EC Buying

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When purchasing a product, price is the consumer's primary concern. At present, EC Buying has 306 products for sale. EC Buying products range in price from $6.49 to $16.99, and the average price of all the products is about $11.76. It's affordable for most consumers, and you can feel free to pick your favorite products.

You can confidently purchase EC Buying products from the seller EC Buying. The brand holds an average rating of 4.85, testifying to its excellent reputation.

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Last Updated: Jan 8, 2026

EC Buying MAX7219 Dot Matrix 8 in 1 Display Module for Arduino Microcontroller - Electronic SCM Control Drive LED

LED Segment Displays

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MAX7219 is an integrated serial I/O common cathode display driver that connects a microprocessor to an 8-digit 7-segment digital LED display, or to a line graph display or 64 separate LEDs

A single module can drive an 8*8 dot matrix common cathode. An external register is used to set the segment current of each LED with 32 fixed screw holes and a diameter of 3mm

MAX7219 is a convenient four-wire serial interface that connects all common microprocessors. Each data can be addressed without rewriting all the displays when updating. MAX7219 also allows users to select encoding or no encoding for each data

The entire device contains a 150 μ A's low power off mode, analog and digital brightness control, a scan limit register that allows users to display 1-8 bits of data, and a detection mode that enables all LEDs to glow

Only 3 I/O ports are needed to drive 1 lattice; No flicker on dot matrix display; Modules with input and output interfaces support cascading

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EC Buying 3Pcs AC-14-F16A Switch Power Socket With 10A Fuse - KCD4 Integrated Three in One Adapter Connector - Copper

Car Pigtails & Sockets

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Product Name : Power Socket Switch Fuse

Material (External): Plastic, Metal; Color : Black, Red, Silver Tone

Voltage & Current : 10A, 250V AC

Total Size : 59 x 48.6 x32.5mm, Use only with a 250V fuse

Package Content : 3 x Power Socket

EC Buying 5Pcs 1 Channel 5V Relay Module with Optocoupler Isolation Supports High or Low Level Trigger 1-Way 5V Red Board Expansion Board

Solid State Relays

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This relay module uses a patch optocoupler for isolation, and each circuit can be triggered at a high or low level via a jumper

Strong driving ability, requiring only 5mA of current to drive a relay with a control ability of 10A

The interface design is user-friendly, and all interfaces can be directly connected and led out through wiring terminals, which is very convenient

Module size: 50mm * 26mm* 18.5mm (L * W * H); It is provided with 4 fixing bolt holes, holes 3.1mm, spacing 44.5mm*20.5mm

Stable performance, suitable for various microcontroller control, can be widely used in various power control occasions

EC Buying Mini Step-Down Power Supply, Intelligent Home Switching DC Power Module AC DC Isolated Power Module 220v to 5v, HLK PM01 AC DC Converter 220V to 5V（3PCS）

Power Converters

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HLK-PM01:Hi-Link latest power supply module, suitable for smart home switch control device, small volume, low current, input voltage range, is the best choice of smart home.

AC-DC isolated power module: meet UL, CE requirements, ultra-thin, ultra-small; full voltage input (90～245Vac); low ripple, low noise; product design meets EMC and safety test requirements; low power consumption, environmental protection , no-load loss

HLK-PM01: 3W ultra-small series module power supply is a small volume, high-efficiency module power supply. It has the advantages of global input voltage range, low temperature rise, low power consumption, high efficiency, high reliability, and high safety isolation. Has been widely used in smart home, automation control, communication equipment, instrumentation and other industries.

AC-DC isolated power module: has good output short-circuit and over-current protection and self-recovery, high efficiency and high power density.

Pacakge include :3pcs power module.(AC-DC Isolated Power Module)

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EC Buying XY-WJ01 Delay Relay Timer Module DC 6-30V 12V 24V 0.01s-9999min 50mA Digital Timer Period Switch AC 220V Power On-Off Controller LCD Display Button

Electrical Timers

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√ Product Specifications: Working Voltage DC 6-30V; Timing Range 0.01s-9999mins Continuously Adjustable.

√Trigger Signal Source: Support High-Level Support, Low-level Trigger, Key Trigger Control, Switch Control (Passive Switch), Suitable for Most Applications.

√Parameter Description: able to set different OP, CL, LOP parameters which are independent and saved separately; support viewing currently set parameters without affecting system operation.

