Hello everyone,
I am trying to make a circuit for a radio controlled boat using 433 MHZ modules. The boat is a simple foam hull with the electronics on top. Basically, the transmiter has 3 buttons: Forward, left and right. The propulsion is a common 3V dc motor, and the steering uses a regular sg90 (the small blue box) servo.
Each time a button is pressed on the transmiter (short: TX) it sends a single character (1, 2 and 3) to the reciever (RX).
As for the motor, I use the l239d driver chip (just the IC) with a 3v external power supply. Depending on the character recieved, it does a different function (forward, left or right).
The code without the servo works fine. However, when I include the servo library, it gives me the "exit status 1" error, with no more info. Full error:
C:\Users\Usuario\AppData\Local\Temp\arduino\sketches\A93E5929FF3DB4F7B36C25D314874E47\libraries\RadioHead\RH_ASK.cpp.o (symbol from plugin): In function RH_ASK::maxMessageLength()': (.text+0x0): multiple definition of __vector_11'
C:\Users\Usuario\AppData\Local\Temp\arduino\sketches\A93E5929FF3DB4F7B36C25D314874E47\libraries\Servo\avr\Servo.cpp.o (symbol from plugin):(.text+0x0): first defined here
collect2.exe: error: ld returned 1 exit status
exit status 1
Compilation error: exit status 1
Here i post the full code, with explanations:
/* Hello everyone, please keep in mind
that I am better at hardware than software,
if you see any issues, or any way to improve
the code I am all ears, thanks.
Basically, when one character is recieved, the if statements tell the driver what to do.
The 500 ms delay is there so that for half a second the motor starts running,
and when the time pases it goes back to zero, unless it recieves a new input.
Then the delay time of the motor stopped is so small that it inmediately starts
the motor again, so that it is more or less "sensitive" to the inputs*/
#define in1 6 //define inputs for the l239d driver
#define in2 5
#include <Servo.h> //servo library
#include <RH_ASK.h> // mighty Radio Head
#include <SPI.h> // SPI library for the radio
RH_ASK rf_driver; // for the ASK library and the radio
Servo rudder; //create the servo object for the servo that moves the rudder
void setup() {
pinMode(in1, OUTPUT); //for the l239d chip
pinMode(in2, OUTPUT);
rudder.attach(2); //servo pin is 2
rudder.write(90); //servo to middle position
rf_driver.init();
}
void loop() {
uint8_t buf[1]; //space for 1 character message
uint8_t buflen = sizeof(buf); // define buffer length
if (rf_driver.recv(buf, &buflen)){ //if mesage recieved
if ((char)buf[0] == '1'){ //if mesage is character "2"
digitalWrite(in1, HIGH); //move the motor forward
digitalWrite(in2, LOW);
delay(500);
digitalWrite(in1, LOW);
delay(1);
}
else if((char)buf[0]== '2'){ //if mesage is character "2"
digitalWrite(in1, HIGH); //move the motor the other way AND move the servo left
digitalWrite(in2, LOW);
rudder.write(130); //move servo left
delay(500); //I don't know if this method is efficient but it is what I know
digitalWrite(in1, LOW); //stop motor
rudder.write(90); //servo to middle
delay(1);
}
else if((char)buf[0]== '3'){ //if the mesage is character "3"
digitalWrite(in1, HIGH); //move the motor forward
digitalWrite(in2, LOW);
rudder.write(50); //move servo right
delay(500);
digitalWrite(in1, LOW); //stop motor
rudder.write(90); //servo to middle
delay(1);
}
}
}
//The endIf anyone knows how to fix it, I would be very, very gratefull.
Arduinomaker1897