Electronic Tools, Parts & Components

This 3.5-inch touchscreen display serves as a compact alternative to HDMI monitors for Raspberry Pi users, offering a direct interface for system monitoring and interaction. In practical use, it's helpful for developers and hobbyists working on portable projects, such as building a custom dashboard for home automation or field data logging, where a lightweight screen simplifies viewing and controlling Raspberry Pi outputs without needing external peripherals. Features a 320x480 pixel TFT LCD with LED backlight for clear visuals in various lighting conditions. Includes an XPT2046 touch controller for responsive, accurate input via SPI interface at up to 32MHz speed. Compatible with Raspbian systems, supporting automatic driver installation for seamless setup. Allows video playback, photo capture with multiple camera modes, and software keyboard for keyboard/mouse-free operation. Operates on Linux Core vision 3.18.9, ensuring reliable performance with Raspberry Pi's official UI. Color depth of 65,536 levels for vibrant display of graphics and interfaces. This display fits well in scenarios requiring a space-efficient, touch-enabled screen for Raspberry Pi-based applications, making it suitable for educational projects or prototyping where portability is key.

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The GSM SMS Alarm Module provides a reliable solution for sending custom security notifications via SMS or calls when triggered by a switch signal. In practical scenarios, this module suits applications like home security systems or industrial monitoring, where it detects events—such as a door opening or power loss—and alerts preset contacts with user-defined messages, ensuring timely awareness without constant oversight. Triggers an SMS or call when the input port connects to ground, allowing for personalized alarm content. Easily integrates into other devices for seamless remote alarm functionality. Includes a built-in rechargeable lithium battery for backup power, sending alerts even during main power outages. Supports customizable messages for both alarm events and when conditions return to normal. Operates on a DC 5V-15V power supply for versatile compatibility with various setups. Features simple setup, making it accessible for DIY enthusiasts or professionals needing quick installation. This module fits well for users seeking an effective, low-maintenance way to enhance security in environments prone to unauthorized access or failures, offering peace of mind through dependable notifications.

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This LandaTianrui 80cm USB to RS232 serial adapter cable offers a straightforward solution for connecting USB-enabled devices to equipment with RS232 serial ports. It facilitates data transfer between modern computers and legacy hardware without requiring complex setup. In everyday use, this adapter is helpful for technicians or hobbyists working with devices like modems, digital cameras, or industrial equipment, allowing seamless communication and data exchange in environments where serial connections are still needed. Converts USB ports to RS232 serial interfaces for broad compatibility with various peripherals. Supports up to 1 Mbps data transfer rate, suitable for reliable connections in data logging or device programming tasks. Features plug-and-play functionality with hot-swapping, enabling quick connections without restarts. 80cm cable length provides flexibility for setups where devices are not side-by-side. Built for ease of use, helping to bridge gaps between new and old technology without additional software. Ensures stable connections for applications like cellular phone programming or ISDN adapters. Light specifications include a standard USB-A to DB9 connector design, making it a practical choice for users needing occasional serial connectivity in professional or personal projects.

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The GL09 Plus is a GSM alarm system designed for reliable everyday security monitoring. It uses cellular networks to send alerts, making it suitable for areas without Wi-Fi. In a typical use case, you might install it in a home or warehouse to detect intrusions or environmental changes, like smoke or low battery, and receive immediate SMS notifications or calls on your phone. Features eight alarm inputs with customizable SMS for each, allowing flexible setup for various sensors. Includes low-power sleep mode and real-time battery monitoring to extend device longevity in battery-powered setups. Supports a wide voltage range from DC5V to DC16V, ideal for diverse power sources. Allows setting up to six contact numbers for alerts, with options for NC or NO alarm modes. Compatible with iOS and Android apps for easy configuration via text messages. Specifications include compact dimensions of 8 x 5.8 x 2.2 cm, enhancing its portability for remote or mobile applications. This alarm fits well for users needing straightforward, remote monitoring solutions for homes, warehouses, or equipment, providing peace of mind through timely notifications.

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The 12V Time Relay Module provides reliable automated control for switching devices on and off based on set timers. In practical scenarios, this module helps in projects like managing irrigation systems, where precise timing ensures water pumps activate and deactivate at scheduled intervals, or in home automation for controlling lights and appliances. Supports DC 12V supply and triggers from 5V to 30V or a button press for versatile integration. Offers 27 working modes with adjustable delay times from 0.01 seconds to 999 minutes to suit various applications. Features a simple button interface (S1, S2, S3, S4) for easy mode and time settings, including decimal point adjustments. Relay output handles up to 10A, isolated for safe control of low-voltage or 220V lines. Compact dimensions of 63 x 42 x 20mm make it easy to incorporate into tight spaces. This module is well-suited for electronics enthusiasts, hobbyists, and professionals working on timing-based automation, offering straightforward solutions for precise control needs.

