Cool CAR Garage Detector System

1/*
2 * RYLR998 Check your CAR RECEIVER (In or out of the garage?) 
3 * February 5th 2023 
4 * Carlo Stramaglia
5 * https://www.youtube.com/c/CarloStramaglia
6 * To change the Password, change the 8 digits in the below function LoRa.print("AT+CPIN=11223344\r\n");
7 * You need to have the same password on both Receiver and Transmitter
8 */
9
10#include <NTPClient.h>
11#include <SoftwareSerial.h>
12#include <U8g2lib.h>
13#include <WiFi.h>
14#include <WiFiUdp.h>
15#include "arduino_secrets.h"
16
17WiFiUDP ntpUDP;
18NTPClient timeClient(ntpUDP);
19
20U8G2_SSD1306_128X32_UNIVISION_F_SW_I2C u8g2(U8G2_R0, /* clock=*/ SCL, /* data=*/ SDA, /* reset=*/ U8X8_PIN_NONE);   // Adafruit Feather ESP8266/32u4 Boards + FeatherWing OLED
21SoftwareSerial LoRa(19, 23); // RX, TX
22
23///////please enter your sensitive data in the Secret tab/arduino_secrets.h
24char ssid[] = SECRET_SSID;        // your network SSID (name)
25char pass[] = SECRET_PASS;    // your network password (use for WPA, or use as key for WEP)
26int keyIndex = 0;            // your network key index number (needed only for WEP)
27
28int status = WL_IDLE_STATUS;
29
30String msg = "", received_msg = "";
31int waiting = 200;
32
33
34void setup() {
35  Serial.begin(57600);
36  LoRa.begin(57600);
37
38  WiFi.begin(ssid, pass);
39
40  while (WiFi.status() != WL_CONNECTED) {
41        delay(500);
42        Serial.print(".");
43    }
44
45  Serial.println("");
46  Serial.println("WiFi connected");
47  Serial.println("IP address: ");
48  Serial.println(WiFi.localIP());
49  
50  u8g2.begin();
51  set_AT_commands ("50","18");
52  msg="";
53  u8g2.clearBuffer();          // clear the internal memory
54  u8g2.setFont(u8g2_font_ncenB08_tr); // choose a suitable font
55  u8g2.drawStr(0,8,"Ready to Receive");  // write something to the internal memory
56  u8g2.sendBuffer();          // transfer internal memory to the display 
57
58  timeClient.begin();
59  delay (3000);
60  u8g2.clearBuffer();          // clear the internal memory
61}
62
63void loop() {
64  delay (50);
65  get_serial_data();
66  if(msg != ""){ 
67      Serial.print("Data Arrived: ");
68      Serial.println(msg);
69      int delimiter_1, delimiter_2;
70      delimiter_1 = msg.indexOf("@");
71      delimiter_2 = msg.indexOf("$", delimiter_1 + 1);
72
73      received_msg = msg.substring(delimiter_1 + 1, delimiter_2);
74      int str_len = received_msg.length() + 1;
75      char messageLocal[str_len];
76
77      received_msg.toCharArray(messageLocal, str_len);
78            
79      u8g2.setFont(u8g2_font_ncenB08_tr); // choose a suitable font
80      
81      if (messageLocal[0] == 0x31) {
82        u8g2.clearBuffer();          // clear the internal memory
83        u8g2.drawStr(0,8,"The CAR is IN");  // write something to the internal memory
84        timeClient.update();
85        u8g2.drawStr(0,20,"Last time IN: ");  // write something to the internal memory
86        Serial.println(timeClient.getFormattedTime());
87        Serial.println(timeClient.getDay());
88        display();       
89      }        
90      else
91        u8g2.drawStr(0,8,"The CAR is OUT");  // write something to the internal memory      
92      u8g2.sendBuffer();          // transfer internal memory to the display
93      
94  
95    }
96}
97
98
99void get_serial_data(){
100  if (LoRa.available()){
