Mh Mq Sensor Flying Fish File

const int numSensors = 3; float baseline[numSensors]; float current[numSensors]; float delta[numSensors];

| Sensor | Target Gases | Best for “Flying Fish” | Response Time | Heating Current | |--------|--------------|------------------------|---------------|----------------| | MQ-2 | LPG, propane, smoke, methane | Yes – fast response to combustible gases | <10s | ~750 mA | | MQ-3 | Alcohol, ethanol vapor | Ideal for ethanol “flying fish” | <10s | ~750 mA | | MQ-135 | CO2, ammonia, benzene, smoke, alcohol | Wide range, good for indoor air plumes | <20s | ~800 mA |

| Symptom | Likely cause | Fix | |---------|--------------|-----| | Constant high readings | Sensor aging / contamination | Bake at 100°C for 1 hour (outside) | | No response to moving source | Load resistor too high | Reduce RL to 4.7 kΩ | | Slow recovery after peak | Enclosed space, no air flow | Add a small fan for ventilation | | False positives (no gas) | Temperature surge | Apply digital low‑pass filter (moving average n=5) | mh mq sensor flying fish

For general “flying fish” (unknown vapor), use MQ-2 . For ethanol‑based flying fish (e.g., drone with alcohol spray), use MQ-3 .

The label refers to a popular series of sensor breakout boards manufactured by MH Electronic . These modules, identifiable by their distinct blue PCBs and "Flying Fish" branding, are designed to make high-performance sensors—like the MQ gas series —accessible for rapid prototyping with microcontrollers like Arduino, ESP32, and Raspberry Pi. Understanding the MH MQ "Flying Fish" Series const int numSensors = 3; float baseline[numSensors]; float

: Power indicators and output status lights for visual debugging. Popular MQ Sensors in the Flying Fish Series

(MQ sensors drift):

If you're looking for more information or details on how such a project works, here are some general points you might consider:

A stationary gas source produces a steady rise and plateau. A moving source (flying fish) produces a followed by a rapid drop. These modules, identifiable by their distinct blue PCBs

(Vmax) and time to return to 50% of peak (T50).

The integration of MH-MQ sensors has opened up new avenues for studying the aerodynamics of flying fish. This research has the potential to: