Connector boards turn a microcontroller’s native signals into practical interfaces for the rest of a system. Breakout boards expose pins for audio jacks, video ports, USB hubs or serial standards such as RS‑232, letting a prototype move from a breadboard to a real‑world device with minimal wiring. Bus adapters and extenders convert I²C‑style connectors into plug‑and‑play formats, increase the number of available ports, or boost signal range for longer cables, while maintaining the timing and voltage requirements of the host. Their compact, surface‑mount designs and built‑in level‑shifting circuitry provide reliable, repeatable connections that integrate easily into hobby or professional projects ranging from sensor rigs to display controllers and embedded communication hubs.
Code: SKU-007315
The SparkFun QwiicBus EndPoint is the fastest and easiest way to extend the range of your I2C communication bus. More Details...
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Code: SKU-007407
The QwiicBus MidPoint works in tandem with the QwiicBus Endpoint to extend the range of your I2C bus and tap into it to drop in devices wherever you want. More Details...
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Code: SKU-007319
Everything you need for a fast and easy way to extend the range of your I2C communication bus. More Details...
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Code: SKU-003777
This is the SparkFun RJ11 Breakout two simple breakout boards for the common 6-pin RJ11 connector. These little boards can easily have one of our RJ11 6-Pin Connectors to work with common telephone cables. More Details...
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Code: SKU-001959
This is the SparkFun RJ45 MagJack Breakout a simple board that will provide you with a way to put an ethernet port into your breadboard. The SparkFun RJ45 MagJack Breakout is the same one found in our very own mbed Starter Kit and breaks out each pin from the ethernet jack. More Details...
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Code: SKU-011247
The SparkFun RS232 Breakout (ST3222) easily connects your 3.3V microcontroller to RS232 serial devices and simplifies wiring with an internal TX/RX crossover. More Details...
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Code: SKU-000048
The smallest and easiest to use serial conversion circuit on the market! This board has one purpose in life - to convert RS232 to TTL and vice versa (TX and RX). This will allow a microcontroller to communicate with a computer. More Details...
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Code: MCU-60241
This simple breakout will enable your microcontroller to communicate with a computer, converting between RS-232 and TTL (TX and RX). More Details...
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Code: SKU-000556
We have no idea what USB device you are hooking up to but if you want to access the microUSB port on something you might want this. We broke out all 5 pins with a vertical microUSB connector for your prototyping needs.Documents:SchematicEagle FilesGitHub More Details...
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Code: SKU-000537
This new version now has all 5 pins broken out on the connector. We have no idea what USB device you are hooking up to but if you need to add a miniUSB/USB Mini-B connector to your breadboard - here it is. More Details...
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