This example introduces a wireless remote control switch made by micro wireless remote control transmitter and receiver. It has the characteristics of simple circuit, easy production and convenient debugging. It can be used in pulse trigger circuit or electrical equipment that controls short-time operation (such as electric curtains, Electric shutter doors, electric toys, etc.).
The wireless remote control switch circuit is composed of a wireless remote control transmitting circuit and a wireless remote control receiving control circuit.
The wireless remote control transmitting circuit is composed of a control button s, a wireless remote control transmitting head IC1, a time base integrated circuit IC2, diodes VD1, VD2, resistors R1 to R3, a potentiometer RP and capacitors C1 and C2, as shown in the figure.
Wireless remote control transmitting circuit
The wireless remote control receiving control circuit is composed of a wireless remote control receiving head IC3, a decoder and a control execution circuit, as shown in the figure.
Wireless remote control receiving control circuit
Component selection
R1 to R4 use 1/4W carbon film resistors or metal film resistors.
The RP uses a solid variable resistor.
C1 ~ C5 are selected monolithic capacitors.
VD1 ~ VD3 select 1N4148 type silicon switch diode.
V selects S8050 or C8050, 3DG8050 type silicon NPN transistor.
IC1 selects T630 type integrated wireless remote control transmitter; IC2 selects NE555 type time base integrated circuit; IC3 selects T631 type wireless remote control receiving head matched with IC1; IC4 selects LM567 type decoding integrated circuit.
S selects the movable (normally open) type button.
K selects 6V DC relay, and its contact current capacity can be determined according to the power of the controlled appliance.
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