Arduino Control of Electronic Speed Control (ESC)

Development Boards Arduino
2

As a follow up to my questions. I think I have solved most of my issues. The attached code controls the ESC/motor setup using the servo library.

// This sketch uses the servo library to arm the Hacker X-5 Pro ESC.

#include <Servo.h> 
 
Servo esc; // Define the ESC as a servo object
 
int arm = 1000;    // defines pulse width of 1000 us
int speedvalue;
int steady = 300;
int initiate = 0;
 
void setup() 
{
  esc.attach(9);  
  esc.writeMicroseconds(arm); // This command sends a pulse train
                              // from pin 9 that continues until 
                             // the pin is called to do something else. 
 
 /*  Once armed the setup could also be used to specify the 
     run speed of the motor. The commented out lines provide 
     a 2 second delay between changes in speed.
  delay(2000);
  esc.writeMicroseconds(1200);
  delay(2000);
  esc.writeMicroseconds(1300);
  delay(2000);
  esc.writeMicroseconds(1400);
  delay(2000);
 */
} 

void loop() 
{
  
/*
  Calls a sub to throttle up motor from 0 rpm to a steady running value.
  The if statement is used to run the throttle up once.
*/ 
  if (initiate < 1){
    throttleUp();
    initiate = 1;
  }
 
 /*
    You can then change the speed in the main loop by changing the pulse width.
    If nothing else is going on in the loop, a delay must be included otherwise
    the servo writeMicroseconds is called to fast and there is not the proper
    time delay between pulses (I think this is the case...need to check this 
    on a scope. The minimum delay is 15 ms. The lines below use a 1 second delay
    between speed settings. The loop also causes this to be run once
*/ 

  if (initiate < 2){
    for (int count = 0; count < 5; count++){
      speedvalue = speedvalue+50;
      esc.writeMicroseconds(speedvalue);
      delay(1000);
    }
    for (int count = 0; count < 12; count++){
      speedvalue = speedvalue-50;
      esc.writeMicroseconds(speedvalue);
      delay(1000);
    }
    initiate = 2;
  }
  
  esc.detach();  // Disengage ESC from pin

}  
  
  
//**************************************************

void throttleUp(){
  speedvalue = arm;
  for (int count = 0; count < steady; count++){
    esc.writeMicroseconds(speedvalue);
    speedvalue = speedvalue + 1;
    delay(15);
  }}