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This Bluetooth stereo amplifier board is a compact component for DIY speaker builds, providing wireless audio connectivity via Bluetooth 5.0. For audio enthusiasts working on custom speaker projects, this board simplifies integration by offering easy volume control and compatibility with various power sources, ensuring stable performance in home setups or portable systems. Adjustable volume potentiometer with an integrated switch for straightforward audio level management. Copper DC connector designed to handle high currents without overheating, promoting reliable operation. Solid 470uF capacitors for effective power storage and heat dissipation, supporting consistent sound quality. Free DC head lead for versatile wiring, compatible with standard adapters or batteries. Bluetooth 5.0 technology for improved transmission efficiency up to 15 meters without obstacles. Built-in self-recovery protections against overheating and short circuits for added safety. With dimensions of 55 x 38 x 17mm and made from durable ABS plastic, it's suitable for users assembling speakers rated 30-200W and 4-8 ohms, fitting well in projects requiring efficient, space-saving audio amplification.

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This Bluetooth stereo amplifier board is a compact component for DIY audio projects, providing wireless connectivity and amplification for custom speaker builds. In everyday use, it's helpful for hobbyists assembling portable speakers or home audio systems, allowing easy connection to smartphones or tablets via Bluetooth for streaming music, with simple volume adjustments to suit different environments. Potentiometer with switch for precise volume control, enhancing user convenience in DIY setups. Copper DC connector designed to handle high currents without overheating, ensuring reliable performance. Solid 470uf35V capacitors for stable power storage and dissipation, supporting consistent sound quality. Bluetooth 5.0 technology for improved transmission efficiency and up to 15m range without obstacles. Includes free DC head lead for straightforward wiring, compatible with various power sources. Built-in self-recovery protections against overheating and short circuits for added safety. With a size of 55 x 38 x 17mm and compatibility for 30-200W speakers at 4 or 8 ohms, it's well-suited for makers needing a versatile, ABS plastic board that adapts to 5-24V supplies.

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The 8-port wiring connector offers a practical solution for secure electrical junctions, especially in lighting setups. Constructed from PA66 material, it ensures reliable performance for various wiring tasks. In everyday use, such as home or office lighting installations, this connector simplifies wire management by allowing easy insertion and removal, reducing the risk of errors and enabling quick adjustments without damaging wires. Made from durable PA66 for long-term temperature resistance up to 105°C. Supports rated voltage of 250V and current of 20A, with compatibility for wires up to 4mm. Includes test holes for safe voltage checking without disassembly. Features independent contact shrapnels, accommodating different wire diameters for versatile connections. Stripping length of 12-13 mm (0.47 in) for precise preparation. Allows direct insertion and easy removal via an orange pressure bar for repeated use. This connector fits scenarios where safe, accessible wiring is essential, such as DIY projects or professional electrical work, providing a straightforward alternative to traditional methods.

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The PCT Series 4-Port Wire Junction Box provides a practical option for managing electrical connections in various projects. Constructed from PA66 material, it ensures durability and resistance to high temperatures up to 105°C. In everyday use, such as home wiring repairs or DIY electrical setups, this junction box simplifies wire management by allowing easy insertion and removal without tools, reducing the risk of loosening or errors. Made from sturdy PA66 for long-term reliability and heat resistance Supports rated voltage of 250V and current up to 20A, with a maximum capacity of 4mm wires at 32A and 400V Includes test holes for safe voltage checking without disassembly Features independent contacts for different wire diameters, accommodating both single-core and stranded wires Requires 9-11 mm stripping length for secure clamping Allows reusable connections via a simple lever mechanism Transparent design helps verify proper wiring for added safety Light specifications include a stripping length of 12-13 mm (0.47 in). This product fits well for electricians and hobbyists needing dependable, user-friendly solutions for secure electrical joins.

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The TTGO T8 is an ESP32-based module designed for DIY wireless projects, featuring WiFi and Bluetooth connectivity for versatile applications. For enthusiasts working on IoT devices or smart home prototypes, this module offers reliable wireless communication and expandable memory options, helping streamline development without needing complex setups. Integrates ESP32-WROVER chip with REV1 version for enhanced performance in wireless tasks Includes 4MB flash memory and 8MB PSRAM to handle more data-intensive projects Features a lithium battery interface with up to 500mA charging current for portable designs Supports TF memory card for easy storage expansion Comes with 3D wires for straightforward prototyping and connections Provides Bluetooth capabilities for short-range device interactions This module fits well in scenarios requiring compact, wireless-enabled hardware, such as custom sensors or automation systems, making it a practical choice for makers and developers.

