Mh Sensor Series Flying Fish Ir Sensor Datasheet Fixed Online

// MH Flying Fish IR Sensor Test int sensorPin = 2; // Digital Pin 2 int ledPin = 13; // Built-in LED void setup() { pinMode(sensorPin, INPUT); pinMode(ledPin, OUTPUT); Serial.begin(9600); }

Here are the verified specifications. Ignore any PDF that claims different voltages or pinouts without looking at the back of the board.

if (sensorState == LOW) { // Object is close digitalWrite(ledPin, HIGH); Serial.println("Object Detected!"); } else { digitalWrite(ledPin, LOW); Serial.println("Clear"); } delay(100); }

Decoding the MH Flying Fish IR Sensor: Why Your Datasheet is Broken (And How to Fix It) Mh Sensor Series Flying Fish Ir Sensor Datasheet Fixed

But there is one annoying problem:

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.

Stop reading the fake datasheet and run this code instead: // MH Flying Fish IR Sensor Test int

Your potentiometer is mis-set. Turn the blue box trimmer counter-clockwise. The Flying Fish has a digital output, not analog. The pot adjusts the threshold . If the threshold is too low, it will always read "1" (nothing detected).

Today, we are going to fix that. Here is the actual working datasheet for the MH Flying Fish IR Sensor—no confusion included.

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. The MH Flying Fish is a TCRT5000 reflective

void loop() { int sensorState = digitalRead(sensorPin);

The datasheet says "20cm"? Lie. This is a proximity sensor, not a distance sensor. Max reliable range is ~2.5cm (1 inch). If you need long range, buy an ultrasonic or Time-of-Flight (VL53L0X) sensor.