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L7805CV L7806CV L7808CV L7809CV L7812CV L7815CV L7824CV Transistor Triode


Package Include : 1pc * L7805CV/L7806CV/L7808CV/L7809CV/L7812CV/L7815CV/L7824CV Transistor


#Transistor #Triode



The DS18B20 is a 1-wire programmable Temperature sensor from maxim integrated.

It is widely used to measure temperature in hard environments like in chemical solutions, mines or soil etc.

The constriction of the sensor is rugged and also can be purchased with a waterproof option making the mounting process easy.

It can measure a wide range of temperature from -55°C to +125° with a decent accuracy of ±5°C.

Each sensor has a unique address and requires only one pin of the MCU to transfer data so it a very good choice for measuring temperature at multiple points without compromising much of your digital pins on the micro controller.


#DS18B20 #temperature #waterproof



650nm Laser sensor Module 6mm 5V 5mW Red Laser Dot Diode Copper Head KY-008


This 5V laser head is very easy to use, you can use Arduino control, make controllable laser pointer, theft detection, etc. interesting application devices.

As long as the laser can not point to itself or other eyes, even if the box is closed, the laser will have to open the possibility of error.

The laser is not a toy, does not give children, mental shortage, for people who do not know the use of laser characteristics, in this case, it can easily lead to injury.

The use of lasers must wear special glasses, for the invisible laser, this point is especially important.

The laser cannot shine on vehicles, airplanes and other transportation vehicles.

Condition: New Operating

Voltage :5V

Output wavelength 650 nm 3 pins module

With fixed bolt hole for easy installation

Color: show as pictures


1 – GND

2 – 5V

3 – S (Control: HIGH = Laser on);


Package Included: 1* KY-008 Laser Sensor Module


#KY-008 #Laser #Sensor #Module



This is a companion module that plugs into our solderless breadboards (MB-102 Breadboard) and provides 5V and/or 3V power to the rails as well as other useful functions, an on-off switch, power indicator LED, a USB port and extra header pins for 3V and 5V power taps. Maximum output current: 700mA. Coax jack (2.1mm id) for power input (6.5V -9V). Power supply not included. 32 x 54 x 25mm high (1.26 x 2.08 x 0.86" high).



Input Voltage: 6.5V-12V (DC) or USB power supply

2.1mm DC barrel connector

Suitable for use with MB102 style Breadboard

Output Voltage: 3.3V, 5V, switchable

On-board, two sets of 3.3V and 5V DC output pins

Maximum Output Current: <700ma + ON/Off Switch

Size:5.3cm x 3.5cm

Package includes:  1x Breadboard Power Supply DC 5V & 3.3V For Arduino


#Arduino #5V #3.3V #MB102 #MB-102 #Breadboard #Power #Supply #Adapter #Shield #Module



This is a microwave radar motion sensor module which is used to detect motion and object in 360 degrees with no blind spot.

#RCWL-0516 #microwave #radar #sensor #module #Human body #induction #switch module #Intelligent #sensor


Specifications :

This is mini solderless prototype breadboard 170 points for Arduino shield.

Size : 4.6cm * 3.5cm * 1cm

Weight : 14g

Holes : 170 Holes size suitable for [Male to male Jumper Wire]

Material: ABS

Package includes: 1x SYB-170 Linkable Mini Breadboard 170 Holes


#SYB-170 #Linkable #Mini #Breadboard #170 #Holes



The Infrared Barrier Module is able to adapt to the environment light very well. Having a pair of infrared transmitter and receiver tube, the transmitter consistently emits a certain frequency. When an obstacle with reflective surface is encountered, the infrared reflected back is received by the receiver & sent to the comparator circuit for processing. The green light will lit and output digital signal (low). The detection range can be adjusted via the potentiometer knob.


#Outdoor #obstacleavoidancesensor #Cars #Robot #smartphonecarmount #modular #lm393 #infraredobstacleavoidance #Sensors



New DS3231 AT24C32 IIC Module Precision RTC Module for Arduino.

Extremely accurate I2C real-time clock (RTC).

With integrated temperature-compensated crystal oscillator (TCXO) and crystal.  

Integrated oscillator improve long-term accuracy of the device.

Clock chip: High-precision clock chip DS3231.

Memory chips: AT24C32 (storage capacity 32K)  

Operating voltage: 3.3 - 5.5V DC 

Real time clock generator seconds, minutes, hours, day, date, month and year timing


Pin connection for arduino Uno & Nano :





Download library for DS3231:


Time library for Arduino:



Put the folder in arduino > "libraries\". or

Sketch > include library > Add .Zip library


#ds3231 #at24c32 #rtc


Product parameters:

Voltage tolerance: ±1%

Eight sections of electricity: 10% 25% 40% 50% 60% 75% 90%

full Working current: 5-15mA

Refresh rate: about 300mS once

Display mode: three digit 0.56" LED digital tube

Display color: blue

Refresh speed: about 300mS/time

Measurement accuracy: 1% (2 characters)

Working humidity: 10-80% (no condensation)

Lead length: 15cm

Dimensions: 48mm*29mm*22mm

Hole size: 46×27mm

Working temperature: -10℃-65℃


feature of product:

1. Double display power + voltage at a glance. The display is more intuitive. Upstream 8-color bar displays battery power and downstream voltage Meter (display battery voltage) The decimal point automatic displacement accuracy of the voltmeter is higher.

2. Wider range of use, 18650 lithium battery polymer lithium battery pack, lead-acid battery, electric vehicle battery, nickel metal hydride battery and other types of electric equipment can be used.