√More features: support UART data upload and parameter setting; with pause button, support one-key pause; with automatic sleep mode; with input reverse connection protection; with power-off automatic storage function.

√NOTE: 1 Delay Relay Module is included, trigger cable or connector is not included and needs to be purchased separately.

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EC Buying ZK-BMG DC Motor Speed Controller, DC Motor Controller 9V-60V/12A/500W DC Encoder, PWM Control Adjustable Speed Variable Rotary Switch PWM Signal Generator Module

Motor Speed Controllers

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Product parameters: 1. Working voltage: DC9V~60V, input anti-reverse connection protection 2. Rated current: 12A, maximum current 20A 3. Maximum power: 500W 4. Operating frequency: 1KHz~99KHz adjustable, 1KHz step, default frequency 20KHz, accuracy about 1% 5. Duty cycle: 0-100%, 1% step 6. Product size: 79mm*43mm*26mm Installation hole size: 39.3mm*76.5mm 7. Product weight: 43g (bare weight), 65.5g (with packaging) 8. All settable parameters are stored when power is off.

Wiring Instructions: Motor start and stop indicator: start light on, stop light off Digital tube: display the duty cycle of motor adjustment, upper and lower limit of duty cycle and frequency Digital tube: Display the motor adjustment duty cycle, upper and lower limit of duty cycle and frequency" It can be connected to switch signal or 3.3V level signal to control the start and stop of the motor Motor output positive and negative poles Power input positive and negative

Digital encoder knob operation: In the default interface: (the default display is the duty cycle) Short press: switch the motor on and off. Press and hold for 10 seconds: enter the setting interface. Counterclockwise rotation: the duty cycle decreases. Clockwise rotation: increased duty cycle.

Setting interface: Short press: select the setting parameter, the setting parameter can be switched between ON-OFF, duty cycle lower limit, duty cycle upper limit, and operating frequency. ON-OFF is the default module power-on normally open or normally closed, the lower limit of the duty cycle is displayed in the form of "L" + two digits, and the upper limit of the duty cycle is displayed in the form of "H" + two digits or "100", the operating frequency Displayed in the form of "+two digits".

STOP port on the back: It can be connected to external switch buttons or a 3.3V level. Do not use it in complex electromagnetic environments, and there is no relevant protection inside the circuit. (Note that the external switch should use a self-reset button or key, press it once to turn it on, and press it again to turn it off; it cannot realize the function of always closing the output to open, and not closing the output to close).

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EC Buying LM2596 Multi-Channel Switching Power Supply Module 3.3V/5V/12V/ADJ Adjustable Voltage Output Buck Converter DC-DC Step-Down Power Supply

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LM2596 is a switching voltage regulator for buck power management single-chip integrated circuits, capable of outputting a driving current of 3A while possessing excellent linearity and load regulation characteristics

This module integrates four LM2596 and can simultaneously output four sets of power supplies: 3.3V, 5V, 12V, and ADJ

The module strictly follows the design specifications of the power circuit for layout and wiring

The chip Aluminium electrolytic capacitor and high Q value high-power inductance are used to ensure the stability of the output voltage, and the opening on the back of the PCB board is more conducive to the heat dissipation of the LM2596 chip

Suitable for power requirements in student learning competitions and company or individual project development

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EC Buying Function Signal Generator, ZK-PP2K PWM Pulse Frequency Generator, 1Hz-150KHz PWM Motor Speed Regulation/LCD Pulse Frequency Cycle Module Adjustable Driver Module/PWM Signal Generator

Function Generators

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ZK-PP2K PWM/pulse signal generator product introduction: This series of products are PWM and pulse signal generators. There are PWM mode and pulse mode. Only one mode can be used at a time, but the two modes can be switched at any time.

