Morning sun alarm circuit using IC-4011
This is Morning sun alarm circuit using IC-4011 that hobby It will have sound alarm when morning like a normal clock alarm with lighting sensor same clock. Read more
LDR sensor
8 Light sensor alarm or Sensitive Sound Generator
These are four light sensor alarm circuits, when be become dark, or Light sensitive switch.Use part is important light sensor LDR light dependent resistor […] Read more
Simple Light meter circuit You can do!
There are many ways to build a light meter circuit. It is a tool to measure the quantity of light, widely used to a photography, To decide the correctness of the exposure.Sometimes, we are use with other works, such as my son likes to use in science experiments, which do not need to have high … Read more
Simple Refrigerator/fridge Door Alarm circuit
This is a Simple Refrigerator Door Alarm circuit, it will detect light of lamp in the fridge and alert with buzzer.Small size, easy to make and cheapest. […] Read more