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if (ldrValue < threshold) { // Beam broken - intruder detected
For optimal image quality
Notch alignment indicator: Built-in orientation notch helps you align Pin 1 correctly every time
Can the JYQD-V7
MQ-2 Gas Sensor Module For H2, LPG, CH4, CO, Smoke or Propane Detector Module Arduino L293D Motor Driver shield if (ldrValue < threshold) {MQ 2 Gas Sensor Module Detect H2, LPG, CH4, CO, Smoke & Propane Reliable multi gas detection module from The Engineer Store, Bengaluru. The MQ 2 sensor module provides accurate, real time detection of combustible gases and smoke ideal for safety systems, IoT projects, and industrial monitoring. Fast shipping, 7 day warranty on manufacturing defects, and expert support included. Specifications Sensor Type MQ 2 Semiconductor Gas Sensor (SnO2 based)
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