Product Specifications: 1.Working voltage:3.3~30V (note that the positive and negative poles should not be reversed, otherwise it may burn) 2.Frequency range:1Hz~150KHz, the accuracy is about 2%. Motor speed regulation generally chooses 20KHZ 3.Duty cycle range:0-100%,1% step 4.Number of pulses:1-9999, or infinite (display '---' means infinite) 5.Delay output time:0.000s-9999s, the minimum can be set to 1ms 6.Positive and negative pulse width length:0.000s-9999s, the minimum can be set to 1ms

Product Highlights: 1. It can directly drive loads such as LEDs, motors, solenoid valves, etc. 2. Two modes can be selected: PWM mode - one frequency (continuous), duty cycle. Note that switching times cannot be set in this mode, always, cyclically on and off; PULSE pulse mode 1 - positive pulse width time, negative pulse width time, power-on delay start time, and switching times are adjustable. 3. With the start and stop button, 4. Wide voltage input 3.3-30V,5.08mm terminal wiring

Key operation instructions: 1. MOS switch type output, pay attention to no waveform, can directly drive the motor solenoid valve, etc. 2. When the number of switches reaches the set value, the output will be automatically stopped, and 'OUT' will disappear. 3. Press the ON key to control the presence or absence of the switch, and the disappearance of OUT means the output is turned off. 4. Power on and restart or ON key to turn on the output, and recalculate the switching times.

Application scenarios: 1. PWM signal generator, square wave rectangular wave signal generator. 2. Used to generate square wave and rectangular wave signal to control DC motor or stepper motor driver; used for servo motor, stepper motor, substitute PLC pulse, etc. 3. ZK-PP2K can be matched with the driver to realize dimming, speed regulation, control solenoid valve, etc. ZK-PP2K can directly drive loads such as electric light motor solenoid valve.

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EC Buying 2Pcs ZK-MG PWM Motor Driver DC 5V 12V 24V Motor Speed Controller Adjustable Speed Regulator Digital Encoder Duty Cycle Frequency Housing with Stepless Variable Rotary Switch Signal Generator

Electrical Motor Controls

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Versatile Speed Control: Our PWM Motor Driver offers unparalleled versatility in motor speed regulation. With a digital encoder and an adjustable rotary switch, users can seamlessly dial in the desired speed, from slow to fast, with pinpoint accuracy. The high-resolution control ensures consistent performance across various applications.

Soft Start Function: Featuring a soft start capability, our motor driver ensures a smooth and gentle acceleration of the motor, minimizing start-up surge currents. This not only protects the motor from potential damage but also extends its operational lifespan, making it a cost-effective solution for long-term use.

Durable and Reliable: Built with input anti-reverse connection protection and rated for up to 15A of maximum current, our PWM Motor Driver is designed for durability and reliability. It can handle heavy loads and demanding applications with ease, ensuring stable performance and long-lasting value.

Flexible Working Voltage: Compatible with a wide range of working voltages from DC5V to 30V, our motor driver offers unparalleled flexibility. This allows it to be used with a variety of motors and systems, making it a versatile solution for numerous applications.

Easy to Use and Configure: With a user-friendly interface and intuitive controls, our PWM Motor Driver is easy to set up and configure. The digital encoder knob allows for quick and precise speed adjustments, while the start/stop button offers convenient on/off functionality. Parameter power-off saving ensures that your settings are retained even after power loss.

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EC Buying 5Pcs INMP441 Omnidirectional Microphone Module MEMS I2S Interface Supports ESP32 High Precision Low Power Digital Output

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INMP441 is a high-performance, low-power, digital output, omnidirectional MEMS microphone with a bottom port

The INMP441 module includes MEMS sensors, signal composition adjustment, analog-to-digital converters, anti-aliasing filters, power management, and an industry-standard 24-bit I2S interface

The I2S interface allows INMP441 to be directly connected to digital processors, such as DSPs and microcontrollers, without the need for audio codecs used in the system

The INMP441 has a high signal-to-noise ratio of 61dBA, making it an excellent choice for near-field applications

INMP441 has a flat broadband frequency response, resulting in high sound clarity

EC Buying 5Pcs SW-420 Vibration Sensor Module Vibration Switch Alarm Sensor Module for Arduino

Vibration Sensors

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Output format: Digital switching output (0 and 1)

Working voltage 3.3V-5V

With a wide voltage LM393 comparator

EC Buying 2Pcs E01-ML01DP5 Wireless Transmission Module nRF24L01P+PA+LNA 2.4G Wireless Transceiver Module 20dBm 100mW 2000m Measured Distance SPI Interface with Antenna

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E01-ML01DP5 is a 2.4G wireless module that is a commonly used nRF24L01+PA+LNA RF module with an SPI interface, suitable for various application scenarios

