Modules

The KY-024 Linear Magnetic Hall Effect Sensor Module and a digital interface, built-in 13 LED build a simple circuit to produce a magnetic field warning lamp comes with digital interfaces of the LED, the linear Hall sensor magnetometer access number 3 interface, when linear Hall magnetometer Sensor senses a key signal, LED lights, otherwise off.

Hall switch integrated circuit using hall effect principle, Uses the semiconductor integrated technology manufacturing magnetic susceptibility of the circuit, it is by the voltage regulator, hall voltage generator, differential amplifier, Schmitt triggers, temperature compensation, and the open collector output stage circuit composed of magnetic sensitive sensor circuit, its input for the magnetic induction intensity, the output is a digital voltage signal.

A magnetic field is detected by the sensor and will be printed as an analog voltage value. You can control the sensitivity of the sensor with the potentiometer.

The KY-013 Analog Temperature Sensor Module is based on the thermistor (resistance increases with the ambient temperature changes) which sense the real-time temperature of the surrounding environment changes. Change in temperature data in analog form can be taken from this module on analog IO pins, then through any microcontroller, it can be easily converted and displayed in Celsius degrees or any other respective Unit.

HB100 Miniature Microwave Motion Sensor is an X-Band Bi-Static Doppler transceiver module. It has a built-in Dielectric Resonator Oscillator (DRO) and a pair of Microstrip patch antenna array,making it ideal for usage in motion detection equipment.
This module is ideal for alarms, motion detectors, lighting control, vehicle speed measurement, and automatic doors.

Doppler Principle

Doppler theory based on time. when radio waves encounter an object in the moving process will be reflected when the waves. the frequency of the reflected wave will hit the object with the movement to change state. If the radio waves encounter an object position is fixed. then the reflected wave frequency and transmitting frequency waves should be equal. If the object moves toward the launch. then the reflected waves will be compressed. that will increase the frequency of the reflected wave; otherwise, the reflected waves frequency decreases.

The GY-273 module is based on the Honeywell HMC5883LIC for low-field magnetic sensing with a digital interface for applications such as lowcost compassing and magnetometry. The HMC5883L includes state-of-threat, high-resolution HMC118X series magneto-resistive sensors plus an ASIC containing amplification; automatic degaussing strap drivers, offset cancellation, and a 12-bit ADC that enables 1 to 2 compass heading accuracy. The I2C serial bus allows for an easy interface.
TheHMC5883Lutilizes Honeywell’s Anisotropic Magnetoresistive (AMR) technology that provides advantages over other magnetic sensor technologies. These anisotropic, directional sensors feature precision in-axis sensitivity and linearity.

These sensors solid-state construction with very low cross-axis sensitivity is designed to measure both the direction and the magnitude of Earths magnetic fields, from milli-gauss to 8 gausses. Honeywells Magnetic Sensors are among the most sensitive and reliable low-field sensors in the industry.

Digital Display for HC-SR04 Ultrasonic Distance Measurement Control Board adopts 8 bit MCU as the main control chip; it can be applied in distance measurement, testing HC-SR04 ultrasonic module performance. And it supports serial port display and digital tube displa

BFD-1000 Five Channel Infrared Tracking Sensor Module is a sensor board designed for use with line follower robots. This module has been sufficient to meet the day-to-day task of tracking, but also with the infrared distance sensor and touch detection sensor, the board makes your robot design able to adapt to the situation easily.

BFD 1000 specifically designed as a black line (white) XunQu, especially suitable for the complex of black and white line, cross black and white line detection, it has 6 roads high sensitivity infrared sensor (5 escapes patrol, 1 road), to the recognition of black and white line accurately, it has the following functions and features:-
1. BFD 1000 integrated no.5 high sensitivity tracking sensor, for the environmental impact of small, can accurate tracking to complex black line (white line), for the simple black line tracking more comfortable.
2. BFD 1000 integrated infrared Barrie sensor, escapes distance can be regulated through the slide rheostat.
3. BFD 1000 has a specially designed touch detection sensor, from the design of the robot is more simple.
4. BFD 1000 all of the output signal to a digital signal (v), conveniently connected with MCU.
5. All sensor output state BFD 1000 have LED lights as instructions, convenient debugging.
6. BFD 1000 support voltage of 3.0-5.5 v meet the demand of most systems.
7. Using the high sensitivity of the sensor, tracking range between 0.5 mm to 40 mm any change and dont need to do any adjustment.

This is tiny and compact digital voltmeter with red LED Display. 0.28inch 3.5-30V Two Wire DC Voltmeter Red Panel requires only a few minutes of configuration and is as simple as directly connecting wires to the source you want to measure and seeing the LED blink!!!!

The red wire is to connect to the positive pole, the black wire is to connect to the negative pole. No need to worry even if there is any connection mismatch of the wires, the electric circuit wont be a boom because it features reverse polarity protection.

This voltmeter doesn’t need external drive working power, it can work with measuring voltage, the working voltages range is 3.5-30V. To reach the best measurement accuracy, this voltmeter will automatically move the decimal points position according to the different measuring voltage. When it measures the voltage below 10V, it will display two places after the decimal point. When it measures the voltage above 10V, it will display one place after the decimal point.

This voltmeter can be used to measure the storage battery’s voltage in motorcycles and cars and also can grasp the storage batterys status. It also can be used to measure other voltage. 30V is the voltmeters maximum operating limited voltage, please leave enough margin when working, to avoid voltmeters permanent damage because of an electrical spark, power supply ripple, or other too high abrupt change of voltage.

Very bight and decent LED Display is ready to measure the dc voltages in the range of 3.5V to 30V.

his is tiny and compact digital voltmeter with blue LED Display. The DC 3.5-30V 2 Wire Blue LED Display Digital Voltage Voltmeter Panel requires only a few minutes of configuration and is as simple as directly connecting wires to the source you want to measure and seeing the LED blink!!!!

The red wire is to connect to the positive pole, the black wire is to connect to the negative pole. No need to worry even if there is any connection mismatch of the wires, the electric circuit wont be a boom because it features reverse polarity protection.

This voltmeter doesn’t need external drive working power, it can work with measuring voltage, the working voltages range is 3.5-30V. To reach the best measurement accuracy, this voltmeter will automatically move the decimal points position according to the different measuring voltage. When it measures the voltage below 10V, it will display two places after the decimal point. When it measures the voltage above 10V, it will display one place after the decimal point.

This voltmeter can be used to measure the storage battery’s voltage in motorcycles and cars and also can grasp the storage battery’s status. It also can be used to measure other voltage. 30V is the voltmeters maximum operating limited voltage, please leave enough margin when working, to avoid voltmeters permanent damage because of an electrical spark, power supply ripple, or other too high abrupt change of voltage.

Very bight and decent LED Display is ready to measure the dc voltages in the range of 3.5V to 30V.