Sensors

The LDR Light Sensor Digital Module is a compact ambient light detection module that uses a Light Dependent Resistor (LDR) and an LM393 voltage comparator to detect changes in light intensity. Unlike analog LDR modules, this module provides a digital output, making it ideal for applications where a simple light/dark...

This pair of High power directional IR LED and Filtered photodiode can be used in various kinds of sensing circuits. The narrow beamwidth IR LED emits focused IR light and the filtered photodiode filters out ambient light without the need of any external circuit. When used with a proper circuit...

The KY-018 Photosensitive Resistor Sensor Module is a compact light detection module that uses a Light Dependent Resistor (LDR) to measure ambient light intensity. As the surrounding light level changes, the resistance of the LDR varies, producing an analog voltage that can be read by a microcontroller for accurate light...

The KY-013 Analog Temperature Sensor Module is a compact and easy-to-use temperature sensing module that uses a high-precision NTC (Negative Temperature Coefficient) thermistor to measure ambient temperature. Unlike digital temperature sensors, the KY-013 provides a continuously varying analog voltage that changes according to the surrounding temperature, allowing microcontrollers to perform...

The KY-028 Digital Temperature Module is a compact temperature sensing module designed to detect ambient temperature using a high-sensitivity NTC thermistor and an LM393 voltage comparator. The module provides both analog and digital outputs, allowing users to monitor continuous temperature changes or trigger events when a preset temperature threshold is...

The KY-036 Metal Touch Sensor Module is a simple touch detection module designed to sense contact with conductive objects such as a human finger or metal surface. The module uses a metal touch pad and an LM393 comparator to detect changes in electrical conductivity and capacitance, providing both analog and...

The TTP223 Capacitive Touch Sensor Module is a compact touch-sensitive input module designed to replace traditional mechanical push buttons. Based on the TTP223 capacitive touch sensing IC, the module detects the touch of a finger through changes in capacitance and generates a digital output signal. Unlike mechanical switches, the TTP223...

The KY-038 Small Microphone Sound Sensor Module is a compact audio detection module designed to sense sound levels in the surrounding environment. It features a high-sensitivity electret microphone and an LM393 comparator circuit that converts sound signals into both analog and digital outputs. The module can detect claps, voices, knocks,...

The KY-037 Microphone Sound Detection Module is a sensitive audio detection sensor designed to detect sound levels and acoustic signals in the surrounding environment. The module combines an electret microphone with an LM393 voltage comparator, providing both analog and digital outputs for sound monitoring and sound-triggered applications. The analog output...

The KY-010 Photo Interrupter Sensor Module is an optical detection sensor designed to detect the presence, movement, or interruption of an object passing through its sensing slot. The module consists of an infrared LED emitter and a phototransistor receiver positioned opposite each other in a U-shaped housing. When an object...

The KY-001 DS18B20 Temperature Sensor Module is a high-precision digital temperature sensing module based on the popular DS18B20 digital temperature sensor. It communicates using the 1-Wire protocol, allowing multiple sensors to operate on a single data line while requiring only one microcontroller pin for communication. The DS18B20 provides accurate temperature...

The KY-017 Mercury Tilt Switch Module is a simple orientation and motion detection module that uses a mercury tilt switch to detect changes in position or inclination. When the module is tilted beyond a certain angle, the mercury inside the switch flows and creates an electrical connection, changing the output...