Arduino 8+ Channel RC Controller with Expo & Trim (Range 5km+)

1#include <SPI.h>
2#include <nRF24L01.h>
3#include <RF24.h>
4#include <Servo.h>
5
6RF24 radio(7, 8); // CE, CSN
7const byte address[6] = "77777";
8
9struct package 
10{
11  int x1 = 0; // aileron
12  int y1 = 0; // elevator
13
14  int x2 = 0; // rudder
15  int y2 = 0; // thrust
16
17  char b1 = '0'; // eject
18};
19
20struct package data;
21
22// Servo objects
23Servo motor;
24Servo rudder;
25Servo aileron1;
26Servo aileron2;
27Servo elevator;
28
29// Trim values (adjust as needed)
30int trimElevator = 0;
31int trimRudder = 0;
32int trimAileron1 = 0;
33int trimAileron2 = 0;
34
35void setup() 
36{
37  Serial.begin(9600);
38
39  elevator.attach(3);
40  aileron1.attach(5);
41  aileron2.attach(6);
42  rudder.attach(10);
43  motor.attach(9, 1000, 2000);
44
45  // Initialize control surfaces to trimmed neutral
46  elevator.write(constrain(90 + trimElevator, 0, 180));
47  aileron1.write(constrain(90 + trimAileron1, 0, 180));
48  aileron2.write(constrain(90 + trimAileron2, 0, 180));
49  rudder.write(constrain(90 + trimRudder, 0, 180));
50
51  radio.begin();
52  radio.openReadingPipe(0, address);
53  radio.setPALevel(RF24_PA_MIN);
54  radio.setDataRate(RF24_250KBPS);
55  radio.setAutoAck(false);
56  radio.startListening();
57}
58
59void loop() 
60{
61  if (radio.available()) 
62  {
63    radio.read(&data, sizeof(data));
64
65    // Thrust control
66    data.y2 = constrain(data.y2, 90, 180);
67    motor.write(map(data.y2, 90, 180, 0, 90));
68
69    // Control surfaces with trim applied
70    rudder.write(constrain(data.x2 + trimRudder, 0, 180));
71    aileron1.write(constrain(data.x1 + trimAileron1, 0, 180));
72    aileron2.write(constrain(data.x1 + trimAileron2, 0, 180));
73    elevator.write(constrain(data.y1 + trimElevator, 0, 180));
74
75    // Debug info
76    Serial.print("x1: "); Serial.print(data.x1);
77    Serial.print(" y1: "); Serial.print(data.y1);
78    Serial.print(" x2: "); Serial.print(data.x2);
79    Serial.print(" y2: "); Serial.print(data.y2);
80    Serial.print(" button: "); Serial.println(data.b1);
81  }
82}

1#include <SPI.h>
2#include <nRF24L01.h>
3#include <RF24.h>
4
5RF24 radio(7, 8); // CE, CSN
6
7const byte address[6] = "77777";
8
9#define buttonPin 6
10
11struct package 
12{
13  int x1 = 0; // aileron
14  int y1 = 0; // elevator
15
16  int x2 = 0; // rudder
17  int y2 = 0; // thrust
18
19  char b1 = '0'; // eject
20};
21
22struct package data;
23
24void setup() 
25{
26  Serial.begin(9600);
27
28  radio.begin();
29  radio.openWritingPipe(address);
30  radio.setPALevel(RF24_PA_MIN);
31  radio.setDataRate(RF24_250KBPS);
32  radio.setAutoAck(false);
33  radio.stopListening();
34
35  pinMode(buttonPin, INPUT_PULLUP);
36}
37
38void loop() 
39{
40  data.x1 = map(analogRead(A1), 0, 1023, 0, 180);
41  data.y1 = map(analogRead(A0), 0, 1023, 0, 180);
42  data.x2 = map(analogRead(A3), 0, 1023, 180, 0);
43  data.y2 = map(analogRead(A2), 0, 1023, 180, 0);
44  data.b1 = digitalRead(buttonPin) ? '1' : '0';
45  
46  radio.write(&data, sizeof(data));
47}