      ASSserial.print("1");       //
109  tell the app the Relay is now on
110                      Serial.println("Sent
111  - 1");
112                    }else{
113                      first=false;
114
115                    }
116               }
117                                           
118
119               else                     
120               {  
121                   digitalWrite(Relay_Pin,LOW);
122    // turn off the Relay
123                   ASSserial.print("0");        //
124  tell the app the Relay is now off
125                   Serial.println("Sent -
126  0");    
127               }    
128          }          
129          
130          oldswitch_State
131  = switch_State;
132      }
133}
134
135
136void checkRecievedData()
137{
138     //
139  Read from the Bluetooth module and turn the LED on and off
140    if (ASSserial.available())
141
142    {
143        c = ASSserial.read();
144        Serial.println(c);
145 
146        //
147  The ascii code for 0 is dec 48
148        // The ascii code for 1 is dec 49
149
150        if ( c== '0') { digitalWrite(Relay_Pin, LOW);     Relay_State = LOW;}
151
152        if ( c== '1') { digitalWrite(Relay_Pin, HIGH);    Relay_State = HIGH; first=false;}
153
154    }
155}