I am writing a node.js app for to help automate some of my home brewery. One of the modules I am using is a PID algorithm to control outputs so that they maintain certain setpoints. I am currently doing this via a while loop, but am thinking that this code will be blocking. Any help making this more effecient and asynchronous would be greatly appreciated. Here is my control loop:
device.prototype.pid_on = function(){
while(this.isOn){
this.pid.set_target(this.target); // make sure that the setpoint is current
var output_power = this.pid.update(this.current_value); // gets the new output from the PID
this.output.set_power(output_power);
};
};
I have changed it a little for readability, but that is basically it. It will just loop, adjust the output, then feedback the new input value. I want the loop to continue to run until the device is turned off.
Obviously, I need this to be non-blocking so that I can continue to control other devices while the pid is running.
Currently, i just call the equivalent of device.pid_on(); in my code.
One idea I had is to use an empty callback, would that make this non blocking?
device.prototype.pid_on(calback){
while (this.isOn){...};
callback();
};
//call later in code
device.pid_on(function(){});
Thanks for any/all help!
