Smart Pitot Tube Blockage Detection & Alert System

Pitot tube blockage remains a significant
safety issue in aviation, as it can result in inaccurate
airspeed readings and compromised flight performance.
This paper presents a Smart Pitot Tube Blockage
Detection and Alert System designed to identify and
address such failures in real time. The system utilizes an
ESP32 microcontroller integrated with a flow sensor to
continuously monitor airflow within the pitot tube. A
predefined threshold is used to detect abnormal airflow
conditions, indicating potential blockages caused by ice,
dust, insects, or moisture. Upon detection, a relaycontrolled
air pump is automatically activated to clear
the obstruction, ensuring continued system reliability.
An LCD display provides real-time updates on airflow
values, system status, and warning alerts, while a push
button enables manual operation for maintenance
purposes. The proposed system improves aviation safety
by enabling early detection, automated corrective action,
and clear monitoring, making it suitable for applications
in UAVs, ground testing systems, and aviation training
environments.