Under ideal conditions, the communication distance can reach 25km; Professional RF shielding cover, anti-interference and anti-static

125 communication channels to meet the application requirements of multi-point communication, grouping, frequency hopping, etc; Connect to MCU through SPI interface, with a speed of 0-10Mbps

Supports 2.0-3.6V power supply, with power supply greater than 3.3V ensuring optimal performance; Supports 2Mbps, 1Mbps, and 250kbps air rates; Maximum transmission power 100mW

Reserve 4 fixing holes for module welding and fixation; SMA-K external thread inner hole, convenient for connecting coaxial cables or external antennas

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EC Buying LD2410C Sensor Module HLK-LD2410 Human Presence Radar Sensor Module LD2410 Millimeter Wave Radar Sensor Module Non Contact 24GHz ISM Band Serial Port IO Level Output

Car Radar Detectors

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LD2410C is a high sensitivity 24GHz human presence state sensing module. Its working principle is to use FMCW FM continuous wave to detect human targets in the set space

The module combines radar signal processing and accurate human body sensing algorithm to realize high sensitivity human body presence state sensing, and can calculate the target distance and other auxiliary information

In addition to being sensitive to the moving human body, this product can be sensitive to the static, inching, and sitting and lying human body that cannot be recognized by the traditional scheme

The product can output the detection results in real time and quickly, with the maximum sensing distance of 5 meters and the distance resolution of 0.75 m

Support GPIO and UART output, plug and play, flexible application to different intelligent scenarios and terminal products

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EC Buying 3Pcs LJ12A3-4-Z/BX Inductive Proximity Switch Sensor Module 3D Printer Inductive Proximity Sensor Detection NPN NO DC6-36V 4mm Normally Open

Proximity Sensors Inductive Proximity Sensors

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Enhance your 3D printer's accuracy with the LJ12A3-4-Z/BX inductive proximity sensor, offering reliable metal detection within a 4mm range and equipped with robust NPN NO DC6-36V output, perfect for seamless integration

Built to withstand challenging conditions, the inductive proximity switch LJ12A3-4-Z features IP67-rated protection and operates flawlessly between -30°C and +70°C, ensuring consistent performance in any industrial setting

Experience minimal downtime with the Sensor Module 3D Printer Inductive Proximity Sensor Detection, designed with surge and short-circuit protection, ensuring long-term reliability and less maintenance

Achieve precise and stable detection with the inductive sensors, which include advanced features like less than 10% lag distance and minimal temperature effect, ensuring high accuracy in metal detection

Streamline your operations with the inductive proximity switches, which boast a quick installation design and a handy LED indicator, making it easier to monitor the sensor status in real-time during any project

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EC Buying 2Pcs 2.54mm Single Row 6Pin Test Clip Board Module Program Burning Clip Board 6 Pins Programmer Burning Clip PCB Burning Fixture with Dupont Wire

Test Probes & Leads

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Securely grip PCBs during testing and programming tasks with the 2.54mm spacing single-row 6-pin test clip, ensuring hands-free convenience and easy maintenance

Maximize efficiency with this compact PCB burning clip that can hold circuit boards up to 7mm thick, providing a stable and secure platform for your testing and programming needs

Experience seamless connectivity with the included 30cm Dupont wire, allowing for hassle-free jumper wire connections and enhancing the functionality of your testing and programming setup

Say goodbye to bulky clamps and messy wires by utilizing this user-friendly test clip, designed to securely hold PCBs without any looseness, making it an essential tool for electronics enthusiasts

Enhance your testing and programming tasks with this durable and reliable PCB burning fixture, perfect for any electronics assistant in need of a handy and efficient tool for their projects

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EC Buying 24GHz LD2450 Radar Sensor Module 5V Human Movement Trajectory Tracking Radar Induction Distance Angle Speed Measurement

Car Radar Detectors

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The LD2450 human body sensing module adopts 24GHz millimeter wave radar sensor technology, which is sensitive to moving human bodies and micro moving human bodies that cannot be recognized by traditional methods;

Has good environmental adaptability, and the sensing effect is not affected by the surrounding environment such as temperature, brightness, humidity, and light fluctuations;

Has good shell penetration, can be hidden inside the shell to work, without the need for holes on the surface of the product, improving the product's aesthetics

The LD2450 moving target tracking sensor can accurately locate and track targets, and is widely used in various AloT scenarios

