Sensors

The TTP224 4-Channel Touch Sensor Module is a capacitive touch input module designed to replace traditional mechanical push buttons with reliable touch-sensitive controls. Based on the TTP224 capacitive touch detection IC, the module provides four independent touch pads, each with its own digital output, allowing users to easily implement touch...

The Soil Moisture Sensor Hygrometer Module is a simple and cost-effective sensor designed to measure the moisture content of soil by detecting its electrical conductivity. It consists of a soil moisture probe and an LM393 comparator module. As the moisture level in the soil changes, the resistance between the two...

The MQ-3 Gas Sensor Module is a semiconductor-based alcohol detection module designed to sense ethanol (alcohol) vapors in the air. Built around the MQ-3 gas sensor, it uses a tin dioxide (SnO₂) sensing element whose electrical conductivity increases as the alcohol concentration rises. The module provides both analog (AO) and...

The HC-SR04 Ultrasonic Sensor Module is a non-contact distance measurement sensor that uses 40kHz ultrasonic sound waves to accurately measure the distance between the sensor and an object. It consists of an ultrasonic transmitter, receiver, and control circuitry that calculate distance by measuring the time taken for the ultrasonic pulse...

The TSOP1838 IR Receiving Head is a compact infrared receiver designed to detect and decode 38kHz modulated infrared signals commonly used in remote control systems. It integrates a PIN photodiode, preamplifier, automatic gain control (AGC), band-pass filter, and demodulator into a single package, providing a clean digital output that can...

The 49E Linear Hall-Effect Sensor is a high-sensitivity analog magnetic field sensor designed to detect both the strength and polarity of magnetic fields. Unlike digital Hall sensors that simply switch ON or OFF, the 49E provides a continuous analog voltage output that changes proportionally with the magnetic field intensity, making...

The KY-035 Hall Magnetic Sensor Module is a compact analog magnetic field sensor designed to detect both the strength and polarity of magnetic fields using the AH49E (49E) linear Hall Effect sensor. Unlike digital Hall sensors that only indicate the presence of a magnetic field, the KY-035 produces a continuously...

The KY-022 Infrared IR Receiver Module is a compact infrared receiver designed to detect and decode 38kHz modulated infrared signals transmitted by standard remote controls. Built around a 1838-series IR receiver IC (such as VS1838B, TL1838, or TSOP1838 equivalent), the module converts infrared signals into clean digital pulses that can...

The KY-031 Tap Sensor Module is a compact vibration detection module designed to detect taps, knocks, shocks, and mechanical vibrations. It uses a highly sensitive spring-based vibration switch that momentarily closes when subjected to an impact or tap, generating a digital output signal that can be read by a microcontroller....

The KY-015 DHT11 Humidity and Temperature Sensor Module is a compact digital sensor module designed to measure both ambient temperature and relative humidity with a single device. It is based on the popular DHT11 digital sensor, which integrates a calibrated humidity sensing element, an NTC temperature sensor, and an internal...

The KY-002 Shock Sensor Module is a compact vibration and impact detection module designed to detect sudden shocks, knocks, or mechanical vibrations. It uses a high-sensitivity spring-type vibration switch that momentarily closes when subjected to movement or impact, producing a digital output signal. The module is ideal for applications where...

The Reed Switch Module with LM393 Comparator is a magnetic field detection module designed to detect the presence or absence of a nearby magnet. It combines a high-quality normally open (NO) reed switch with an LM393 voltage comparator, providing a clean and stable digital output for microcontroller-based applications. When a...