The **B-01-RTS** is a common identification code for a specific type of **Infrared (IR) Receiver Module**, widely used in remote control systems for televisions, air conditioners, and toy drones. --- ### 1. Technical Specifications The B-01-RTS belongs to the family of integrated IR receivers. Below are the typical electronic characteristics: | Parameter | Value/Range | |:---|:---| | **Operating Voltage** | 2.7V to 5.5V DC | | **Carrier Frequency** | 38 kHz (Standard) | | **Current Consumption** | 0.5 mA to 1.5 mA | | **Reception Distance** | 10 - 15 Meters | | **Reception Angle** | ±45 Degrees | | **Output Type** | Active Low (Digital) | --- ### 2. Internal Electronic Components The device is not just a sensor; it is an Integrated Circuit (IC) encapsulated in an epoxy package with a built-in filter. It contains: 1. **Photodiode:** Detects the incoming infrared light pulses. 2. **Preamplifier:** Boosts the weak electrical signal from the photodiode. 3. **Automatic Gain Control (AGC):** Adjusts sensitivity to compensate for ambient light interference. 4. **Band Pass Filter:** Specifically tuned to **38kHz** to block out IR noise from sunlight or light bulbs. 5. **Demodulator:** Removes the 38kHz carrier wave to provide a clean square-wave signal to the microcontroller. --- ### 3. Pinout Configuration The B-01-RTS typically features three leads. While orientation can vary by manufacturer, the standard layout (looking at the "bump" side) is: | Pin Number | Name | Function | |:---:|:---:|:---| | 1 | **OUT** | Data signal output to Microcontroller (Arduino/ESP32) | | 2 | **GND** | Ground (0V) | | 3 | **VCC** | Power Supply (Typically 5V) | --- ### 4. Basic Implementation Circuit To protect the sensor from power supply noise, it is recommended to use a simple RC filter as shown in the logic below: ```cpp // Example: Basic Arduino Read Logic int irPin = 2; // Connected to OUT pin of B-01-RTS void setup() { pinMode(irPin, INPUT); Serial.begin(9600); } void loop() { int signal = digitalRead(irPin); if (signal == LOW) { Serial.println("IR Signal Detected!"); } } ``` --- ### 5. Key Applications * **Consumer Electronics:** TV, DVD, and Stereo remote receivers. * **Robotics:** Obstacle detection (when paired with an IR LED) and remote navigation. * **Home Automation:** Controlling smart lights or fans via standard IR remotes.