E34

This Light sensor module based on photodetector GL5528 to detect the light intensity of the environment. As the resistance of the sensor varies depending on the amount of light it is exposed to, the output voltage changes with the ligth intensity.This module outputs both analog and digital signals, which can be used to trigger other modules.Also, the protentiometer can be used to adjust the sensitivety of digital output. The digital terminal output HIGH when the ligth intensity exceeds the value set by potentiometer, and vice versa.

IR Proximity Sensor

This IR Proximity Sensor is a multipurpose infrared sensor which can be used for obstacle sensing, color detection, fire detection, line sensing, etc and also as an encoder sensor. The sensor provides a digital output.

Description:

This is a high quality module, sound sensor \ detector. The device is equipped with a potentiometer sensitivity adjustment so you can detect sounds of varying range intensity .

Product specification:

Size: 32mm X 17mm X 8mm(length X width X height)

Weight: 4g Main chip :LM393, Electret condenser microphone

Working voltage: DC 4-6V

Signal output indication

Single channel signal output

The output effective signal is low level

This is a very small light sensor. A photocell changes resistance depending on the amount of light it is exposed to. These little sensors make great ambient light triggers (when light in the room turns on, do something).

Specifications:

• Light resistance : 10k Ohm
• Dark resistance : 20k Ohm
• Max voltage : 150V
• Max power: 100mW

Dimensions:

• 2 x 4 x 5mm
• 4mm between pins
• 31mm lead length

Description

Features: 13.56Mhz, S50, Mifare One

RC522 IC Brief Introduction

MF RC522 is used in highly integrated 13.56MHz contactless communication card chip to read and write, of NXP for “three” and the application launched a low voltage, low cost, small size, non-contact card chip to read and write, intelligent instruments and portable handheld devices developed better.