The **IRS080-R11VF40** is a specific model of an **Infrared (IR) Receiver Module**, commonly used in consumer electronics for wireless remote control communication. It integrates a photodiode, a preamplifier, and a signal processing circuit into a single compact package. --- ### 1. Key Technical Specifications Below are the typical specifications for this class of IR receiver: | Feature | Specification | | :--- | :--- | | **Carrier Frequency** | 38 kHz or 40 kHz (Model dependent) | | **Supply Voltage (Vcc)** | 2.7V to 5.5V | | **Current Consumption** | ~0.5 mA to 1.5 mA | | **Reception Distance** | Up to 15 - 20 meters | | **Peak Wavelength** | 940 nm | | **Output Type** | Active Low (TTL/CMOS compatible) | --- ### 2. Internal Components & Architecture The device is not just a sensor; it is an Integrated Circuit (IC) that performs several stages of signal processing: 1. **Photodiode:** Converts the incoming infrared light pulses into a weak electrical current. 2. **Automatic Gain Control (AGC):** Adjusts the sensitivity to compensate for different light levels and distances. 3. **Band Pass Filter (BPF):** Specifically tuned to the carrier frequency (e.g., 40 kHz) to filter out ambient noise from sunlight or fluorescent bulbs. 4. **Demodulator:** Removes the carrier frequency and outputs the raw data bits (0s and 1s). 5. **Output Driver:** Provides a digital signal that can be directly read by a microcontroller (like Arduino, ESP32, or a TV SoC). --- ### 3. Pin Configuration The module typically features three pins. While the order can vary by manufacturer, the standard layout is: * **VCC:** Power Supply (Connect to 3.3V or 5V). * **GND:** Ground. * **OUT (Signal):** The demodulated digital output connected to a GPIO pin on a microcontroller. --- ### 4. Implementation Example (Arduino) To use this part in a circuit, you can use the following logic: ```cpp #include const int RECV_PIN = 7; // Connect OUT pin to D7 IRrecv irrecv(RECV_PIN); decode_results results; void setup() { Serial.begin(9600); irrecv.enableIRIn(); // Start the receiver } void loop() { if (irrecv.decode(&results)) { Serial.println(results.value, HEX); // Print received code irrecv.resume(); // Receive the next value } } ``` --- ### 5. Common Applications * **Home Entertainment:** TV, DVD players, and Soundbar remote receivers. * **Climate Control:** Air conditioning units. * **Home Automation:** IR-controlled lighting and smart fans. * **Industrial:** Remote start/stop triggers for machinery in safe zones.