DIY Parts & Components

This mini 2-piece RS232 to TTL level conversion board, featuring the MAX3232CSE chip, helps bridge communication between devices using different voltage standards. In practical scenarios, it's often used in electronics projects to connect RS232 serial ports from older equipment to TTL-compatible microcontrollers, like those in Arduino setups or industrial monitoring systems, ensuring reliable data transfer without signal conflicts. Utilizes MAX3232CSE chip for stable conversion Operates on a 3V to 5V voltage range for broad compatibility Supports baud rates up to 120 KBPS for everyday serial communication needs Compact two-piece design for easy integration into tight spaces Includes essential components for straightforward setup Ideal for reducing signal voltage mismatches in DIY electronics Light specifications: Dimensions are not specified, but the board's mini size suits portable applications. This solution fits users in hobbyist electronics, prototyping, or maintenance roles seeking a dependable interface for serial devices.

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The DTMF Audio Decoder Module serves as a practical component for electronics enthusiasts working on signal processing projects. In scenarios like building remote control systems or integrating with phone-based interfaces, this module decodes dual-tone multi-frequency signals from audio inputs, helping to trigger actions in devices such as alarms or robotic controls. Features the MT8870 decoder chip for reliable frequency detection Includes a voice input interface for easy audio signal connection Equipped with five LED indicators to visually monitor output states Exposes basic chip pins for straightforward integration and customization Compatible with popular platforms like Arduino, Raspberry Pi, and ARM MCUs This module fits well in educational or DIY settings, offering a simple way to handle audio signals in projects without requiring advanced expertise.

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The Wireless Module Socket Adapter Board is designed for connecting NRF24L01+ wireless modules to microcontroller systems, addressing common voltage compatibility issues in DIY electronics. In microcontroller projects, this adapter simplifies integration by handling voltage differences, allowing seamless communication between a 5V system like the 51 single-chip and the 3.3V wireless module, which is useful for building wireless sensor networks or remote control setups. Material: High-quality PCB for reliable performance On-board AMS1117-3.3 chip for stable 3.3V regulation Supports both 3.3V and 5V operations for versatile use Specifically compatible with NRF24L01+ modules for straightforward setup Compact design that fits easily into prototype boards Facilitates secure pin connections to prevent signal loss Light specifications include a standard PCB size suitable for breadboard or custom enclosures. This board fits well for hobbyists and students exploring wireless communication in embedded systems.

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The Colorful Quick Line Wire Terminal offers a practical solution for secure electrical connections in various wiring projects. Made from durable PA nylon and stainless steel, it's designed for reliable performance in everyday applications. In home wiring or DIY electronics, this terminal simplifies connecting wires by allowing direct insertion of both multi-strand flexible and single-strand hard wires, reducing installation time and effort while ensuring a tight, stable connection. Constructed with PA nylon shell for flame retardant insulation and high temperature resistance up to rated limits. Supports wiring from 0.4 to 6 square millimeters, compatible with common flexible and hard wires for versatile use. Features electrolytic copper nickel-plated tin contacts for enhanced conductivity and corrosion resistance. Available in configurations like two-in/two-out or three-in/six-out, with weights ranging from 3.21g to 18.3g. Rated for voltages up to 600V and currents up to 40A, depending on the model. Requires a stripping length of about 11-12mm for easy setup. This wire terminal fits well for electricians, hobbyists, or anyone needing dependable, quick connections in low to medium voltage setups.

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This multiturn precision potentiometer is designed for accurate electronic adjustments, offering reliable performance in various applications. It features a compact design that makes it straightforward to integrate into projects. In practice, it's useful for tasks like calibrating audio equipment, tuning motor controls, or adjusting voltage in DIY electronics, where precise, multiple-turn adjustments help achieve the desired settings without overshooting. Provides dielectric strength to withstand 750 V at 50 Hz AC RMS for up to one minute, ensuring safe operation in higher voltage environments Delivers a rated power of 2W, supporting consistent performance during extended use Compact and lightweight build for easy portability and installation in tight spaces Multiturn mechanism allows for fine, incremental adjustments, enhancing accuracy in precision tasks Resistant to common electrical stresses, reducing the risk of failure during operation Light specifications include a small form factor suitable for handheld devices or circuit boards. This potentiometer fits well in electronics projects for hobbyists and professionals needing dependable, adjustable components for accurate control.

