TSOP Module
📡 TSOP Infrared Receiver Module
IR Signal Detection • Remote Control Interface • Digital Output Sensor
The TSOP Infrared Receiver Module is an electronic sensor designed to receive infrared signals from remote controls and convert them into digital signals for microcontrollers. These modules are widely used in TV remote systems, home automation, robotics, and Arduino-based IR communication projects.
TSOP modules typically work with infrared signals modulated around 38 kHz, allowing them to filter noise and accurately detect commands from IR transmitters.
📊 Infographic Overview
🔹 Basic Specifications
| Feature | Details |
|---|---|
| 📡 Sensor Type | Infrared Remote Receiver |
| 📶 Carrier Frequency | Usually 38 kHz |
| 🔌 Operating Voltage | 2.7V – 5.5V |
| 📤 Output Signal | Digital |
| 📏 Detection Range | Up to ~10 meters |
| ⚡ Power Consumption | Very Low |
🧩 Main Components
| Component | Description |
|---|---|
| 🔴 IR Photodiode | Detects incoming infrared light |
| ⚙ Automatic Gain Control (AGC) | Adjusts signal strength |
| 📡 Demodulator Circuit | Filters the 38 kHz carrier signal |
| 🔌 Output Pin | Sends digital data to microcontroller |
🔌 Pin Configuration
| Pin | Function |
|---|---|
| VCC | Power supply (3.3V–5V) |
| GND | Ground |
| OUT | Digital output signal |
⚙️ Working Principle
The module receives and processes modulated infrared signals.
Step-by-Step Operation
1️⃣ An IR remote control transmits modulated infrared signals.
2️⃣ The photodiode detects the infrared light pulses.
3️⃣ The module filters signals at the 38 kHz carrier frequency.
4️⃣ The demodulated signal is converted into digital pulses.
5️⃣ A microcontroller decodes the pulses to determine the remote command.
📐 Signal Flow Diagram
IR Remote Control
│
▼
Infrared Light Signal
│
▼
TSOP Receiver Module
(AGC + Demodulator)
│
▼
Digital Output
│
▼
Microcontroller
🤖 Common Applications
📺 TV and multimedia remote systems
🏠 Home automation remote control
🤖 Remote-controlled robots
🔌 Wireless appliance switching
📡 IR communication projects
🔌 Compatible Microcontrollers
The module works easily with:
Arduino Uno
Arduino Nano
ESP32
Raspberry Pi
📊 TSOP vs IR Obstacle Sensor
| Feature | TSOP IR Receiver | IR Obstacle Sensor |
|---|---|---|
| Purpose | Remote signal reception | Object detection |
| Output | Digital pulses | Digital / Analog |
| Detection Range | Several meters | Few centimeters |
| Application | Remote control systems | Robotics sensing |
💡 Advantages
✅ High sensitivity to IR remote signals
✅ Built-in noise filtering
✅ Long detection range
✅ Low power consumption
✅ Easy microcontroller interface
⚠️ Limitations
❌ Works only with modulated IR signals
❌ Performance affected by strong sunlight
❌ Requires decoding libraries for microcontrollers
🔧 Example DIY Project
📡 Arduino IR Remote Control System
Components
TSOP Infrared Receiver Module
Arduino Uno
IR remote control
LED or relay module
Working
✔ Remote sends infrared command
✔ TSOP module receives the signal
✔ Arduino decodes the command
✔ LED or device switches ON/OFF