This electricity meter is suitable for 12V, 24V, 36V, 48V, 60V battery cars.

It can also measure lithium batteries, polymer batteries, nickel-metal hydride batteries. Can also be used for other power/electricity Pressure measurement use.

Not suitable for: Large trucks, cranes, forklifts and other high-power and high-load vehicles!


Feature of product:

1. Dual display power + voltage, the display is more intuitive. Upstream 8 grid color bars display (2 red 6 green) Pool power. Downstream voltmeter (display battery voltage), the decimal point of the voltmeter is automatically shifted Degree is higher.

2. Wide range of use, lithium battery packs, lead-acid batteries, car batteries, electric vehicle batteries, etc. All types of batteries and electric equipment can be used. Existing voltage calculation and electric vehicle power display The table principle is the same.

3. The meter automatically recognizes the voltage and power, and the reverse connection protection function (reverse connection will not burn out).


#Electric #Vehicle #Battery #Power #Display #Lithium #Voltage


L298N Dual H Bridge Motor Driver.

Motor controller breakout board which is typically used for controlling speed and direction of motors.

Dual-channel H-bridge driver working mode creates higher working efficiency.

L298N as main chip

It has strong driver capability, after flow protection diode, more stable and reliable


#l298n #motordriver #arduinol298n #motor #driver #l293d #dcmotor



100% brand new!

Color: Black

Rating: 2A 125VAC

Operating Temperature: -25 Celsius to +65 Celsius

Contact Resistance: less than equal 30MOhm

Insulation Resistance: greater than equal 100MW

Withstand Voltage: AC 300V/min

Life: greater than equal 10000

Dimensions: 12.6 x 5.7 x 6.5mm

Pitch: 6.5mm

SPDT contacts

PCB solder terminals

Quantity: 1pcs

Package included: 1 * Mini-Switch


#Micro #Switch #KW11-3Z-2 #Contact #Switch



High Quality MQ-2

Smoke Gas LPG Butane Hydrogen Sensor Module for Arduino

MQ2 Smoke Gas Detector Module for Arduino



Operating Voltage is +5V

Can be used to Measure or detect LPG, Alcohol, Propane, Hydrogen, CO and even methane

Analog output voltage: 0V to 5V

Digital Output Voltage: 0V or 5V (TTL Logic) Can be used as a Digital or analog sensor

The Sensitivity of Digital pin can be varied using the potentiometer

MQ-2 Gas Sensor

Sensitive for LPG, propane, hydrogen, Combustible Gas, Smoke

Output voltage boosts along with the concentration of the measured gases increases

Fast response and recovery

Features boost circuit


Package Included: 1* MQ2 Smoke Gas Seonsor Module

#MQ-2 #Smoke #Gas #LPG #Hydrogen #Sensor #Detector #Module #MQ2 #Arduino


The power inverter is ultra compact and portable and represents the new trend of high frequency converters. Whether it is connected with the cars or other 12V power supply, it can provide safe and reliable AC voltage for electrical appliances such as TV, DVD machines, etc. It comes with a variety of protection functions, protecting your converter, battery and electrical appliances effectively in overload state.



100% Brand New and High quality

Can be used with laptops, mobile phones, cameras, car TVs, DVD players etc.

Small and light, easy to carry

Built-in fuse, safe and reliable

Offers you overload, short circuit and overheated protection

High efficiency converting and quick start



Shell Material: Aluminium Alloy

DC Input Voltage:12V/24V

AC Output Voltage:220V

Power Rating:150W

AC Output Frequency: 50Hz

USB Output: DC 5V

Low Voltage Protection: 9.5V-10.5V/19.5V-20.5V

Overvoltage Protection: 14.5V-15.5V/29.5V-30.5V

Environment Temperature: -5-50

Connection: Cigarette Lighter

Net Weight: 330g

Size: 82.4*89*47mm(L*W*H)

Package Includes: 1* Car Power Inverter


#Car Inverter#car#150w#High Quality #150W Car Inverter# Charger #12V to 220V #Car Power Converter #With USB Charger Port #Safety #adapter #inverter



One Of Most popular 9g metal servo in the world.

This small and lightweight servo comes with high output power, thus ideal for RC Airplane, Quadcopter or Robotic Arms.

High resolution.

Accurate positioning.

Fast control response.

Constant torque throughout the servo travel range.

Excellent holding power.



Weight: 13.4g

Dimension: 22.8×12.2×28.5mm

Stall torque: 1.8kg/cm (4.8V); 2.2kg/cm (6.6V)

Operating speed: 0.10sec/60degree (4.8V); 0.08sec/60degree (6.0V)

Operating voltage: 4.8V (~5)

Servo arms & screws included

CE & RoHS approved.

It is stronger and lighter than copper.

Power wire : typically red, and should be connected to the 5V pin.

Ground wire : typically black or brown.

Signal pin : typically yellow, orange or white


Steering system in RC toys


Humanoid robots


Package Included :

1 x Tower Pro MG-90S Analog Metal Gear Servo

1 x Set of Servo Arm


#MG90S #Metal #gear #Digital 9g #Servo For Rc #Helicopter #Plane #Boat #Car MG90 9G



It has good sensitivity to carbon monoxide in wide range, and has advantages such as long lifespan, low cost and simple drive circuit.

High sensitivity to carbon monoxide  

Stable and long life



Domestic gas leakage detector

Industrial CO detector

Portable gas detector


Package included:  1set x MQ-7


#MQ-7 #MQ7 #Carbon #Monoxide #CO #Gas #Sensor #Detection #Module #gas #detection #alarm #sensor #module