Application scenarios: smart home, smart commerce, bathroom, smart lighting, etc

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EC Buying 2Pcs 2.54mm Single Row 5Pin Test Clip Module Board Program Burning Clip 5 Pin PCB Burning Fixture Programmer Burning Clip with Dupont Wire

Test Probes & Leads

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Securely hold your PCB in place with our 5-pin test clip, designed for 2.54mm header pins. Easily connect to breadboard jumper wires for efficient testing and programming without the hassle of loose connections

Maximize convenience with our compact PCB test clip, allowing for a maximum clamping capacity of 7mm. Effortlessly program your PCB using the included 30cm DuPont wire, providing a seamless testing experience

Replaceable probes make maintenance a breeze, ensuring long-lasting durability for your testing needs. The 2.54mm spacing on our test clip is compatible with various testing wire clip options, enhancing versatility in your projects

Free up your hands during testing and programming tasks with our reliable PCB test clip. Enjoy the ease of securely gripping your circuit board without any movement, streamlining your workflow and improving efficiency

Enhance your testing and programming capabilities with our versatile 5-pin test clip. Effortlessly connect to your PCB using breadboard wires and test leads, allowing for seamless integration into your programming setup

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EC Buying 10PCS IR Infrared Sensor Module Slotted Optical Optocoupler Speed Measuring Sensor Module Photo Interrupter Sensor Motor Speed Detection Robot for Arduino

Photocell Sensors

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Adopting a slot type photoelectric sensor, it consists of an infrared light-emitting diode and an NPN photoelectric transistor, with a slot width of 5.9mm.

As long as a non-transparent object passes through the slot, it can trigger to output a low TTL level.

Using Schmidt trigger to jitter pulses is very stable and can be used for small car speed measurement, distance measurement, and other applications!

Install holes with M3 screws at both ends.

Working voltage: 3.3V-5V, output form: digital switch output (0 and 1)

EC Buying 5PCS LD1020 Microwave Radar Sensor Module 10GHz Radar Induction Micro Motion Intelligent Perception Sensor 3.3V 8M

Motion Detectors

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Design a low-power micro/motion sensing module based on X-band radar chips, with a center frequency of 10.525GHz

The design adopts fixed frequency, directional transmission and reception antennas (1T1R), integrating functions such as intermediate frequency demodulation, signal amplification, and digital processing

It has the ability to set delay, facilitate independent parameter adjustment, and has advantages such as no wall penetration, anti-interference, small size, good clutter and high harmonic suppression effect, high stability, and consistency

The chip integrates algorithms internally, directly outputting detection results without the need for an external microcontroller. In the module pulse power supply mode, the power consumption is at the microampere level, mainly targeting low-cost and low-power applications

Embedded installation, not affected by temperature and humidity, oil fume, water mist, etc., can be applied to various lamps, such as bulb lamps, down lamps, ceiling lamps, etc. Low power application scenarios, such as visual door bells, cat eyes, door locks, low-power cameras, etc

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EC Buying 2Pcs 0.54" HT16K33 4 Bit Meter Digital Tube Module Emerald Green Color 0.54 inch LED Display Module I2C IIC for Arduino

Single Board Computers Raspberry Pi Starter Kits

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This product is a 4-digit green color digital tube module

It is controlled by I2C. Only 2 IO ports can control the 4-digit nixie tube, which greatly saves the number of IO ports. The control chip is HT16K33 , Strong compatibility, compatible with most microcontrollers.

Working voltage: 5V (3.3V is relatively dark)

IIC address: default address 0X70

Digital tube size: 0.54 inch

EC Buying FAQs

Is EC Buying Legit?

Yes, EC Buying is a legitmate brand on Amazon. After conducting a comprehensive analysis of 139 customer reviews for EC Buying products on Amazon, we have determined its average rating. With a strong performance and good quality, EC Buying has received an average rating of 4.85 from numerous buyers, indicating that EC Buying are trustworthy and live up to their claims. Therefore, it is safe to make purchases from EC Buying on Amazon.

Amazon has strict policies and safety measures in place that ensure only legitimate sellers and products are allowed on their platform. It also provides a secure payment gateway and offers buyer protection, ensuring your transaction is safe. In the unlikely event that there's an issue with your purchase, Amazon's customer service and return policies are designed to protect your interests.

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