TCRT 5000 is a highly sensitive IR reflective Sensor that has an IR lED and a Phototransistor in a common package. It is an ideal module for projects like Robotics, Position sensing, Detection of Reflective materials etc. Its range is 2-10 mm and best response range is 3 mm. Continue reading →
MOC 3041 is the Optoisolated Triac Driver that can be used to isolate AC portion of the circuit from DC operated circuit board. It helps to prevents the damage of DC circuit when there is an accidental leakage of AC in Triac controlled lamp driver circuits. Continue reading →
LM 1117 is the tiny Fixed Voltage Regulator that drops 5 Volt DC to fixed 3.3 V DC. It can output maximum 800 mA. Like 78XX series Voltage regulators, LM1117 is also a three pin device with In, Out and Ground pins. Ideal Voltage regulator for Microcontroller and Arduino Projects that needs fixed 3.3 volts. Continue reading →
TP 4056 is a Constant voltage – Constant current Chip used for charging a single 3.6 V Lithium Ion battery from 5 volt power source including USB port. It sources constant 4.6 volts for charging. An external Programming resistor can be used to provide constant current for charging. The Chip can handle up to 1 Ampere current. It has internal protection circuitry for polarity reversal, so external diode is not necessary.
An Ultra sensitive Vibration SensorSW 18020 Pis now available from the Gaoxin. It can be used in different ways to sense mechanical vibrations to activate alarms and other surveillance systems and a variety of vibration detection projects.
The Vibration sensor has two electrical contacts which are not connected in idle condition. When an external force is applied due to movement or vibration , the Sensor’s contacts close. When the force is removed, the sensor terminal returns back to open contacts. The internal spring closes the contacts during vibration which triggers the circuit connected to it. Continue reading →
LPG Sensor modules are available now at low cost and we can use it in the Kitchen as a Gas leakage Alarm. The Module has a MQ6 Gas sensor, an Op-Amp as comparator and a preset for adjusting the sensitivity. All we need is a load resistor at the output to connect with the alarm circuit. Module is very sensitive to LPG (Liquefied Petroleum Gas) which contains Propane and Butane. The MQ6 sensor detects the gas concentration between 200 to 10,000 ppm. Continue reading →
PIR Sensor Module is one of the new introductions in electronics which is a highly useful device to switch on lights when it detects a human movement. It turns on the lights from 30 seconds to 3 minutes depending on the preset adjustments. Its range can be as high as ten meters which can also be adjusted. The module gives a high output when it detects the human movement. This high output can be used to drive a relay through a switching transistor. Let us see the details of PIR sensor module. Continue reading →