101    msg = LoRa.readString();
102  }
103}
104
105void set_AT_commands(String address, String network_ID){
106    LoRa.print("AT\r\n");                           // Just a check if the module is well connected
107    delay(waiting);
108    LoRa.print("AT+ADDRESS=" + address + "\r\n");   // Device Address will be stored in Flash
109    delay(waiting);
110    LoRa.print("AT+NETWORKID="+network_ID+"\r\n");  // Network ID will be stored in flash
111    delay(waiting);        
112    LoRa.print("AT+PARAMETER=9,7,1,12\r\n");        // Default data. Can be deleted
113    delay(waiting);   
114    LoRa.print("AT+IPR=57600\r\n");                 // Lower serial speed. My Arduino was not working properly at 115200
115    delay(waiting);
116    LoRa.print("AT+RESET\r\n");                     // Reset is required otherwise seems not to work properly at startup
117    delay(waiting);
118    LoRa.print("AT+BAND=868100000\r\n");            // Eurpean Bandwdth 
119    delay(waiting);
120    LoRa.print("AT+CPIN=11223344\r\n");             // Encrypted password should be the same as the receiver
121    delay(waiting);
122}
123
124// Display Ora a data
125void display()
126{
127  char daysOfTheWeek[7][12] = {"Sunday", "Monday", "Tuesday", "Wednesday", "Thursday", "Friday", "Saturday"};
128  char buf[40];
129  char dayWord[40];
130
131  u8g2.setFont(u8g2_font_ncenB08_tr);
132
133  sprintf(dayWord, daysOfTheWeek[timeClient.getDay()]);
134    
135  Serial.print ("Day: ");
136  Serial.println(dayWord);
137  u8g2.drawStr(80,20, dayWord);  
138   
139  sprintf(buf, "%.2d:%.2d:%.2d GMT", timeClient.getHours(), timeClient.getMinutes(), timeClient.getSeconds());
140  Serial.print ("Time: ");
141  Serial.println(buf);
142  u8g2.drawStr(0,30, buf);   
143    
144  u8g2.sendBuffer();          
145 
146  delay(1000);
147
148}

1#define SECRET_SSID "SSID Name"
2#define SECRET_PASS "Password"

1/*
2 * RYLR998 Check your CAR TRANSMITTER (In or out of the garage?) 
3 * February 5th 2023 
4 * Carlo Stramaglia
5 * https://www.youtube.com/c/CarloStramaglia
6 * To change the Password, change the 8 digits in the below function LoRa.print("AT+CPIN=11223344\r\n");
7 * You need to have the same password on both Receiver and Transmitter
8 */
9
10#include <SoftwareSerial.h>
11#include <HCSR04.h>
12
13SoftwareSerial LoRa(6, 5); // First (6) connected to TX of RYLR998, Second (5) to RX of RYLR998
14
15#define PIN_LED_RED   7
16//#define PIN_LED_RED   13
17#define PIN_LED_GREEN 8
18byte triggerPin = 9;
19byte echoPin = 10;
20
21int ledState = LOW;
22
23String msg = "";
24int waiting = 200;
25int j=0;
26char messageNumber[10] = "";
27
28
29void setup() { 
30  Serial.begin(57600);
31  HCSR04.begin(triggerPin, echoPin);
32  pinMode(PIN_LED_RED, OUTPUT);
33  pinMode(PIN_LED_GREEN, OUTPUT);
34  digitalWrite(PIN_LED_GREEN, ledState);
35  digitalWrite(PIN_LED_RED, ledState);
36  LoRa.begin(57600);
37  set_AT_commands ("51","18");
38  delay(2000);
39  LoRa.print("AT+BAND=868100000\r\n"); // Placed this command because sometimes the board was going back to US standard
40  delay(2000);
41}
42
43void loop() {
44  double* distances = HCSR04.measureDistanceCm();
45  Serial.print("1: ");
46  Serial.print(distances[0]);
47  Serial.println(" cm");
48  
49  Serial.println("---");  
50  if (distances[0] > 100 or distances[0] == -1) {
51    j=0;
52    sprintf (messageNumber, "@%i$",j);