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This breadboard jumper wire kit provides a versatile set of wires for electronics prototyping and testing. It includes various lengths to accommodate different project needs. Use these jumper wires to connect components on a breadboard for building circuits, such as in DIY electronics, Arduino projects, or educational experiments. They help ensure secure and accurate connections without soldering. Assorted lengths ranging from 2mm to 125mm for flexible use in tight or extended spaces Made from durable copper wire that resists wear and maintains conductivity Safe, non-toxic materials suitable for prolonged handling Compact and portable design for easy storage and transport Available in standard 2mm pitch for compatibility with most breadboards Quantities vary by length to support multiple connections in a single project These wires fit well for beginners and experienced users alike, offering practical solutions for everyday electronics tasks like prototyping sensors or testing circuits.

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The HC-SR04 ultrasonic distance sensor is a compact module designed for measuring distances in various microcontroller projects, particularly with Arduino boards. This sensor is useful for applications like obstacle detection in robotics, parking assistants, or smart home setups, where accurate distance measurement helps in creating responsive and efficient systems. Features four-pin connections: VCC, Trig, Echo, and GND for straightforward integration Provides an output signal ranging from 0V to 5V, compatible with 5VDC power supplies Detects distances from 2cm to 450cm with a precision of up to 3mm Operates by sending eight 40kHz square waves upon receiving a trigger signal of at least 10us Automatically detects returning pulses to calculate distance Easy to use with Arduino, requiring basic programming for data interpretation Light specifications include a power requirement of 5VDC and compatibility with common microcontroller platforms for hobbyists and educators building distance-measuring projects. This sensor fits well into educational, prototyping, and DIY electronics scenarios where reliable distance data is needed without complex setup.

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The reed sensor board serves as a reliable component for detecting magnetic fields, commonly used in security and monitoring setups. In a home security context, this board can detect when doors or windows open by sensing attached magnets, allowing for integration into alarm systems or automated alerts via compatible microcontrollers. Detects magnetic presence for applications like door and window monitoring, electromagnetic relays, and electronic weighing Compatible with Arduino boards, enabling straightforward programming and connectivity Constructed from durable PCB material for stable performance Features a simple design that supports easy installation and wiring Includes a reed switch for precise magnetic field detection Light specifications include a compact PCB layout, making it suitable for DIY projects or professional installations where space and reliability are key. This sensor board fits well for electronics enthusiasts or developers building custom security solutions that require accurate, low-cost magnetic detection.

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This Bluetooth wireless stereo audio amplifier supports home music playback, using the TPA3116D2 chip for reliable performance. It connects seamlessly via Bluetooth 5.0, allowing you to stream audio from devices like smartphones or tablets. For everyday use, it's suitable for setting up a simple home audio system, such as pairing with 4-ohm or 8-ohm speakers to enjoy wireless music in your living room or office, reducing cable clutter while maintaining clear sound transmission up to 15 meters. Features dual-channel stereo output for balanced left and right audio. Includes a built-in filter for smoother, clearer sound quality. Supports a wide voltage range of 5-27V, adaptable to various power sources. Offers protections against overvoltage, undervoltage, overheating, and short circuits for safe operation. Compatible with speakers from 30W to 200W, ensuring versatility for different setups. This amplifier fits well with standard home audio configurations, making it a practical choice for users seeking straightforward wireless connectivity. Note that output power depends on voltage and speaker impedance for optimal performance.

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The T Shape GPIO Expansion Board V1 offers a straightforward way to extend the capabilities of your Raspberry Pi B+. For hobbyists and makers, this board is useful in projects that require additional GPIO connections, such as building smart home devices or prototyping circuits, by providing more accessible pin layouts without the need for soldering. Specifically designed for Raspberry Pi B+ compatibility, ensuring a secure and stable fit. T-shaped layout improves access to pins, making it easier to connect wires and components. Simple plug-and-play installation for quick setup and reduced setup time. Compact design that integrates seamlessly without adding bulk to your setup. Helps expand I/O options, allowing for more devices to be connected simultaneously. Light specifications include a board size suitable for standard Raspberry Pi enclosures. This expansion board fits well for users seeking reliable GPIO extension in educational or DIY electronics projects.

