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Techyman said:Hi
I need a 3 input LDR circuit with 3 LEDs as outputs for my GCSE project.
Techyman said:the idea was to have a childs toy abit like a jigsaw -when you added the shapes,which would cover an ldr an led would then light up -image of type of toy can be seen here-http://www.elc.co.uk/category-536 -the blossom farm puzzle-thanks for helping-
Techyman said:This is for a GCSE Technology and Design course in Northern Ireland exam board being CEA - I have covered night light circuits using ldrs and variable resistors with a tip 121 transistor
Have you checked the link I provided in my previous post?Techyman said:where would i find a circuit digram/component values for this so i can draw it using crocodile technology and then convert it using the pcb wizard software?
1 LM339
1 potentiometer
3 LDRs
6 resistors
3 LEDs
1 battery
1 switch