53    send_AT_message("50", messageNumber);
54    digitalWrite(PIN_LED_RED, HIGH);
55    digitalWrite(PIN_LED_GREEN, ledState);
56  }
57  else
58  {
59    j=1;
60    sprintf (messageNumber, "@%i$",j);
61    send_AT_message("50", messageNumber);
62    digitalWrite(PIN_LED_RED, ledState);
63    digitalWrite(PIN_LED_GREEN, HIGH);
64  }
65  delay(3000);
66
67}
68
69
70void get_serial_data(){
71  if (LoRa.available()){
72    msg = LoRa.readString();
73  }
74}
75
76void set_AT_commands(String address, String network_ID){
77    LoRa.print("AT\r\n");                           // Just a check if the module is well connected
78    delay(waiting);   
79    LoRa.print("AT+ADDRESS=" + address + "\r\n");   // Device Address will be stored in Flash
80    delay(waiting);
81    LoRa.print("AT+NETWORKID="+network_ID+"\r\n");  // Network ID will be stored in flash
82    delay(waiting);   
83    LoRa.print("AT+PARAMETER=9,7,1,12\r\n");        // Default data. Can be deleted
84    delay(waiting);
85    LoRa.print("AT+IPR=57600\r\n");                 // Lower serial speed. My Arduino was not working properly at 115200
86    delay(waiting);
87    LoRa.print("AT+RESET\r\n");                     // Reset is required otherwise seems not to work properly at startup
88    delay(waiting);
89    LoRa.print("AT+BAND=868100000\r\n");            // Eurpean Bandwdth
90    delay(waiting);
91    LoRa.print("AT+CPIN=11223344\r\n");             // Encrypted password should be the same as the receiver
92    delay(waiting);
93    
94}
95
96
97void send_AT_message(String address, char* textmessage){
98    int Lenght=0;
99    Lenght = strlen (textmessage);
100    LoRa.print("AT+SEND=" + address + "," + Lenght + "," + textmessage + "\r\n");
101    delay(waiting);
102}

1/*
2 * DO THIS ONLY ONCE ON BOTH RECEIVER AND TRANSMITTER
3 * RYLR998 Setup code for 57600 baud communication 
4 * December 31st 2022 
5 * Carlo Stramaglia
6 * https://www.youtube.com/c/CarloStramaglia
7 *
8 */
9
10#include <SoftwareSerial.h>
11
12SoftwareSerial LoRa(6, 5); // First (6) connected to TX of RYLR998, Second (5) to RX of RYLR998
13
14
15String msg = "";
16int waiting = 200;
17int i=0, j=0;
18char messageNumber[10] = "";
19
20
21void setup() { 
22  LoRa.begin(115200);
23  set_AT_commands ("100","18");
24  delay(5000);
25}
26
27void loop() {  
28  
29}
30
31
32void get_serial_data(){
33  if (LoRa.available()){
34    msg = LoRa.readString();
35  }
36}
37
38void set_AT_commands(String address, String network_ID){
39    LoRa.print("AT\r\n");                           // Just a check if the module is well connected
40    delay(waiting);   
41    LoRa.print("AT+ADDRESS=" + address + "\r\n");   // Device Address will be stored in Flash
42    delay(waiting);
43    LoRa.print("AT+NETWORKID="+network_ID+"\r\n");  // Network ID will be stored in flash
44    delay(waiting);   
45    LoRa.print("AT+PARAMETER=9,7,1,12\r\n");        // Default data. Can be deleted
46    delay(waiting);
47    LoRa.print("AT+IPR=57600\r\n");                 // Lower serial speed. My Arduino was not working properly at 115200
48    delay(waiting);
49    LoRa.print("AT+RESET\r\n");                     // Reset is required otherwise seems not to work properly at startup
50    delay(waiting);
51    LoRa.print("AT+BAND=868100000\r\n");            // Eurpean Bandwdth
52    delay(waiting);
53    
54}