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Thread: Lets build Computer Controlled Graphical Fountains

  1. #25
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    Hi,
    Here is 5 step GUI for graphical fountain Programmer and Controller. Any suggestion is appreciated to make it rich with functionalities..

    Attached Thumbnails Attached Thumbnails Lets build Computer Controlled Graphical Fountains-graphical-fountain-software-gui-jpg  
    http://free3dscans.blogspot.com/ http://my-woodcarving.blogspot.com/
    http://my-diysolarwind.blogspot.com/


  2. #26
    Member Khalid's Avatar
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    After testing 16 valves PCB , today i etched a PCB for 40 solenoid valve controller.. I also purchased a 6" dia PVC pipe and drilled 40 holes each 6mm diameter...

    Attached Thumbnails Attached Thumbnails Lets build Computer Controlled Graphical Fountains-40-solenoid-valve-pcb-jpg   Lets build Computer Controlled Graphical Fountains-pcb-40-solenoid-valves-jpg  
    http://free3dscans.blogspot.com/ http://my-woodcarving.blogspot.com/
    http://my-diysolarwind.blogspot.com/


  3. #27
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    Some advancements and updates on the software and hardware:

    SOFTWARE Updates:
    1- The software now can support all types of popular image format. Previously it only support WMF file Format.

    2- Now you can add Colored images and then convert it in Pure Black and white.
    3- Multuple image effects added, like Flip, Mirror and invert.
    4- Delay Timer provided.
    5- Scroll Bars were added to move big pictures inside picture container.

    HARDWARE:
    1- The PCB for controlling 40 solenoid valves was designed and etched.
    2- The simulator was tested and a short video is in following youtube link:
    [nomedia="http://www.youtube.com/watch?v=3gCgXjO2Noo"]YouTube - Graphical Fountain 40 Solenoid Valve simulator.flv[/nomedia]

    3- Ordered more 30 solenoid valves. The pipe fittings are being machined on lathe. Hope i will be able to post some pictures in coming days.

    Attached Thumbnails Attached Thumbnails Lets build Computer Controlled Graphical Fountains-graphical-fountain-jpg   Lets build Computer Controlled Graphical Fountains-pcb-backside-jpg   Lets build Computer Controlled Graphical Fountains-simulator-40-solenoid-valve-jpg  
    http://free3dscans.blogspot.com/ http://my-woodcarving.blogspot.com/
    http://my-diysolarwind.blogspot.com/


  4. #28
    Member Khalid's Avatar
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    Here is the 6" Diameter PVC pipe with 40 fittings for solenoid valves

    Attached Thumbnails Attached Thumbnails Lets build Computer Controlled Graphical Fountains-pipe1-jpg  
    http://free3dscans.blogspot.com/ http://my-woodcarving.blogspot.com/
    http://my-diysolarwind.blogspot.com/


  5. #29
    Member Khalid's Avatar
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    UPDATES ON SOFTWARE:
    I updated my Graphical programmer software:
    1- A Loop checkbox and STOP button is added. If the 'Loop Checkbox' is ticked, the graphical hexadecimal data will be send to the microcontroller in a loop. So we will able to continuously run the graphical fountain and repeat the designs.
    2- Pressing the Stop button will do following:
    It will check how many bytes are in shift registers. Then the software will send numbers of '0X00' to finalize the shiftout function. After shifting out the software will turnoff all the valves by sending 5-bytes '0X00' to the controller.
    UPDATES ON Hardware:
    Here are the 40 solenoid valves attached to the rig ...

    Attached Thumbnails Attached Thumbnails Lets build Computer Controlled Graphical Fountains-solen-jpg   Lets build Computer Controlled Graphical Fountains-solenoid-close-jpg   Lets build Computer Controlled Graphical Fountains-solenoid-installed-jpg   Lets build Computer Controlled Graphical Fountains-graphical-waterfall-software-jpg  

    http://free3dscans.blogspot.com/ http://my-woodcarving.blogspot.com/
    http://my-diysolarwind.blogspot.com/


  6. #30
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    Have you checked that the solenoid valves are responsive enough to turn on and off every few milliseconds?



  7. #31
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    Hello Pavlo,
    Hmm... Not checked so far... but just touching the 24V to the solenoid gives a frequent response... I will check the response later tomorrow

    http://free3dscans.blogspot.com/ http://my-woodcarving.blogspot.com/
    http://my-diysolarwind.blogspot.com/


  8. #32
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    Here is the completed controller with all the wiring and IRF540.

    Attached Thumbnails Attached Thumbnails Lets build Computer Controlled Graphical Fountains-controller1-jpg   Lets build Computer Controlled Graphical Fountains-controller2-jpg  
    http://free3dscans.blogspot.com/ http://my-woodcarving.blogspot.com/
    http://my-diysolarwind.blogspot.com/


  9. #33
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    Here is another video in sequence with the graphical waterfall LED simulator toward the actual controlling of single solenoid valve... You can hear the ON/OFF sound from the solenoid valve.
    In the last few frames the solenoid stopped working and i just stumped what happen?..and after a little investigation found the +ve wire of solenoid detached..as i connected it temporirly with squash tape..smiley-wink

    The positive thing of this test was:
    1- My Connections of IRF540 good.
    2- Solenoid response time is also good.
    3- During the testing my circuit didn't get back emf from the solenoid as i have connected IN4007 across the solenoid. Thus my circuit is safe.
    4- Testing one solenoid valve successfully gave me confidence that all the remaining 39 valves will work great.
    5- I thought the LED of the tested solenoid valve will not be bright or will be off but it also work as usual.
    6- The 74HC595 and microcontroller IC are as cold as in ice room.

    Here is the link of video:
    [nomedia="http://www.youtube.com/watch?v=fCnFGR4CeFw"]YouTube - graphical fountain and solenoid.flv[/nomedia]

    http://free3dscans.blogspot.com/ http://my-woodcarving.blogspot.com/
    http://my-diysolarwind.blogspot.com/


  10. #34
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    Awesome project! Keep up the good work



  11. #35
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    Quote Originally Posted by The Blight View Post
    Awesome project! Keep up the good work
    Thank you ,
    Hope i will be able to provide a low-cost alternative of expensive graphical waterfall.

    http://free3dscans.blogspot.com/ http://my-woodcarving.blogspot.com/
    http://my-diysolarwind.blogspot.com/


  12. #36
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    Quote Originally Posted by pavlo View Post
    Have you checked that the solenoid valves are responsive enough to turn on and off every few milliseconds?
    You can make the solenoids switch faster and cleaner by driving the coil with a higher voltage and regulated current (much like a stepper motor).

    You can also drive them with a fast over-current pulse, of a short duration, followed by a normal "holding" current. This is quite easy as you can use a capacitor to supply the fast over-current pulse.



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