Android controlled bluetooth radio

1#include <BluetoothSerial.h>
2#include <Arduino.h>
3#include <Wire.h>
4#include   <RDA5807M.h>
5
6
7#define FIX_BAND RADIO_BAND_FM   
8#define BT_DISCOVER_TIME   10000
9
10BluetoothSerial SerialBT;
11RDA5807M radio;
12
13int stations[12]   = {9110,9370,9580,9670,9740,9890,9890,10110,10280,10480,10540,10760};
14int action   = -1;
15static bool btScanAsync = true;
16static bool btScanSync = true;
17int   Volume = 8;
18//int convert1 = 0;
19float convert = 0;
20void setup() {
21//String   myString = "";  
22  Serial.begin(115200);
23  SerialBT.begin("ESP32FMRadio");   //Bluetooth device name
24  Serial.println("The device started, now you can pair   it with bluetooth!");
25
26
27  if (btScanAsync) {
28    Serial.print("Starting   discoverAsync...");
29    if (SerialBT.discoverAsync(btAdvertisedDeviceFound))   {
30      Serial.println("Findings will be reported in \\"btAdvertisedDeviceFound\\"");
31       delay(10000);
32      Serial.print("Stopping discoverAsync... ");
33      SerialBT.discoverAsyncStop();
34       Serial.println("stopped");
35    } else {
36      Serial.println("Error   on discoverAsync f.e. not workin after a \\"connect\\"");
37    }
38  }
39   
40  if (btScanSync) {
41    Serial.println("Starting discover...");
42    BTScanResults   *pResults = SerialBT.discover(BT_DISCOVER_TIME);
43    if (pResults)
44      pResults->dump(&Serial);
45     else
46      Serial.println("Error on BT Scan, no result!");
47  }
48
49
50   radio.init();
51  radio.setBandFrequency(FIX_BAND, 9110);
52  radio.setVolume(Volume);
53   radio.setMono(false);
54  radio.setMute(false);
55}
56
57void loop() {
58   action = SerialBT.read();
59  if (action > 0) {
60    if (action < 11) {
61       convert = stations[action];
62      convert = convert / 100;
63
64      String   myString = String (convert,1);
65      if (myString.length() == 4) {
66        myString   = (myString + " ");
67      }
68  
69      Serial.println(myString );
70      SerialBT.print(myString);
71       radio.setBandFrequency(FIX_BAND, stations[action]);
72 }
73else {
74  switch   (action){
75  case 11:
76    if (Volume >0) {
77    Volume --;
78  radio.setVolume(Volume);
79   }
80  break;
81
82  case 12:
83    if (Volume < 15) {
84    Volume ++;
85     radio.setVolume(Volume);
86      }
87   break;
88   
89  case 13:
90  radio.seekDown();
91   break;
92
93  case 14:
94  radio.seekUp();
95  break;
96
97  case 15:
98   convert = radio.getFrequency();
99  convert = convert / 100;
100  String myString   = String (convert,1);
101      if (myString.length() == 4) {
102        myString   = (myString + " ");
103      }
104  Serial.println(myString);
105  SerialBT.print(myString);
106   break;
107  }
108}
109
110  }
111}
112
113
114void btAdvertisedDeviceFound(BTAdvertisedDevice*   pDevice) {
115  Serial.printf("Found a device asynchronously: %s\
116", pDevice->toString().c_str());
117}
118

1#include <BluetoothSerial.h>
2#include <Arduino.h>
3#include <Wire.h>
4#include  <RDA5807M.h>
5
6
7#define FIX_BAND RADIO_BAND_FM   
8#define BT_DISCOVER_TIME  10000
9
10BluetoothSerial SerialBT;
11RDA5807M radio;
12
13int stations[12]  = {9110,9370,9580,9670,9740,9890,9890,10110,10280,10480,10540,10760};
14int action  = -1;
15static bool btScanAsync = true;
16static bool btScanSync = true;
17int  Volume = 8;
18//int convert1 = 0;
19float convert = 0;
20void setup() {
21//String  myString = "";  
22  Serial.begin(115200);
23  SerialBT.begin("ESP32FMRadio");  //Bluetooth device name
24  Serial.println("The device started, now you can pair  it with bluetooth!");
25
26
27  if (btScanAsync) {
28    Serial.print("Starting  discoverAsync...");
29    if (SerialBT.discoverAsync(btAdvertisedDeviceFound))  {
30      Serial.println("Findings will be reported in \\"btAdvertisedDeviceFound\\"");
31      delay(10000);
32      Serial.print("Stopping discoverAsync... ");
33      SerialBT.discoverAsyncStop();
34      Serial.println("stopped");
35    } else {
36      Serial.println("Error  on discoverAsync f.e. not workin after a \\"connect\\"");
37    }
38  }
39  
40  if (btScanSync) {
41    Serial.println("Starting discover...");
42    BTScanResults  *pResults = SerialBT.discover(BT_DISCOVER_TIME);
43    if (pResults)
44      pResults->dump(&Serial);
45    else
46      Serial.println("Error on BT Scan, no result!");
47  }
48
49
50  radio.init();
51  radio.setBandFrequency(FIX_BAND, 9110);
52  radio.setVolume(Volume);
53  radio.setMono(false);
54  radio.setMute(false);
55}
56
57void loop() {
58  action = SerialBT.read();
59  if (action > 0) {
60    if (action < 11) {
61      convert = stations[action];
62      convert = convert / 100;
63
64      String  myString = String (convert,1);
65      if (myString.length() == 4) {
66        myString  = (myString + " ");
67      }
68  
69      Serial.println(myString );
70      SerialBT.print(myString);
71      radio.setBandFrequency(FIX_BAND, stations[action]);
72 }
73else {
74  switch  (action){
75  case 11:
76    if (Volume >0) {
77    Volume --;
78  radio.setVolume(Volume);
79  }
80  break;
81
82  case 12:
83    if (Volume < 15) {
84    Volume ++;
85    radio.setVolume(Volume);
86      }
87   break;
88   
89  case 13:
90  radio.seekDown();
91  break;
92
93  case 14:
94  radio.seekUp();
95  break;
96
97  case 15:
98  convert = radio.getFrequency();
99  convert = convert / 100;
100  String myString  = String (convert,1);
101      if (myString.length() == 4) {
102        myString  = (myString + " ");
103      }
104  Serial.println(myString);
105  SerialBT.print(myString);
106  break;
107  }
108}
109
110  }
111}
112
113
114void btAdvertisedDeviceFound(BTAdvertisedDevice*  pDevice) {
115  Serial.printf("Found a device asynchronously: %s\
116", pDevice->toString().c_str());
117}
118