bicore head tutorial

B.E.A.M.
BEAM is an acronym standing for :
Biology, Electronics, Aesthetics and Mechanics
Andy's Light-Tracking Head
DIY : LightHead Parts list : updated Feb., 28, 2001

1 bicore chip : 74HCT240

2 IR leds (from my PC mouse :-) )

1 voltage regulator 78L05

It's only 3 items, don't tell me it is too much for you, my dear friend :-)

Math: " Like to share my bots with other people, otherwise I wouldn't present them on my homepage "

My version on How to freeform it (without PCB) : Math's Light head2


1a. make sure you know the orientation of the chip pin 20 is anode +ve, ( Vcc ) pin 10 is cathode -ve, ( ground )	1b. using the brand-new " poor " resistor lead, lay down the track as shown solder the pin 1, 19 and 10 this is all connected together as cathode -ve.

2a. solder pins11 to 18 together. Yes, I confirmed with Math already.	2b. this is one of the motor lead. Make it long for easy handling.

3a. solder pins3, 5, 7 and 9 together.	3b. this is the other motor lead. Make it long for easy handling.

4a. solder pins2, 4, 6 and 8 together.	4b. Oh, look at the shadow :-)

Now, the IR leds, kindly donated from my PC mouse :-)


5a. solder the IR leds in series : +ve lead goes to pin 1	5b. solder the -ve lead of led to pin 20

6a. bend a wire and solder onto pin 4 (either 2, 4, 6 or 8)	6b. and the lead goes between IR leds

7a. the layout of 78L05 : 1,2,3 is output, Gnd, and input	7b. solder output to pin 20 and Gnd to pin 1

This is it. Just hook up the battery and motor, and let it track the light source.
And most of all, have fun :-)

Tutorial on how to make solar-bug (Ben Hitchcock's Fred : light-seeking robot)

Tutorial on how to make Bicore Head

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