Electronic Modules & Components

Whether you're a seasoned engineer, a passionate hobbyist, or just beginning your electronics journey, our Electronic Modules & Components collection has everything you need to bring your projects to life. From precision voltage and current sensing modules to vibrant OLED and TFT display screens, each component is selected for reliability, compatibility, and ease of integration. Our modules work seamlessly with popular platforms including Arduino, ESP32, STM32, and Raspberry Pi, so you can prototype and build faster than ever before.

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📟 Display Modules

Crystal-clear visuals for your projects. Choose from a wide range of compact OLED and TFT screens in various resolutions and interface types (I2C, SPI). Popular picks include the 0.42" White OLED Display Module 72x40 I2C SPI for Arduino and the ultra-compact 0.49" OLED Display Module 64x32 I2C IIC SSD1306 White Screen. Need something a bit larger? Check out the 0.78" OLED LCD Module 128x80 Dot Matrix I2C for Arduino for a stunning dot-matrix display experience.

⚡ Voltage & Current Sensing Modules

Accurate measurement is the backbone of any reliable electronic system. Our sensing modules deliver precise, real-time readings for a wide range of applications. The 0-25V DC Voltage Detection Module – Wide Range Sensor is ideal for battery monitoring and power supply testing, while the 0-20mA 4-20mA Current to Voltage Transmitter Module makes industrial signal conversion simple and straightforward.

🔧 DIY & Maker Components

Build, tinker, and innovate with our selection of DIY-friendly components. From micro gear kits for motorized projects to panel-mount voltmeters, we stock the parts that makers need most.

Why Choose Our Electronic Modules?

✅ Wide Compatibility: Works with Arduino, ESP32, STM32, AVR, WEMOS D1 Mini, and more.
✅ Compact & Efficient: Space-saving designs perfect for embedded systems and wearable tech.
✅ Plug-and-Play Ready: Most modules come ready to use with standard I2C, SPI, or UART interfaces.
✅ Great Value: High-quality components at competitive prices for professionals and hobbyists alike.
✅ Broad Selection: Displays, sensors, transmitters, meters, gears, and more — all in one place.

Popular Products at a Glance

Learn more: EPA guidance on lithium-ion battery handling

Frequently Asked Questions

Q: Are these electronic modules and components compatible with Arduino?

A: Yes! The vast majority of our electronic modules and components are designed to be fully compatible with Arduino boards, as well as ESP32, STM32, AVR, WEMOS D1 Mini, and other popular microcontroller platforms. Each product listing includes detailed compatibility information and interface specifications (I2C, SPI, UART, etc.).

Q: What types of display modules are available in this collection?

A: Our Electronic Modules & Components collection features a wide variety of display modules, including OLED screens (ranging from 0.42" to 0.91"), TFT IPS LCD modules, and dot-matrix displays. They come in multiple resolutions and support common communication protocols such as I2C and SPI, making them easy to integrate into your DIY or professional projects.

Q: What is the difference between a 4-20mA current transmitter module and a voltage detection module?

A: A 4-20mA current transmitter module (like our 0-20mA 4-20mA Current to Voltage Transmitter) converts a current loop signal into a readable voltage — commonly used in industrial automation and process control. A voltage detection module, such as our 0-25V DC Voltage Detection Module, directly measures DC voltage levels within a specified range, making it ideal for battery monitoring, power management, and circuit testing.

Q: Do these modules come with documentation or example code?

A: Most of our electronic modules include product descriptions with key technical specifications. Many are also supported by active open-source communities where you can find Arduino libraries, example sketches, and wiring diagrams. We recommend checking platforms like GitHub and the Arduino forums for project-specific guidance and sample code.