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This XINYI 2.1 channel Bluetooth audio power module offers a compact solution for integrating audio capabilities into various systems. It supports multiple inputs and outputs, making it suitable for custom builds or upgrades. For DIY audio enthusiasts or hobbyists assembling home theater setups, this module provides reliable connectivity options like Bluetooth 5.0, allowing seamless streaming from devices, or wired inputs for stable playback. It helps deliver balanced sound with dedicated channels for left, right, and subwoofer outputs, enhancing audio experiences in projects like portable speakers or car audio modifications. Features 2.1 channels with 50W per left/right speaker and 100W for subwoofer, supporting 4-8 ohm loads. Includes Bluetooth 5.0, AUX, U disk, and USB sound card inputs for versatile connectivity. Encoder knob for precise volume control and protection against static, overcurrent, overheating, and short circuits. App control via Sinilink for easy adjustments. Compact size of about 9.5 x 8.8 x 2.5 cm and weighs 156g, ideal for space-limited installations. Operates on DC 5-26V power supplies, with a frequency range of 20Hz-30KHz and 92dB signal-to-noise ratio. This module fits well in electronics projects needing durable, multi-functional audio amplification, particularly for users seeking efficient, protected components for their builds.

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The Xbee Sensor Expansion Shield is a board designed for Arduino compatibility, allowing users to integrate Xbee modules for enhanced connectivity in their projects. In practical use, this shield helps in building wireless sensor networks, such as monitoring environmental data remotely with Arduino setups, making it suitable for IoT prototypes or data logging applications. Seamlessly connects Xbee wireless modules to Arduino for easy communication expansion Supports sensor integration, enabling addition of various inputs like temperature or motion sensors Features a straightforward plug-and-play design that minimizes wiring complexity Compatible with standard Arduino boards, ensuring broad usability Compact form factor that fits onto Arduino without adding bulk Facilitates reliable data transmission for projects requiring wireless capabilities This shield fits well for electronics enthusiasts and developers exploring wireless applications, offering a practical way to extend Arduino functionality.

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This compact digital amplifier provides 35W of mono audio output, using the TDA8932 chip for reliable performance in various projects. It's practical for tasks like upgrading active speakers or prototyping audio devices, where space-saving design and efficient power handling help streamline builds without extra cooling needs. Utilizes the TDA8932 chip for high-efficiency amplification Compact PCB construction, ideal for tight spaces in DIY setups Operates on a single DC voltage from 10-30V, with 24V recommended for optimal results Delivers 35W output with compatibility for 4-8 ohm speakers, performing best at 8 ohms Features mono BTL configuration for straightforward, effective audio delivery No additional radiator required, simplifying installation This amplifier fits well in audio projects for enthusiasts and developers seeking a dependable, space-efficient solution for mono applications.

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This USB ISP programmer is designed for repairing and programming chips on computer motherboards, laptops, and related devices. It connects via USB and supports a range of memory types without requiring chip removal, making it a practical tool for technicians. For users dealing with motherboard issues, such as faulty EEPROM or EDID data problems, this device allows for quick reading and writing of chips directly on the board. It's useful for diagnosing and fixing errors in computers, LCDs, and routers, helping to restore functionality efficiently. Reads and writes 8-pin and 16-pin chips commonly found on motherboards and laptops. Automatically identifies chip models for EEPROM, SPI FLASH, and MicroWire memories up to 256Mbit. Supports online programming of specific chips like RTD2120 with double bank access. Handles DDC-EDID data for displays and laptop screens, aiding in screen compatibility fixes. Compatible with Windows systems including XP, 7, 8, and various server editions. Operates at 5V, with multilingual software in English, Russian, Arabic, and Persian. Ideal for electronics repair professionals working on computer hardware, this programmer offers reliable chip access to address common issues without disassembly.