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The TTGO LORA32 module offers wireless connectivity for IoT devices and projects, utilizing LoRa technology for efficient long-range communication. In practical scenarios, this module suits applications like remote sensor networks or environmental monitoring, where low-power, reliable data transmission is essential for extending battery life and covering large areas. Operates at 433MHz frequency, with compatibility for 868MHz and 915MHz variants depending on regional needs. Supports multiple modulation modes including LoRa, FSK, and OOK for versatile data handling. Features low power consumption with sleep current as low as 0.2uA, ideal for battery-operated devices. Provides up to +20dBm transmitting power and high sensitivity for better range and signal reliability. Includes SPI interface for straightforward integration with microcontrollers and other hardware. Functions across a wide temperature range from -40°C to +85°C, ensuring performance in various environments. This module fits well for developers and hobbyists building IoT prototypes, offering dependable wireless options for projects focused on connectivity and data efficiency.

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The TTGO ESP32 Development Board serves as a versatile platform for IoT projects, integrating WiFi and Bluetooth capabilities with essential hardware for connectivity and power management. For developers building IoT devices like environmental sensors or remote monitoring systems, this board offers reliable wireless communication and efficient power handling, making it suitable for applications in smart homes or field deployments. Powered by ESP32-WROVER-B module with 4MB Flash and 8MB PSRAM for robust processing and storage. Includes SIM7600E-H for cellular connectivity, supporting Nano SIM cards and antennas for GPS and global networking. Features solar input interface with a charging IC that handles 4.4-6V, plus a 18650 battery holder for extended operation. Equipped with USB Type-C, SD card slot, and buttons for reset and power control, enhancing ease of use. Operates in a wide temperature range of -40 to 85 degrees Celsius, with low power modes for energy efficiency. Supports various WiFi protocols and Bluetooth v4.2 for distances up to 300 meters. With dimensions of 111mm x 37mm x 20mm and weighing 50g, this board fits well in compact prototypes and is ideal for electronics enthusiasts and engineers seeking a practical solution for wireless IoT development.

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The TTGO T-SIM7000G is a development board designed for wireless projects, featuring an ESP32 chip and SIM7000G module for cellular connectivity. This board suits applications like IoT devices, remote sensors, or GPS tracking systems, where reliable wireless communication and power efficiency are essential. For instance, it can be used in outdoor monitoring setups, drawing power from solar inputs to maintain operation in remote locations without frequent recharges. Integrates ESP32-WROVER-B for Wi-Fi and Bluetooth, supporting protocols like 802.11 b/g/n and Bluetooth v4.2 Includes SIM7000G for cellular data, with Nano SIM card slot and dedicated antennas for SIM and GPS Features USB Type-C, SD card slot, and solar input for versatile power options, including 18650 battery support Offers 4M Flash and 8M PSRAM for ample storage and processing Equipped with reset and power switch buttons, plus overcharge protection for safer use Operates in a wide temperature range of -40 to 85 degrees Celsius With compact dimensions of 111mm x 37mm x 20mm and a weight of 50g, it's ideal for developers working on portable, energy-efficient wireless projects that require integration of multiple connectivity options.

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The TTGO Meshtastic T-Beam is a compact device for wireless outdoor communication, built on ESP32 technology to enable mesh networking. In practical scenarios, it's helpful for activities like hiking or emergency response, where users need reliable, long-range data transmission without cellular coverage. ESP32 processor with WiFi and Bluetooth for flexible connectivity options. LoRa radio supporting frequencies like 433 MHz, with transmitting power up to +20 dBm for extended range. Integrated NEO-6M GPS module for precise location tracking in remote areas. Battery management via TP5400, including LED indicators for real-time status and USB charging. Operates on low power, with working voltage of 1.8-3.7V and sleep mode as low as 0.2uA. This device suits users setting up ad-hoc networks for outdoor monitoring or communication, offering a practical solution for low-power, long-distance needs.

