TSOP4840 IR Receiver IC

Description

TSOP4840 IC Integrated Circuits

• INFRARED RECEIVER, 40KHZ
• Carrier Frequency: 40kHz
• Transmission Range: 45m
• Supply Voltage Range: from 2.7 V to 5.5 V
• Opto Case Style: Through Hole Mount
• Operating Temperature Range: From to
• Forward Current If: 5mA
• Maximum Forward Current If Max: 5mA
• Number of Pins: 3
• Package / Case: SIP
• Power dissipation Pd: 50mW

We have technical specifications of all components available, should it not be present in the product download sheet, send a message from the contact us module and we will publish it as soon as possible on our website.

Tutorial: How to use TSOP4840

The TSOP4840 is an infrared receiver suitable for remote control and remote control projects. Suitable for beginners and intermediates.

What you need

• TSOP4840
• Arduino
• 1kΩ Resistor
• Power cable

Steps

1. 1. Installation: Mount the TSOP4840 on a protoboard.
2. 2. Connection: Connect VCC to Arduino’s 5V, GND to GND, S0 to pin 2 and S1 to pin 3.
3. 3. Resistor: Connect a resistor between S0 and GND to protect the pin.
4. 4. Code: Load the example code onto Arduino.
5. 5. Test: Use a remote control to send infrared signals.
6. 6. Debug: Check the datasheet for pin and specifications.
7. 7. Protection: Add an EMI filter between VCC and GND.
8. 8. Mounting: Ensure the receiver is well protected.

Example code

```void setup() { Serial.begin(9600); pinMode(2, INPUT); pinMode(3, INPUT);}void loop() { if (digitalRead(2) == HIGH) { Serial.println("S0 = HIGH"); } if (digitalRead(3) == HIGH) { Serial.println("S1 = HIGH"); }}```

Mini project

Create a small remote control system with a remote and an LED. Turn the LED on/off when you receive a command.

Common mistakes

• Forget to connect the resistor between S0 and GND.
• Power the TSOP4840 with a power supply other than 5V.
• Connect the pins directly to VCC/GND without protection.
• Omit the EMI protection code.

Recommended accessories

• Infrared remote control
• LED
• 10 kΩ resistor
• Protoboard

Frequently asked questions

What are the pins of the TSOP4840?
You only need VCC, GND, S0, and S1.

Can I use a power supply other than 5V?
Check the datasheet for power supply compatibility.

How can I protect the TSOP4840?
Add an EMI filter between VCC and GND.

What are the S0 and S1 pins?
S0 and S1 are the signal pins that receive the infrared signals.