void setMotorSpeed(mraa::Pwm &pwm, mraa::Gpio &dir, double speed) {
assert(-1.0 <= speed && speed <= 1.0);
if (speed < 0) {
dir.write(1);
} else {
dir.write(0);
}
pwm.write(fabs(speed));
}
// Turn on the water
void turn_on() {
if (turnedOn) return;
pump->write(1);
turnedOn = true;
turnedOff = false;
message("on");
}
// Turn off the water
void turn_off() {
if (turnedOff) return;
pump->write(0);
turnedOn = false;
turnedOff = true;
message("off");
}
// Initialization function
void init() {
// pump attached to A2 (aka D16)
pump = new mraa::Gpio(16);
pump->dir(mraa::DIR_OUT);
pump->write(0);
// moisture sensor attached to A1
moisture = new upm::GroveMoisture(1);
};
void stop(mraa::Pwm& pwm, mraa::Gpio& dir) {
pwm.write(0);
dir.write(0);
}
// Stops the buzzer making noise
void stop_buzzing() {
buzzer->write(0);
}
// Starts the buzzer making noise
void start_buzzing() {
buzzer->write(1);
}
// Stops the alarm
void stopAlarm() {
buzzer->write(0);
}
// Starts the alarm
void alarm() {
buzzer->write(1);
}
// Sounds the alarm
void alarm() {
buzzer->write(0);
sleep(1);
stop_alarm();
}