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    • Supplying Power to a Rotating Object, Wirelessly!
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      11 comments
  • Supplying Power to a Rotating Object, Wirelessly!

    Fixed - thanks for the heads-up!dave

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  • davebodnar commented on davebodnar's instructable Thunder & Lightning Animation2 months ago
    Thunder & Lightning Animation

    Thanks for the comment! Please note that I did not build this layout - that was done by a professional organization and took many moons to complete!dave

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  • Supplying Power to a Rotating Object, Wirelessly!

    Right you are, Russ - I believe some of the commercial phone charging bases have ferrite under the transmitting coil.My goal was to use as simple a setup as possible and I have not needed to increase the power output beyond what I can realize with the project as described.thanks!dave

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  • davebodnar's instructable Thunder & Lightning Animation's weekly stats: 2 months ago
    • Thunder & Lightning Animation
      3,055 views
      63 favorites
      5 comments
  • davebodnar commented on davebodnar's instructable Thunder & Lightning Animation2 months ago
    Thunder & Lightning Animation

    The speaker output varies depending on the volume of the of the MP3 player output - that is how the Arduino knows when it is time to turn on or turn off the LED light.dave

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  • davebodnar's instructable An Inexpensive Smoke / Fog Generator's weekly stats: 3 months ago
    • An Inexpensive Smoke / Fog Generator
      21,772 views
      137 favorites
      21 comments
  • davebodnar commented on davebodnar's instructable An Inexpensive Smoke / Fog Generator3 months ago
    An Inexpensive Smoke / Fog Generator

    I don't know if it would work or not - the heating element and wick are designed to work with the glycerine so it would be unlikely that a completely different fluid would work. If you give it a try be sure to let us know what you find!dave

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  • davebodnar commented on davebodnar's instructable An Inexpensive Smoke / Fog Generator4 months ago
    An Inexpensive Smoke / Fog Generator

    Lamar - I really can't say if the smoke would harm a smoke detector - I have never seen such an issue discussed.dave

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  • davebodnar commented on davebodnar's instructable An Inexpensive Smoke / Fog Generator4 months ago
    An Inexpensive Smoke / Fog Generator

    It is a Vollmer HO Scale 1:87 SMOKE STACK KIT dave

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  • davebodnar commented on davebodnar's instructable An Inexpensive Smoke / Fog Generator4 months ago
    An Inexpensive Smoke / Fog Generator

    You could certainly use metal - I have also made a unit using PVC pipe - These photos show my latest version using 3/4" fittings and a small acrylic disk between the top and bottom section.Keep in mind that the chance of fire is really remote due to the low power that is used. Only a few watts.dave

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  • davebodnar commented on davebodnar's instructable An Inexpensive Smoke / Fog Generator4 months ago
    An Inexpensive Smoke / Fog Generator

    Rob - I am not sure that this type of gizmo would produce the smoke you are looking for as it seems to dissipate quickly - The units I am using only want 3.7 volts or so. You surely would need a step down converter to deal with your voltages!dave

    I have a timer that turns the unit on for about 30 seconds then off for a few minutes - it is activated by a simple keyfob remote but could be started with a simple button.I have notes on how it was done and the timer I used on my web page here:http://trainelectronics.com/Animation_Smoke/Please let me know if you have any questions.dave

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  • davebodnar commented on davebodnar's instructable An Inexpensive Smoke / Fog Generator4 months ago
    An Inexpensive Smoke / Fog Generator

    That is good to hear - it has been great fun to build and use - folks really like the effect on the model railroad layoutdave

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  • davebodnar commented on deba168's instructable ESP8266 Weather Widget1 year ago
    ESP8266 Weather Widget

