Circuits & Schematics Light: led - 10

91. Laser POV Projector
    Circuits Laser Light ATtiny2313
    .. goal of this project was to expand upon the extremely popular LED persistence of vision (POV) devices that have become a staple of introductory electronic kits. By using the same ...
    07-11-2007

92. Red LEDs function as light sensors
    Circuits Light
    .. Nicholls You can build simple LED illuminators using the red LED to sense ambient-light level. Ordinary red LEDs normally function as light emitters, ...
    01-04-2008

93. LM3915 / LM3916 VU Meter
    Circuits Audio Light National Semiconductor LM3914 LM3915 LM3916
    .. The LED VU Meter was the height of late 80-s boombox technology. This instructable will build one out on the breadboard. ...
    01-09-2008
94. Low cost / Automatic Emergency Light
    Circuits Security Light
    .. is a white-LED-based emergency light that offers the following advantages: It is highly bright due to the use of white LEDs. The ...
    01-09-2008
95. 555 Timer Drives Multiple LEDs From One NiMH Cell
    Circuits Supply Light
    .. LEDs. The circuit uses a CMOS timer because it functions on low voltages in this case, as low as 1 V. A single white LED rated at 9300 mcd maintains its brilliance down to this low voltage. The circuit works for 192 hours using a ...
    03-12-2008
96. Synchronizing Fireflies NG. This circuit simulates fireflies with small microcontrollers.
    Circuits Microcontrollers Usage Light
    .. a preprogrammed pattern. It is a self organizing system. The NG version uses a small PCB (Printed Circuit Board) and a RGB-LED. Software Each firefly has a value that stands for the power to flash. This value rises over time. If the power ...
    26-01-2009
97. Automatic Room Lights
    Circuits Domestic Light
    .. room or coming out of the room. Outputs of the two LDR sensors, after processing, are used in conjunction with a bicolour LED in such a fashion that when a person gets into the room it emits green light and when a person goes out of the room ...
    01-07-2009
98. Battery-powered Night Lamp
    Circuits Domestic Light
    .. resistor (any type, optional: see Notes) C1 100nF 63V Polyester Capacitor C2 220µF 25V Electrolytic Capacitor D1 LED Red 10mm. Ultra-bright (see Notes) D2 1N5819 40V 1A Schottky-barrier Diode (see Notes) IC1 7555 or TS555CN CMos ...
    21-07-2009
99. Sequential Brake/Turn Lights
    Circuits Automotive Light
    .. LED-cluster sequencer Can drive up to 16 clusters Circuit diagram: Parts: R1,R5 1K 1/4W Resistors R2 33K 1/4W Resistor ...
    29-07-2009
100. Nite Rider Lights
     Circuits Automotive Light
     .. eye. So looking around at my fellow cyclists rear lights, I came up with the idea of 'NITE-RIDER'. NINE extra bright LED's running from left to right and right to left continuously. It could be constructed with red LEDs for use on the ...
     18-08-2009

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