Arduino Noobe Needs help.

#include <Servo.h>

Servo ESC;

int Button;

int Speed = 1500;

void setup()
{
ESC.attach(9);

pinMode(13, OUTPUT);

pinMode(A5, INPUT);
digitalWrite(A5, HIGH);
}

void loop()
{
delay(25);

Button = digitalRead(A5);

if(Button == LOW)
{
digitalWrite(13, HIGH);
Speed = 2000;
}

else if(Button == HIGH)
{
digitalWrite(13, LOW);
Speed = 1500;
}

ESC.writeMicroseconds(Speed);
}

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TECH_GEEK10 said:

I just saw the price of that motor and the esc. Have you already purchased them? You can get a better, ebike specific, motor and controller for less.

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TECH_GEEK10 said:

This is you taking this video I assume?

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TECH_GEEK10 said:

I have a bunch of concerns that I am seeing in that video, and would like to go over a bunch of stuff that a forum really is not suited for. Do you have a skype account? I don't need to use the camera feature of skype just the instant messaging part.

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TECH_GEEK10 said:

stephen.germiller

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gwhy! said:

complete solution using a arduino


throttle control
http://endless-sphere.com/forums/viewtopic.php?f=2&t=61004

watt meter
http://endless-sphere.com/forums/viewtopic.php?f=2&t=61407

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gwhy! said:

The second lot of code in the first link is what you need.. you un rem all the rc esc parts and rem all the ebike contoller parts. The code does a lot more that just the speed contol if you want to wire the current sensor but its not needed for basic speed control.

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Boyntonstu said:

gwhy! said:

The second lot of code in the first link is what you need.. you un rem all the rc esc parts and rem all the ebike contoller parts. The code does a lot more that just the speed contol if you want to wire the current sensor but its not needed for basic speed control.

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A minimalist code for speed control and a wiring diagram to the Arduino would be greatly appreciated.

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// set servo for 1.1ms min - 1.8ms max ( or auto range )
/********************************************************
 * A7 (throttle input)
 * D3 (control) (throttle output) , RC filter is required on output for e-bike controller,, no rc filter for rc esc 
 *******************************************************/

// #include <Servo.h>   

const int Throttle_Input_pin = 7;  // Throttle input A7
const int Throttle_Output_pin = 3;  //Throttle output D3.. 

const int Set_Min_Servo = 1000;  // esc start with this as min throttle  // (rc esc)
const int Set_Max_Servo = 1800;  // esc end with this as max throttle  // (rc esc)
int Servo_time = 1000;   // (rc esc)                                                 


int Throttle_Value=0;
int Throttle_Pulse=0;
int Set_Throt_Min = 55; // this needs to be the min value to remove dead band from throttle output , around 55
int Set_Throt_Max = 180; // this needs to be the max value to achive full throttle without cutting out , around 180
int Cal_Throt_Min = 176; // this needs to be set to the real value of the throttle when fully closed;
int Cal_Throt_Max = 842; // this needs to be set to the real value of the throttle when fully open;

void setup()
{ //--- initialize serial communication at 9600 bits per second:
Serial.begin(9600); 
analogWrite(Throttle_Output_pin,0);  // (e-bike)
Servo_Pulse.attach(6);      // Attach Servo_Pulse to pin 3  //  (rc esc)
Servo_Pulse.writeMicroseconds(Servo_time);  //  (rc esc)
delay(1000);

}

void loop()
{

Throttle_Value = analogRead(Throttle_Input_pin);
Throttle_Pulse = constrain(map(Throttle_Value,Cal_Throt_Min,Cal_Throt_Max,0,1023),0,1023); // set range on throttle 
Servo_time = map(Throttle_Pulse,0,1023,Set_Min_Servo,Set_Max_Servo); // scale output  
Servo_Pulse.writeMicroseconds(Servo_time); //output servo signal to controller     

}