The flying fish passed closest to S1 at t≈120 ms.
const int numSensors = 3; float baseline[numSensors]; float current[numSensors]; float delta[numSensors];
MH-MQ sensors are a type of gas sensor commonly used in industrial and environmental monitoring applications. These sensors are capable of detecting a wide range of gases, including volatile organic compounds (VOCs), ammonia, and hydrogen. They operate on the principle of chemoresistance, where the sensor's electrical resistance changes in response to the presence of specific gases. mh mq sensor flying fish
A stationary gas source produces a steady rise and plateau. A moving source (flying fish) produces a followed by a rapid drop.
April 14, 2026 Subject: Using MQ-2 / MQ-135 sensors to detect transient, moving gas plumes (“flying fish”) Prepared for: Hobbyists, environmental monitoring, and robotics developers The flying fish passed closest to S1 at t≈120 ms
void setup() for (int i=0; i<numSensors; i++) baseline[i] = readSensor(i); // average over 100 samples
: Usually VCC (5V), GND, Digital Output (D0), and Analog Output (A0). They operate on the principle of chemoresistance, where
MQ sensors (MQ‑2, MQ‑3, MQ‑135) can effectively detect a moving gas source (“flying fish”) when used in a small array with a transient‑sensitive algorithm. Key points:
To design a low‑cost, real‑time detection system that identifies and tracks a moving gas source (the “flying fish”) using one or more MQ sensors, with emphasis on sensitivity, response time, and false‑positive rejection.
delay(100);