This example describes a 16-channel wireless remote control switch, which can freely control the opening and closing of 16-channel household appliances within 60m, without the influence of obstacles such as walls, doors and windows.
The wireless remote control switch circuit consists of a wireless remote control transmission circuit and a wireless remote control receiving control circuit.
Wireless remote control transmitter circuit consists of control buttons S1 ~ S16, resistors R1 ~ R3, capacitor C1 Zener diode VS, crystal oscillator BC1, DTMF encoding integrated circuit IC1 and wireless remote control emission integrated circuit IC2, as shown.
Wireless remote control transmitter circuit
The wireless remote control receiver circuit is composed of a wireless remote receiver/decoder circuit and a trigger control circuit as shown in the figure.
Wireless remote receiver/decoder circuit
Component selection
R1, R2 and R4, R6 ~ R39 use 1/4W carbon film resistors or metal film resistors; R3 and R5 are selected 1/2W metal film resistors.
C1 to C3 are all aluminum electrolytic capacitors with a voltage rating of 16V.
VS selects 1/2W, 5.1V silicon zener diodes.
VL1 ~ VL16 use φ3mm ordinary light-emitting diodes.
V1 selects S9013 silicon NPN transistor for use; V2- V17 selects C8050 or S8050, Model 3DG8050 silicon NPN transistor for use.
IC1 uses UM95087 type telephone to use DTMF dialing coded integrated circuit; IC2 selects HS101 type wireless remote control to launch thick film integrated circuit; IC3 selects HS201 type wireless remote control to receive thick film integrated circuit; IC4 selects MC145436 type telephone to use DTMF decoding integrated circuit; IC5 selects CD4514 or MC14514 type 4-16 line decoder integrated circuit; IC6-IC13 (D1-D16) selects CD4013 type double D toggle integrated circuit.
S1 to S16 can use a combination keyboard or a miniature button for a telephone.
K1 ~ K16 are selected 9V power DC relay.
Both BC1 and BC2 use a 3.58MHz quartz crystal oscillator.
Data Acquisition Analog To Digital Converters
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