You don't need a "fixed" datasheet; you just needed the correct one. The MH Flying Fish is a TCRT5000 reflective sensor paired with an LM393 comparator. Treat it as a digital switch that triggers when something gets within 2cm.
Today, we are going to fix that. Here is the actual working datasheet for the MH Flying Fish IR Sensor—no confusion included.
But there is one annoying problem:
If your sensor isn't working like the "broken" datasheet said, here is the troubleshooting guide:
if (sensorState == LOW) { // Object is close digitalWrite(ledPin, HIGH); Serial.println("Object Detected!"); } else { digitalWrite(ledPin, LOW); Serial.println("Clear"); } delay(100); } Mh Sensor Series Flying Fish Ir Sensor Datasheet Fixed
If you have a drawer full of sensors, chances are you have a few green modules labeled MH Sensor Series "Flying Fish" . These are arguably the most common infrared (IR) proximity sensors on the market. They are cheap, reliable for line-following robots and tachometers, and they run on 5V.
Here are the verified specifications. Ignore any PDF that claims different voltages or pinouts without looking at the back of the board. You don't need a "fixed" datasheet; you just
Your object is too shiny or too dark. This sensor hates glossy white surfaces (reflects too well) and pure black surfaces (absorbs all IR). For line following, use white tape on black paper.