Smart Coin Dispenser

1/*
2 * Device for retrieve coins in a given amount.
3 * Works Manually  trough keypad presses (only 1 to 9)
4 * Works remotely with a remote control.
5  * Works with voice commands trough Alexa or other vice assistants. Need also an  Universal Remota Controlfor home automation.
6 * Make the UR learn the remote  control and configura apropriate scenes and routines in Alexa.
7 * 
8 * Feel  free to develop and improve! and please let me know.
9 * 
10 * Arduino Project  Hub
11 * NerdFatherRj - Rio de Janeiro - BRA - Dec.2020.
12 * 
13 */
14
15
16#include  <IRremote.h>
17#include <ir_Lego_PF_BitStreamEncoder.h>
18
19#include <Servo.h>
20#include  <Keypad.h> 
21Servo Srv;
22
23int RECV_PIN = 12;  //digital port for IR Led
24float  armazenavalor1;  
25float armazenavalor2;
26IRrecv irrecv(RECV_PIN);  
27decode_results  results;  
28
29const byte LINHAS = 4; // keypad lines
30const byte COLUNAS =  4; // keypad columns
31
32const char TECLAS_MATRIZ[LINHAS][COLUNAS] = { // keyboard  mapping
33  {'1', '2', '3', 'A'},
34  {'4', '5', '6', 'B'},
35  {'7', '8', '9',  'C'},
36  {'*', '0', '#', 'D'}
37};
38
39const byte PINOS_LINHAS[LINHAS] = {9,  8, 7, 6}; // keypad lines
40const byte PINOS_COLUNAS[COLUNAS] = {5, 4, 3, 2}; //  keypad columns
41Keypad teclado_personalizado = Keypad(makeKeymap(TECLAS_MATRIZ),  PINOS_LINHAS, PINOS_COLUNAS, LINHAS, COLUNAS); // keypad on
42
43int Fora = 50;  //Must calibrate to suit your needs.
44int Dentro = 150; //Must calibrate to suit  your needs.
45
46void setup() {
47Serial.begin(9600); 
48pinMode(12,INPUT);//  ir module
49irrecv.enableIRIn(); // ir initialize
50Srv.attach(11); 
51delay(250);  
52Srv.write(Fora); //lever out waiting for pushing the coins.
53}
54
55void  loop() {
56
57char leitura_teclas = teclado_personalizado.getKey(); 
58  switch  (leitura_teclas){
59
60  case '1': //keypad 1 pressed and so on
61  pushPull1();
62break;
63
64  case '2':
65 pushPull2();
66   break;
67
68  case '3':
69 pushPull3();
70  break;
71
72  case '4':
73  pushPull4();
74break;
75
76  case '5':
77  pushPull5();
78  break;
79
80  case '6':
81 pushPull6();
82 
83 break;
84 
85  case '7':
86  pushPull7;
87 
88break;
89  case '8':
90 pushPull8();
91 break;
92 
93  case '9':
94 pushPull9();
95break;
96    
97} //end switch
98
99/* Routines  for IR control */
100
101if (irrecv.decode(&results))  {  
102    Serial.print("Valor  lido : ");  
103    Serial.println(results.value, HEX); 
104   armazenavalor1 =  (results.value); 
105  irrecv.resume();  
106  armazenavalor2 = (results.value);  
107delay(500);
108
109
110 if (armazenavalor1 == 0xFF30CF ){ //button "1" pressed  
111 pushPull1();
112}
113irrecv.resume(); 
114
115if (armazenavalor1 == 0xFF18E7  ){ //button "2" pressed  
116pushPull2();
117}
118irrecv.resume(); //Le o prximo  valor 
119 
120if (armazenavalor1 == 0xFF7A85  ){ //button "3" pressed  
121pushPull3();
122}
123
124irrecv.resume();  //Le o prximo valor 
125
126if (armazenavalor1 == 0xFF10EF  ){ //button "4" pressed  
127pushPull4();
128}
129
130irrecv.resume(); //Le o prximo valor 
131  
132if  (armazenavalor1 == 0xFF38C7  ){ //button "5" pressed  
133pushPull5();
134}
135
136irrecv.resume();  //Le o prximo valor 
137 
138if (armazenavalor1 == 0xFF5AA5  ){ //button "6" pressed  
139pushPull6();
140}
141irrecv.resume(); //Le o prximo valor 
142  
143if (armazenavalor1  == 0xFF42BD  ){ //button "7" pressed  
144pushPull7();
145}
146irrecv.resume();  //Le o prximo valor 
147 
148if (armazenavalor1 == 0xFF4AB5 ){ //button "8" pressed  
149pushPull8();
150}
151
152irrecv.resume(); //Le o prximo valor 
153  
154if  (armazenavalor1 == 0xFF52AD ){ //button "9" pressed  
155pushPull9();
156}
157
158irrecv.resume();  //Le o prximo valor 
159
160 }//end if decodresults
161} //end loop
162
163
164  void pushPull(){
165Srv.write(Dentro);
166 delay(300);
167  Srv.write(Fora);
168  delay(300);
169  }
170
171  void pushPull1() {
172pushPull();
173}
174
175 void  pushPull2() {
176pushPull();
177pushPull();
178}
179
180 void pushPull3() {
181pushPull();
182pushPull();
183pushPull();
184}
185
186  void pushPull4() {
187pushPull();
188pushPull();
189pushPull();
190pushPull();
191}
192
193  void pushPull5() {
194pushPull();
195pushPull();
196pushPull();
197pushPull();
198pushPull();
199}
200
201  void pushPull6() {
202pushPull();
203pushPull();
204pushPull();
205pushPull();
206pushPull();
207pushPull();
208}
209
210  void pushPull7() {
211pushPull();
212pushPull();
213pushPull();
214pushPull();
215pushPull();
216pushPull();
217pushPull();
218}
219
220  void pushPull8() {
221pushPull();
222pushPull();
223pushPull();
224pushPull();
225pushPull();
226pushPull();
227pushPull();
228pushPull();
229}
230
231  void pushPull9() {
232pushPull();
233pushPull();
234pushPull();
235pushPull();
236pushPull();
237pushPull();
238pushPull();
239pushPull();
240pushPull();
241  }
242