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The TTGO Compact Development Board offers a practical solution for electronics prototyping, centered around the ESP32-WROVER-B chipset for reliable performance in various projects. For everyday use, this board suits tasks like developing IoT devices, wireless sensors, or Bluetooth-enabled gadgets, helping users create custom applications for home automation or data logging without needing complex setups. Features ESP32-WROVER-B with 16MB flash and 520kB SRAM for efficient processing and storage. Includes AXP192 power management, supporting USB Type C input and battery charging up to 500mA. Built-in antenna and slots for SIM Nano and Mini PCIE cards, enhancing wireless connectivity up to 300m. Compact dimensions of 75 x 33 x 10.5 mm and lightweight at 14.5g, making it easy to integrate into portable designs. Supports Bluetooth 4.2 and Wi-Fi protocols for seamless communication in 2.4GHz range. Operates in a wide temperature range from -40°C to +85°C, ideal for diverse environments. Light specifications include a 40MHz crystal oscillator and support for protocols like TCP, UDP, and MQTT, aiding in software development with FreeRTOS. This board fits well for electronics enthusiasts, students, or developers seeking a versatile, compact option for prototyping everyday tech solutions.

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The TTGO ESP32 Development Board offers a reliable platform for IoT and wireless projects, built around the ESP32-WROVER-B chipset for efficient processing and connectivity. For developers and hobbyists, this board is useful in scenarios like prototyping smart home devices or building wireless sensors, where seamless Wi-Fi, Bluetooth, and cellular options simplify data transmission and device integration. Includes 4MB flash memory and 520kB SRAM for handling complex applications. Features a SIM Nano card slot and Mini PCIE slot for expanded connectivity options. Equipped with AXP192 power management, supporting USB Type C input and battery charging up to 500mA. Supports Wi-Fi 802.11 b/g/n and Bluetooth v4.2 for reliable wireless communication up to 300m. Comes with essential buttons like power switch and reset, plus an onboard antenna. Compact size of 75 x 33 x 10.5 mm and lightweight at 14.5g, making it easy to integrate into various projects. This board fits well in environments requiring low-power operation from 2.7V to 3.6V, suitable for applications in embedded systems and IoT development.

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The TTGO ESP32 Wireless Development Board is a compact IoT tool featuring the ESP32-WROVER-B chipset for reliable wireless connectivity. It integrates power management and various interfaces to support a range of embedded projects. This board suits applications like remote sensor monitoring or smart device prototyping, where stable Wi-Fi, Bluetooth, and cellular options are needed. For instance, use it to build a weather station that sends data via LTE when Wi-Fi is unavailable. ESP32-WROVER-B chipset with 520kB SRAM and up to 16MB flash for efficient processing Built-in SIM Nano card slot and Mini PCIE for cellular connectivity via SIM7600E Supports Wi-Fi 802.11 b/g/n, Bluetooth 4.2, and multiple network protocols like TCP, UDP, MQTT Onboard antenna and USB Type C for easy power and programming Compact dimensions of 75 x 33 x 10.5 mm, weighing just 14.5g for portable setups Wide operating temperature range from -40°C to +85°C for versatile environments Power management with AXP192 chip, supporting USB 5V input and battery charging Ideal for electronics enthusiasts and developers working on IoT solutions that require dependable wireless and cellular integration.

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The TTGO ESP32 Development Board offers reliable wireless connectivity for various electronics projects. It features an ESP32-WROVER-B chipset with integrated WiFi and Bluetooth, making it a solid choice for developers building connected devices. For IoT enthusiasts, this board is useful in scenarios like remote environmental monitoring or smart home setups, where it handles data transmission over WiFi or Bluetooth, and supports cellular options via its SIM slot for areas with spotty networks. ESP32-WROVER-B chipset with 4MB/16MB flash and 520kB SRAM for efficient processing Built-in WiFi (802.11 b/g/n up to 150Mbps) and Bluetooth 4.2 for versatile wireless communication Includes SIM Nano card slot and Mini PCIE slot for expanded connectivity options Power management via AXP192 chip, with USB Type C input and battery support for portable use Compact dimensions of 75 x 33 x 10.5 mm and lightweight at 14.5g, ideal for prototyping Supports protocols like TCP, UDP, and MQTT for network integration This board fits well in projects requiring dependable wireless features, suitable for hobbyists and professionals working on embedded systems.

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This 90cm cable connects alligator clips to banana plugs, offering a practical solution for electronic testing setups. In testing scenarios, such as circuit analysis or device diagnostics, this cable provides a secure way to link multimeters, oscilloscopes, or probes to components, helping users make reliable connections without hassle. 90cm length allows for flexible reach in various testing environments Fully insulated alligator clips enhance safety by preventing accidental shorts Copper wiring ensures consistent electrical conductivity for accurate readings Easy insertion into probe tips simplifies setup and swaps PVC insulation offers durability and protection against wear Compact design fits comfortably in toolkits for on-the-go use Light specifications include PVC and copper materials, making it compatible with standard testing equipment for electronics enthusiasts and professionals alike.

