DIY Arduino Helicopter Collective Joystick Control -- Episode 440

Very nice I just ordered all that I need, but for elevation I will try another thing...

Why not use the Hall effect sensor for elevation instead of a big gear ?

I think is more precise, and less mechanical...

It's just the route I took, Initial idea was to go with a timing belt for more precision, but... space.

What hall effect sensor did you go with?

-Kaleb

can you share detial about your implementation as I'm in belgium, I'm pretty interrested to knwo how you done it and which all materials and code needed.

Philippe, I am very interested on seen tour code an electrical schematics, mostly for educational purposes, I am learning myself and i got the idea on kaleb code. What I want to see mostly is how you mangaged the correlation of the analog imput from the hall sensor and the magnets mounting. Thanks to kaleb and you for an amazing project. I hope some day I will be up to the task.

I am in holidays now  

See you next week  

Relax and enjoy!

That looks great Philippe! Well done, I love the hall effect update!

Is it performing well for you?

-Kaleb

Work very well :-)

I will send one part of code about hall sensor when I come back from my holidays ;-)

Here the part my code for SS495a

[code]

void Update_SS495a()

{

    SS495a_ReadValue = analogRead(SS495a);

    static int16_t SS495a_ReadValue_Pre = 512;

    static const uint8_t SS495a_Filter = 15;

    static int16_t SS495a_Value_Min = 1023;

    static int16_t SS495a_Value_Max = 0;

    const int16_t Middle        = 503;    // Find without magnet

    const int16_t DeadZone_Up   = 40;     // For mechanic exercice

    const int16_t DeadZone_Down = 40;     // For mechanic exercice

    int32_t SS495a_Value_Up;

    int32_t SS495a_Value_Down;

    static float SS495a_Step_Up = 1;

    static float SS495a_Step_Down = 1;

    static float SS495a_Value_Up_float;

    static float SS495a_Value_Down_float;

    static int16_t SS495a_ToSend;

    static int16_t SS495a_ToSend_Pre = -1;

    // Auto Calibration after Power, Move Up and down to take Max and Min after Power On ( Plug USB )

    if (SS495a_Value_Min > SS495a_ReadValue)

    {

        SS495a_Value_Min = SS495a_ReadValue;

        SS495a_Step_Down = 512.0 / (float)(Middle - (SS495a_Value_Min + DeadZone_Down));

    }

    if (SS495a_Value_Max < SS495a_ReadValue)

    {

        SS495a_Value_Max = SS495a_ReadValue;

        SS495a_Step_Up = 512.0 / (float)((SS495a_Value_Max - DeadZone_Up) - Middle);

    }

    bool IsUp = SS495a_ReadValue > Middle;

    if (IsUp)

    {

        SS495a_Value_Up = SS495a_ReadValue - Middle;

        SS495a_Value_Down = 0;

    }

    else

    {

        SS495a_Value_Down = Middle - SS495a_ReadValue;

        SS495a_Value_Up = 0;

    }

    if ( SS495a_ReadValue  > SS495a_ReadValue_Pre + SS495a_Filter | SS495a_ReadValue  < SS495a_ReadValue_Pre - SS495a_Filter)

    {

        SS495a_Value_Up_float = (float)SS495a_Value_Up;

        SS495a_Value_Down_float = (float)SS495a_Value_Down ;

        SS495a_ToSend = (-(SS495a_Value_Down_float * SS495a_Step_Down) + (SS495a_Value_Up_float * SS495a_Step_Up)) + 512;

        if (SS495a_ToSend > 1023)

            SS495a_ToSend = 1023;

        if (SS495a_ToSend < 0)

            SS495a_ToSend = 0;

        if (SS495a_ToSend_Pre != SS495a_ToSend) // Send Only if different value

        {

            Joystick.setRxAxis(SS495a_ToSend);

            SS495a_ToSend_Pre = SS495a_ToSend;

        }

        SS495a_ReadValue_Pre = SS495a_ReadValue;

    }

}

[/code]

@Webmaster : The Balise [code][/code] don't work Maybe it's a good idea to activate

I will try it to with the hall effect sensor it seem better by design and avoid those pot , can you shar eyour code/ print for the 2 magnet piece and sensor holder (I see you user a lot of glue

The ( hot) glue is only to fix wires and the SS495a...

You can find the code for double magnet below this post.

If you want my STL of magnets support send me your email

That is awsome Philippe, thanks. I am low on cash for now but in a couple of months I will be beginning to buy parts, (for now i am just doing the pricing). If during the construction phase i get stuck I hope is ok to give you a shout out with a question or two jejejeje. Thanks again!

That is awsome Philippe, thanks. I am low on cash for now but in a couple of months I will be beginning to buy parts, (for now i am just doing the pricing). If during the construction phase i get stuck I hope is ok to give you a shout out with a question or two jejejeje. Thanks again!