    Does anyone have a fix for these error messages? I believe I have the right program and the right compiler & librariesthanks!daveArduino: 1.6.7 (Windows 10), Board: "Generic ESP8266 Module, Serial, 80 MHz, 40MHz, DIO, 115200, 512K (64K SPIFFS), ck"WeatherStationDemo:84: error: 'drawFrame1' was not declared in this scope bool (*frames[])(SSD1306 *display, SSD1306UiState* state, int x, int y) = { drawFrame1, drawFrame2, drawFrame3, drawFrame4, drawFrame5 }; ^WeatherStationDemo:84: error: 'drawFrame2' was not declared in this scope bool (*frames[])(SSD1306 *display, SSD1306UiState* state, int x, int y) = { drawFrame1, drawFrame2, drawFrame3, drawFrame4, drawFrame5 }; ^WeatherStationDemo:84: error: 'drawFrame3' was not declared in this scope bool (*frames[])(SSD1306 *displa...see more »Does anyone have a fix for these error messages? I believe I have the right program and the right compiler & librariesthanks!daveArduino: 1.6.7 (Windows 10), Board: "Generic ESP8266 Module, Serial, 80 MHz, 40MHz, DIO, 115200, 512K (64K SPIFFS), ck"WeatherStationDemo:84: error: 'drawFrame1' was not declared in this scope bool (*frames[])(SSD1306 *display, SSD1306UiState* state, int x, int y) = { drawFrame1, drawFrame2, drawFrame3, drawFrame4, drawFrame5 }; ^WeatherStationDemo:84: error: 'drawFrame2' was not declared in this scope bool (*frames[])(SSD1306 *display, SSD1306UiState* state, int x, int y) = { drawFrame1, drawFrame2, drawFrame3, drawFrame4, drawFrame5 }; ^WeatherStationDemo:84: error: 'drawFrame3' was not declared in this scope bool (*frames[])(SSD1306 *display, SSD1306UiState* state, int x, int y) = { drawFrame1, drawFrame2, drawFrame3, drawFrame4, drawFrame5 }; ^WeatherStationDemo:84: error: 'drawFrame4' was not declared in this scope bool (*frames[])(SSD1306 *display, SSD1306UiState* state, int x, int y) = { drawFrame1, drawFrame2, drawFrame3, drawFrame4, drawFrame5 }; ^WeatherStationDemo:84: error: 'drawFrame5' was not declared in this scope bool (*frames[])(SSD1306 *display, SSD1306UiState* state, int x, int y) = { drawFrame1, drawFrame2, drawFrame3, drawFrame4, drawFrame5 }; ^C:\Users\Dave\AppData\Local\Temp\arduino_4924bad1e3d1ecf3c4fc43cc0c1bfec8\WeatherStationDemo.ino: In function 'void setup()':WeatherStationDemo:149: error: 'updateData' was not declared in this scope updateData(&display); ^WeatherStationDemo:151: error: 'setReadyForWeatherUpdate' was not declared in this scope ticker.attach(UPDATE_INTERVAL_SECS, setReadyForWeatherUpdate); ^C:\Users\Dave\AppData\Local\Temp\arduino_4924bad1e3d1ecf3c4fc43cc0c1bfec8\WeatherStationDemo.ino: In function 'void loop()':WeatherStationDemo:158: error: 'updateData' was not declared in this scope updateData(&display); ^C:\Users\Dave\AppData\Local\Temp\arduino_4924bad1e3d1ecf3c4fc43cc0c1bfec8\WeatherStationDemo.ino: In function 'void updateData(SSD1306*)':WeatherStationDemo:173: error: 'drawProgress' was not declared in this scope drawProgress(display, 10, "Updating time..."); ^C:\Users\Dave\AppData\Local\Temp\arduino_4924bad1e3d1ecf3c4fc43cc0c1bfec8\WeatherStationDemo.ino: In function 'bool drawFrame4(SSD1306*, SSD1306UiState*, int, int)':WeatherStationDemo:240: error: 'drawForecast' was not declared in this scope drawForecast(display, x, y, 0); ^exit status 1'drawFrame1' was not declared in this scope This report would have more information with "Show verbose output during compilation" enabled in File > Preferences.

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