Hello
I'm new to electronics and hoping someone can help me out with my light dark indicating circuit.
This circuit is working fine with my photo-transistor though i need it to trigger in reverse.
ie; When there is no light the led will illuminate.
photo transistor- http://www.jaycar.com.au/products_uploaded/ZD1950.pdf
NPN transistor- http://www.nxp.com/documents/data_sheet/BC549_550.pdf
Any help would be greatly appreciated.
I'm new to electronics and hoping someone can help me out with my light dark indicating circuit.
This circuit is working fine with my photo-transistor though i need it to trigger in reverse.
ie; When there is no light the led will illuminate.
photo transistor- http://www.jaycar.com.au/products_uploaded/ZD1950.pdf
NPN transistor- http://www.nxp.com/documents/data_sheet/BC549_550.pdf
Any help would be greatly appreciated.
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