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Headline: 🔥 Need the FC-51 IR Sensor Datasheet? It’s trending hot! 🌡️🤖
Body: Working on an obstacle avoidance robot or a line follower? The FC-51 Infrared Obstacle Avoidance Sensor is a staple for Arduino and ESP32 projects. If you are looking for the specs, pinouts, and technical details to get your build moving, check out the datasheet below.
📂 Download the FC-51 Datasheet here: [Insert Link] fc 51 ir sensor datasheet hot
Key Specs: ✔️ Operating Voltage: 3.3V - 5V ✔️ Detection Range: 2cm ~ 30cm (Adjustable) ✔️ Interface: Digital Output (High/Low) ✔️ Built-in LED Indicator
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The FC-51 is built around the LM393 voltage comparator and an active infrared sensor pair. Below are the critical technical parameters: Best for sharing the datasheet link quickly with
Pin Configuration:
The FC-51 is a cheap, ubiquitous infrared reflective sensor module. It uses:
Common uses: line-following robots, obstacle detection, tachometers, and object counters. The FC-51 is built around the LM393 voltage
The blue trimmer pot is carbon-track, which changes resistance with temperature. A 10°C rise can shift the threshold by 5–10%, altering the detection range. This is why your robot might detect at 15cm when cold, but only 8cm when hot.
Point the sensor downward at a pet’s water bowl. When the water level drops below 5 cm, the reflection changes, triggering a small LED or buzzer. It’s a dead-simple hydration monitor for your furry friend.
Search volume for “fc 51 ir sensor datasheet hot” has surged because many users notice performance degradation after 10–15 minutes of continuous operation. Here is what actually happens.
The IR LED emits a 38kHz–56kHz modulated signal (though many clones use continuous IR). The phototransistor detects reflected IR from an obstacle. The LM393 comparator compares the phototransistor’s voltage to a reference voltage set by a potentiometer (blue box on the board). When reflected IR exceeds the threshold, the output goes LOW.