Introduction

The Infrared (IR) Remote Control Switch Circuit offers a cost-effective solution for managing household appliances in our fast-paced lives. Consequently, there is significant emphasis on this technology, resulting in various remote-control options available today. Among the most common is one that utilises IR radiation at specific frequencies to operate devices. Therefore, this guide will demonstrate creating an "Infrared IR Remote Control Relay Module" using TSOP1713 and the CD4017 Decade Counter IC.

This circuit serves as a remote-operated home appliance control system. It can be connected to various household appliances such as lamps, fans, radios, etc., enabling them to be turned on/off using a TV, VCD, VCR, air conditioner, or DVD remote control. The circuit can be activated from a distance of up to 8 meters and is straightforward to construct, suitable for assembly on a standard prototype PCB.

Components

• C1 1 1uF C_Polarized_Small_US Capacitor_THT:CP_Radial_D5.0mm_P2.50mm Polarized capacitor, small US symbol
• D1 1 LED_Small LED_Small LED_THT:LED_D3.0mm Light emitting diode, small symbol
• D2 1 1N4007 1N4007 Diode_THT:D_DO-41_SOD81_P10.16mm_Horizontal 1000V 1A General Purpose Rectifier Diode, DO-41 J1 1 Screw_Terminal_01x03 Screw_Terminal_01x03 282834-3:TE_282834-3 Generic screw terminal, single row, 01x03, script generated (kicad-library-utils/schlib/autogen/connector/)
• J2 1 Screw_Terminal_01x02 Screw_Terminal_01x02 282834-2:TE_282834-2 Generic screw terminal, single row, 01x02, script generated (kicad-library-utils/schlib/autogen/connector/)
• K1 1 RT314A06 RT314A06 Relay_THT: Relay_SPDT_Schrack-RT1-16A-FormC_RM5mm Schrack RT1 relay, bistable-single pole dual throw, single DC coil, 6V
• Q1 1 BC557 BC557 Package_TO_SOT_THT:TO-92_Inline 0.1A Ic, 45V Vce, PNP Small Signal Transistor, TO-92
• Q2 1 BC547 BC547 Package_TO_SOT_THT:TO-92_Inline 0.1A Ic, 45V Vce, Small Signal NPN Transistor, TO-92
• R1 1 10k R_Small_US Resistor_THT:R_Axial_DIN0207_L6.3mm_D2.5mm_P10.16mm_Horizontal Resistor, small US symbol R2 1 100k R_Small_US Resistor_THT:R_Axial_DIN0207_L6.3mm_D2.5mm_P10.16mm_Horizontal Resistor, small US symbol R3 1 220 R_Small_US Resistor_THT:R_Axial_DIN0207_L6.3mm_D2.5mm_P10.16mm_Horizontal Resistor, small US symbol R4 1 1k R_Small_US Resistor_THT:R_Axial_DIN0207_L6.3mm_D2.5mm_P10.16mm_Horizontal Resistor, small US symbol U1 1 TSOP17xx TSOP17xx OptoDevice:Vishay_CAST-3Pin Photo Modules for PCM Remote Control Systems
• U2 1 4017 4017 Package_DIP:DIP-16_W7.62mm Johnson Counter ( 10 outputs )

Infrared Remote Control Circuit

How it Works

The circuit uses an infrared remote control, which produces infrared rays at 38 kHz. The IR receiver module TSOP 1738 detects these rays. This module, pin1 is connected to the ground, pin2 to the power supply, and pin3 to the output signal through a 10k resistor labeled R1. A transistor Q1 (BC557) is used to boost the output signal. The amplified signal is then routed to the decade counter IC CD4017 (IC1)'s clock pin 14. The ground supply is connected to pin 8 of IC1, while the Vcc supply is attached to pin 16.

Pin2 of IC1 is used to retrieve its output. A red LED is connected to pin 2 to signify the device's 'on' status. The base of transistor Q2 (BC547) is linked to pin 2 of IC1, acting as a relay driver and a switching mechanism. The appliance to be controlled is linked to the relay's pole and the neutral terminal of the power supply. When the relay gets an input, it connects the appliance to the AC mains live terminal through its Normally Open (N/O) contact. As a result, pressing the remote control toggles the relay, allowing any connected device to be turned on or off.

Installation Process

Firstly, the relay is soldered, followed by the output terminal block and the IC base. Afterwards, the diode and the transistor are soldered. After that, insert every resistor by soldering them, followed by soldering the TSOP1738. The output connector is then soldered, and an AC bulb is added cautiously to series with the output. Finally, the circuit is tested.

Uses

The TSOP1738 & CD4017 infrared remote control relay module is used in various fields, including wireless controlling, communicating over extended distances, and managing household devices such as fans, refrigerators, and televisions.

 How to Use Such a Board

This board can be manufactured through PCBWay. Besides manufacturing, the board can be used with other development boards like Arduino and Raspberry Pi. These crucial modules can be purchased through PCBWay, too, through ordering at the product menu page. You can receive such boards as a gift, buy them using coupons, redeem your reward points, or deposit money into your PCBway account and order directly.