This musical light alarm circuit is very simple, uses only 7 components, a LDR and a 3.6 V battery or 3 x 1.2 volts rechargeable batteries. The well-known UM66 is used as the sound generator and will ...
This is a very interesting a.c. voltage stabilizer that uses a LDR or photoresistor to stabilize an alternating current (AC). If the voltage increases then the brightness of the light bulb increases ...
WARANGAL: Known for his low-cost innovations meant to address issues of people across villages, Mupparapu Raju, a well-known inventor in the Warangal district, has now come back with Light Dependent ...
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