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This Bluetooth stereo amplifier is designed for enhancing home audio systems, offering a 40W output to connect with speakers for clear sound playback. For everyday use, it's ideal for streaming music from your smartphone or tablet to home speakers, making it suitable for background music in living rooms or small gatherings without complex setups. Supports Bluetooth 5.0 for stable wireless connections up to 15 meters, reducing interference in typical home environments. Features a volume adjuster for precise control, along with protections against power reverse, short circuits, and overheating to ensure reliable operation. Operates on a DC 5-24V power supply with two input modes, accommodating various speaker setups for better efficiency. Delivers stereo sound through two channels with low distortion, using a durable PCB circuit board for consistent performance. Includes adaptive output power, such as 20W per channel at 12V and 4 ohms, to match different speaker impedances. With compact dimensions of about 5.08 x 3.8 x 1.8 cm, this amplifier fits well in space-limited areas and suits users setting up basic home audio enhancements.

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The TTGO T5 E-Ink screen development board offers a practical solution for low-power display needs in various applications. In retail settings, it can update shelf labels efficiently, conserving energy by displaying content persistently without a backlight, making it suitable for battery-powered or remote installations. Features an E-Ink display with black and white colors for clear, wide-angle viewing. Ultra-low power consumption, requiring power only during refreshes, ideal for extending device battery life. Includes development resources like Arduino-ESP32 examples for easy integration. Supports 3-wire and 4-wire SPI interfaces for flexible connectivity. Operates with a 3.3V working voltage and 2 grayscale levels for simple, effective visuals. ESP32 integration provides WiFi capabilities in AP, STA, and AP+STA modes for wireless functionality. Light specifications include an 8-second full refresh time and a compact design for embedding in other projects, fitting developers seeking reliable, energy-efficient displays for IoT and industrial uses.

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Waterproof sealed cable fixed joints provide a practical solution for securing cables in challenging environments. This 50-piece set includes various sizes to accommodate different cable needs, made from PA material for reliable performance. In scenarios like outdoor wiring, automotive repairs, or industrial setups, these joints help protect cables from water and dust ingress, ensuring better insulation and stability without the need for specialized tools. IP68-rated waterproof and dustproof protection for enhanced durability High-toughness clamping jaw offers strong tensile strength and secure fastening Thick, elastic sealing ring prevents cable damage while maintaining a tight seal Manual tightening design for straightforward, tool-free installation Good insulation properties to support safe electrical connections Variety of sizes from PG7 to PG19 for versatile applications These joints fit well in projects requiring robust cable management, such as for hobbyists or technicians working in moist or dusty conditions, with each box weighing about 485g and measuring 20.8x16.7x3.8cm for easy storage.

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The LandaTianrui WiFi-Enabled Cloud Development Board offers a straightforward way to build smart projects with cloud connectivity. In everyday use, this board lets you control features like RGB lights and monitor environmental brightness via a mobile app, making it useful for prototyping IoT devices or custom remote systems in just minutes of setup. WiFi connectivity for easy integration with cloud services and mobile devices Supports quick secondary development using the witty cloud SDK, reducing setup time Allows mobile app control of RGB lights and photosensitive resistance for brightness detection Compact design suitable for hobbyist projects, with simple hardware modifications Compatible with standard Android and iOS devices for remote access Cost-effective kit that includes essential components for immediate use This board fits well for beginners and makers in electronics and IoT, providing practical tools for learning and experimentation without overwhelming complexity.

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The Bluetooth Amplifier for Home Audio with Subwoofer Support offers versatile connectivity for enhancing your audio setup. It features Bluetooth 5.1 technology for wireless streaming up to 10 meters, along with AUX, U-disk, and USB inputs for multiple playback options. For everyday use, this amplifier suits home entertainment systems where you need to connect speakers and a subwoofer. It allows seamless integration with devices like smartphones or computers, making it ideal for streaming music, watching movies, or gaming without tangled wires. Multiple inputs including Bluetooth, AUX, U-disk, and USB for flexible audio sources Separate volume controls for subwoofer and stereo channels for precise sound adjustment TWS function to pair two units for expanded left-right channel setup Built-in protection against over-temperature, over-current, and short circuits App support for customizing Bluetooth settings, firmware updates, and more Compatible with 4-8 ohm speakers and DC 9-24V power supply With dimensions of 75x70x20cm and lightweight design, it fits well in standard home audio environments for users seeking reliable, customizable amplification.

