This video is about how to make object counter by LDR(light dependent resistance)
The resistance will change according to light ,when light falls on LDR resistance start's to decrease vice versa in darken area.
LDR is connected to base of transistor so when light falls on LDR the collector and emitter short circuited, then postive voltage get to into the clock of IC ( this IC work on postive edge).
Required stuffs
1. Bread Board
2. LDR
3. 4026
4. BC547
5. POT 10K- 100K
6. 1K
7. 7-SEGMENT DISPLAY ( CATHODE)
8. Connectors
CIRCUIT: [ Ссылка ]
