Remote ControlAt this circuit you can give a variety of utilities, from an alarm, to open a door, turn on a light in the garden or courtyard, and so on. Your imagination has the last word.
HOW IT WORKS: The operating principle is based on the properties of a photoelectric PHOTOCELL or light, the substances with which this is constructed, its resistance varies with the degree of light it receives.
When this component is placed in series with other components resistive, and then connect to the poles of a power supply, you get a voltage divider, which is dependent on the light. When these variations amplified voltage properly, we can activate a relay (relay, relay, circuit breaker), an SCR (silicon controlled rectifier), a triac, and so on. and I manage teams with higher amperage.
List of components:
LDR1: light (PHOTOCELL)
Q2: 2N2222 (NTE 123A)
D1 - D2: 1N4002
C1: 470 µF 25 V.
T1: transformer 110/220 (Primary) and 24 in the secondary referral central
K1: Relay with coil to 12 volts and 100 oo 200mA.
S1: Switch 1 pole 1 position
S1: Switch 1 pole position l
T1: Transformer with primary and secondary for 115 volts to 100 volts for 6 or 200mA.
B1: 1 or 2 batteries of 1.5 volts
1 plastic tube of 2 inches in diameter and 10 inches long.
Contacts: Strips of aluminum in the form of caps that fit the plastic tube.
pcb expensive components print
Tags: remote control, science, technology, electronics, nanotechnology, batteries, nano transistors