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Here is a mini lighthouse that comes from France (Brittany) which was illuminated by a candle,

I removed the candle and inserted two electronic circuits a NE555 for the brightness of the LED and a 74HC04 for the LDR and the Battery.

the battery is 4.8V NiMh in four AAA battery holder.

Step 1: Screenshots of the Two Modules Used for the Headlight

Here are the screenshots of the two modules used for the headlight.

The schemas, PCB and SVG-PCB are in the attached ZIP archive

Step 2: Construction

Connect the 4.8V battery to the LDR module input.

The LDR must be glued to the outside of the Headlight to operate properly. Connect the room LED and the NE555 module input to the LDR module output. Connect the flash LED to the output of the NE555 module WARNING carefully respect the polarities of the modules and LEDs.

Step 3: Material and Files

1 epoxy PCB presenzitised 100 x 75 mm, soldering iron, solder, drill 0.8mm, acétone

LDR PCB:

1 x 74HC04

1 x Potentiometer 200K

4 x Pin Header

1 x tantalum condensator 10µF

1 x 100nF condensator

1 x LDR

FLASHING LED:

1 x NE555

1 x DIL 8 support

1 x Pin Header

1 x tantalum condensator 10µF

1 x 10nF condensator

1 x 330K resistor

1x 10K resistor

1 x 33 Ohms resistor

1 x white LED

FILES:

flashing LED for Kicad 07/2013 version

transparent for insolation SVG open with internet explorer or InkScape

Kicad old version 2013 link: search or Kicad 2013 old version

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