Mh Sensor Series Flying Fish Ir Sensor Datasheet Fixed · Legit

The onboard 10kΩ trimpot is wired as a voltage divider for the comparator's reference voltage, but the circuit uses a simple resistive divider without hysteresis.

Solder a 100µF electrolytic capacitor between VCC and GND on the sensor board itself, or add a 0.1µF ceramic capacitor directly across the power pins at the connector.

If you have searched for the phrase , you are likely one of the thousands of makers, robotics engineers, or students who have been frustrated by a common problem. You bought an affordable IR sensor module—often labeled "MH Sensor Series" or "Flying Fish"—only to find that the pinout diagram in the generic datasheet is wrong, the range is inconsistent, or the comparator output behaves unexpectedly. Mh Sensor Series Flying Fish Ir Sensor Datasheet Fixed

Do not trust the silkscreen if it says "SIG" in the middle. On almost all Flying Fish MH sensors made after 2018, the silkscreen is incorrectly placed. Always verify with a continuity test between the center pin and the negative terminal of the power LED.

However, the actual physical board, when tested with a multimeter, reveals the correct pinout is almost always: The onboard 10kΩ trimpot is wired as a

| Parameter | Condition | Min | Typ | Max | Unit | |-----------|-----------|-----|-----|-----|------| | Current Consumption | No obstacle | - | 12 | 18 | mA | | Current Consumption | Obstacle detected | - | 15 | 22 | mA | | Output Low Voltage (Active) | Iout = 15mA | 0 | 0.4 | 0.8 | V | | Output High Voltage (Inactive) | No load | 4.5 | 5.0 | - | V | | Detection Range | White paper (90% reflectivity) | 2 | 15 | 30 | cm | | Detection Range | Black paper (10% reflectivity) | 1 | 5 | 10 | cm | | Response Time | Step change | - | 5 | 20 | µs |

Today, we are going to fix that. Here is the actual working datasheet for the MH Flying Fish IR Sensor—no confusion included. You bought an affordable IR sensor module—often labeled

Before dissecting the datasheet, it is essential to understand what the "Flying Fish" designation actually means. In the Arduino and maker communities, "Flying Fish" is a specific form-factor design for sensor boards. It typically refers to a standardized PCB layout that is compact, features a standard 3-pin or 4-pin interface, and is optimized for easy mounting.

| Feature | MH Flying Fish (Fixed) | TCRT5000 Module | Sharp GP2Y0A21 | |---------|------------------------|------------------|----------------| | Output | Digital (LOW=obstacle) | Digital | Analog (voltage) | | Max Range | 30cm (white) | 15cm | 80cm | | Ambient Light Rejection | Poor | Moderate | Excellent | | Pinout Confusion | High (needs fixed) | Low | None (standardized) | | Price | $1.50 | $2.00 | $12.00 |