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This digital thermostat kit offers effective temperature control for a range of applications, featuring PID technology for steady regulation. In practical use, this kit helps maintain consistent temperatures in scenarios like home brewing, industrial processes, or DIY projects, ensuring equipment operates within desired ranges without fluctuations. PID control method for precise temperature adjustments 220V operation with SSR solid state relay output for safe, reliable switching Compact design at 48x48x110mm, fitting easily into tight spaces Optional K or PT100 input methods for versatile sensor compatibility Thermocouple with 1-meter lead and 0-400°C range for accurate readings Ambient temperature tolerance from -30°C to +70°C for durable performance Lightweight components, including a 81g solid state module, for straightforward installation These specifications make the kit a practical choice for hobbyists or professionals seeking dependable temperature management in their setups.

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This Bluetooth music player module offers an LCD screen for displaying synchronized lyrics, enhancing your audio experience with visual feedback. Use it in DIY projects, home setups, or portable systems to stream music, record calls, or listen to FM radio while on the go, providing a practical way to manage multiple media sources without needing complex equipment. LCD screen shows lyrics in sync with playback for easier following along. Bluetooth 5.0 enables wireless connectivity for calls, recording, and music streaming up to a reliable distance. Supports decoding of MP3, WMA, WAV, FLAC, and APE formats from USB drives or TF cards. Includes FM radio tuning from 87.5 to 108.0 MHz for local station access. Features external audio input and infrared remote control for hands-free operation up to 10 meters. Multi-directional buttons for intuitive control of playback, volume, and modes. With dimensions of 90 x 57 x 28 mm and a 12V power supply, it fits well in compact spaces for users seeking a versatile, no-fuss audio solution for personal or project-based needs.

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This Bluetooth MP3 decoder board offers versatile audio playback options for various projects. It connects wirelessly to devices for streaming music and handles multiple input sources with ease. For audio enthusiasts building custom systems, such as in-car entertainment or home setups, this board provides reliable playback from USB drives, TF cards, or Bluetooth devices, making it simple to switch between sources like FM radio or external audio inputs without complex wiring. Bluetooth 5.0 for stable wireless connections and call functionality Decodes MP3, WMA, WAV, FLAC, and APE formats for broad compatibility Supports FM radio tuning from 87.5MHz to 108.0MHz Includes six intuitive buttons for controls like recording, repeat, volume adjustment, and mode switching Features infrared remote control with up to 10m range for convenient operation Retains memory after power loss for seamless restarts With dimensions of 112mm x 62mm x 22mm, it fits neatly into compact spaces and requires a 12V power supply, making it a practical choice for DIY audio projects and hobbyists seeking multifunctional playback solutions.

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This thermostat kit includes a PID controller, solid state relay, and thermocouple for accurate temperature management in various applications. In a typical use case, such as controlling a home brewing system, the kit monitors and adjusts temperatures to maintain stability, helping prevent overheating or underheating for consistent results. PID control method for precise temperature regulation, reducing fluctuations in processes like fermentation or incubation. Supports K-type thermocouple input with a 1-meter lead and M6 screw for easy installation in tight spaces. 220V operation with SSR output, compatible with standard electrical setups for safe and reliable performance. Compact sizes: thermostat at 48x48x110mm and relay at 45x27x58mm, making it suitable for space-limited environments. Wide ambient temperature range from -30°C to +70°C, ensuring functionality in diverse conditions. Measuring range up to 400°C, ideal for both low and high-temperature monitoring tasks. This kit fits well for DIY enthusiasts, hobbyists, or professionals needing dependable temperature control in projects like aquariums, greenhouses, or small-scale manufacturing.

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This temperature control kit combines a thermostat, solid state relay, and K-type thermocouple to help manage temperatures accurately in various setups. In scenarios like home brewing, industrial heating, or aquarium maintenance, this kit allows users to monitor and adjust temperatures precisely, preventing overheating or underheating for consistent results. PID control method for steady temperature regulation Supports 220V input and K/EPT100 thermocouples for versatile compatibility Compact sizes: thermostat at 48x48x110mm and relay at 45x27x58mm, easing installation in tight spaces Operates in a wide ambient range from -30°C to 70°C Includes a 1-meter lead thermocouple with M6 screw for easy attachment Lightweight design, with relay at 81g and thermocouple at 16g Light specifications include a measuring range up to 400°C and control currents from 3-35mADC, making it a practical choice for projects requiring reliable thermal management.

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