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This dual channel Bluetooth stereo amplifier offers a compact solution for audio enthusiasts seeking reliable connectivity options. It features Bluetooth 5.0 for seamless wireless streaming and an AUX input for wired sources, making it versatile for various setups. In everyday use, this amplifier suits scenarios like enhancing home audio systems or portable speaker configurations. Simply connect it to compatible speakers and stream music from your device, with easy volume control via the encoder knob, ensuring clear sound without distortion. Bluetooth 5.0 connectivity with up to 15 meters range for stable wireless performance Supports DC9-24V power supply and adapts to speakers from 10W-100W (4-16 ohms) Delivers 20W x 2 output power with built-in protections against overheating, overcurrent, and short circuits AUX input for alternative audio sources and Sinilink-APP control for convenient adjustments Compact size of 67 x 47 x 18mm, made from durable PCB material for easy integration This amplifier fits well for users building custom audio projects or upgrading existing systems, providing essential features for dependable performance in moderate audio needs.

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This MP3 voice playback module serves as a versatile component for audio projects, supporting MP3 and WAV formats with various sampling rates. In DIY electronics or home automation setups, it enables straightforward audio playback and control, such as triggering sounds via serial commands or IO ports, making it suitable for interactive displays or alarm systems. Decodes MP3 and WAV files at sampling rates from 8 to 48 KHz for clear audio output. Features a 24-bit DAC with 90dB dynamic range and 85dB SNR, ensuring reliable sound quality. Operates on a wide 6-35V DC range and includes a built-in amplifier for up to 20W on 4Ω speakers. Supports up to 32GB memory cards via USB for easy file updates. Offers multiple control options, including UART serial for up to 65,535 tracks and 8 IO ports for triggers. Includes ESD protection on IO ports for enhanced durability in various environments. This module fits well in projects requiring flexible audio integration, ideal for makers and engineers working with microcontrollers like Arduino, due to its broad compatibility and control versatility.

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The touch switch board module provides a straightforward solution for touch-sensitive control in electronic projects, available in a pack of 5 units. In everyday use, this module suits DIY enthusiasts working on LED lighting setups, where it enables hands-free switching by detecting touch on various surfaces like glass or plastic, making it ideal for compact prototypes or custom devices. Operates on DC 3V-5V, ensuring compatibility with low-power systems and microcontrollers. Compact 1cm diameter board with a 3mm sensor distance for precise and responsive touch detection. 20cm cable length offers flexibility in wiring without needing extensions. Features double-sided adhesive for easy attachment to materials such as acrylic or ceramics. Supports integration with external relays or power switches for broader applications in LED control and automation. Low dropout design helps maintain stable performance in battery-operated projects. This module fits well in scenarios requiring reliable, space-efficient touch controls for hobbyist electronics or simple automation tasks.

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The TTGO Mini32 is a compact development board featuring the ESP32 chip, suitable for various wireless projects. For hobbyists and developers, this board works well in creating IoT devices, such as environmental sensors or simple automation systems, by leveraging its built-in WiFi and Bluetooth capabilities for seamless connectivity and data transfer. Powered by ESP32 main chip for reliable processing and wireless functions Includes 25Q32 flash memory for storing programs and data Features TP4054 charging IC for battery management in portable setups Equipped with CH340C USB to serial port chip for easy programming and debugging Comes with assorted pins (long female, normal, and short female) for flexible connections Compact design ideal for space-constrained projects Light specifications include the MINI 32 V2.0 model. This board fits well for those exploring wireless electronics, offering straightforward integration for prototyping and experimentation.

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This assortment includes 200 tact switch buttons, offering a range of sizes for various electronic applications like remote controls and LCD panels. In everyday use, these buttons serve as reliable replacements for worn-out switches in devices such as TV remotes or digital displays, helping to restore functionality without needing to buy entire new units. Comprises 10 different specifications, with 20 pieces of each size for flexibility in projects Sizes include options like 3x4x2.5mm and 6x6x3.1mm, allowing for precise fits in compact designs Made from standard materials suitable for electronic assembly, ensuring basic compatibility with common circuits Easy to install with a simple push mechanism, reducing assembly time for repairs or prototypes Compact and lightweight, making them ideal for space-constrained devices Available in a mix that covers both low-profile and standard heights for versatile use These switches fit well in scenarios for electronics enthusiasts or technicians working on custom builds, offering a practical selection to address common replacement needs.

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