Electronics Modules, Boards & Connectors

Whether you're a seasoned embedded systems engineer, a passionate hobbyist, or just getting started with microcontrollers, our Electronics Modules, Boards & Connectors collection has everything you need to bring your projects to life. From compact OLED and TFT display modules to relay switches, optocoupler isolation boards, and professional BGA reballing stencils, we stock high-quality components compatible with Arduino, Raspberry Pi, STM32, and more. Build smarter, prototype faster, and connect with confidence.

Featured Products

• 0.42" White OLED Display 72x40 I2C SPI SSD1306 for Arduino – A ultra-compact OLED module perfect for wearables, status displays, and space-constrained projects.
• 1.5-Inch 128x128 OLED Module for Arduino, Raspberry Pi & STM32 – A vivid, high-contrast OLED screen with broad platform support for versatile embedded applications.
• 1-Channel Relay Module 3.3V–24V Dual Optocoupler Isolation – A robust, wide-voltage relay board with dual optocoupler isolation for safe, reliable switching in automation projects.
• 0.96" TFT LCD SPI Display Module ST7735 65K Color for Arduino – A brilliant 65K-color TFT display offering rich visuals for Arduino-based dashboards and UI displays.
• 0.55mm Direct Heating Steel Mesh Stencil GPU BGA Reballing – A precision-engineered stencil designed for professional GPU BGA reballing and PCB rework tasks.

What's in This Collection?

Our Electronics Modules, Boards & Connectors collection spans a wide range of component categories to serve every level of maker and professional:

• OLED Display Modules: Available in sizes from 0.42" to 1.5", supporting I2C and SPI interfaces with drivers like SSD1306, SSD1307, SSD1315, and SH1107.
• TFT LCD Modules: Full-color screens with ST7735 and ST7701 drivers, available in various resolutions including 128x128, 128x160, and round 360x360 displays.
• Relay & Switch Modules: Single-channel relay boards with IR remote control or optocoupler isolation, compatible with 3.3V to 24V logic levels.
• BGA Reballing Stencils: Direct heating steel mesh stencils for GPU and chipset reballing, including models for BD82HM65/67/76/77 and other popular chips.

Why Shop With Us?

• ✅ Broad compatibility with Arduino, Raspberry Pi, ESP32, STM32, and more
• ✅ Competitive pricing on both hobbyist and professional-grade components
• ✅ Detailed product descriptions to help you choose the right module
• ✅ Fast, reliable shipping to get your projects moving

Learn more: EPA guidance on lithium-ion battery handling

Frequently Asked Questions

Q: What communication interfaces do these display modules support for Arduino projects?

A: Our display modules support both I2C (IIC) and SPI interfaces. I2C modules (like the SSD1306 and SSD1315) require fewer wires, making them ideal for simple setups, while SPI modules (like the ST7735 TFT LCD) offer faster data transfer and are better suited for color-rich or frequently updated displays.

Q: Are these electronics modules compatible with Raspberry Pi and STM32, or only Arduino?

A: Most modules in this collection are multi-platform compatible. For example, our 1.5-Inch 128x128 OLED Module explicitly supports Arduino, Raspberry Pi, and STM32. As long as your platform supports I2C or SPI communication, you can typically use these modules with the appropriate libraries and wiring.

Q: What are BGA reballing stencils used for?

A: BGA (Ball Grid Array) reballing stencils are precision tools used in PCB rework and chip repair. They allow technicians to accurately apply solder balls to GPU, CPU, or chipset packages after the original balls have been removed. Our direct heating stencils are made from high-quality steel mesh for accurate ball placement and consistent results.

Q: What voltage levels do the relay modules in this collection support?

A: Our relay modules support a wide range of input voltages. For instance, the 1-Channel Dual Optocoupler Relay Module is compatible with 3.3V, 5V, 12V, and 24V logic signals, making it suitable for use with virtually any microcontroller or single-board computer platform.

Q: Can I use these OLED and TFT modules in battery-powered or wearable projects?

A: Absolutely! Many of our smaller display modules, such as the 0.42" White OLED (72x40) and the 0.69" OLED (96x16), are extremely compact and energy-efficient, making them excellent choices for battery-powered gadgets, wearable electronics, and portable devices where size and power consumption are critical considerations.