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About Reference Design Library

Instead of searching many manufacturer sites or calling on companies to find and compare designs, now you can search for designs based on the circuit’s performance using Digi-Key’s Reference Design Library.

The Reference Design Library was created in order to:

  • Save Engineers time
  • Deliver ideas, fast
  • Sift through designs based on performance
  • Provide designs conveniently accompanied by their schematics

Visit often as new designs are being added weekly and improvements will be made based on your constructive feedback.

Only Show Designs Added Within  Last 30 Days (14) Last 90 Days (42)

Newest 3 Added

DEV-13907: SparkFun ESP32 Thing

Manufacturer: SparkFun Electronics

The SparkFun ESP32 Thing is a comprehensive development platform for Espressif’s ESP32, their super-charged version of the popular ESP8266. Like the 8266, the ESP32 is a WiFi-compatible microcontroller, but to that it adds support for Bluetooth low-energy (i.e BLE, BT4.0, Bluetooth Smart), and nearly 30 I/O pins. The ESP32’s power and versatility will make it the foundation of IoT and connected projects for many years to come.

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EVAL-SCS001V1: USB Type-C to Screw Terminal Breakout Adpater

Manufacturer: STMicroelectronics

The EVAL-SCS001V1 reference design let you create a USB Type-C connector quickly and easily in order to power any application up to 100 W (20 V, 5 A).

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DEV-13741: SparkFun RedStick

Manufacturer: SparkFun Electronics

In 2015 we developed the BadgerStick as a fun and interactive way for people to learn about soldering and engage with SparkFun products at the multiple trade shows we appeared at. In 2016 we have refined the BadgerStick into what you see here, the SparkFun RedStick! The RedStick combines some of our favorite features like the Uno's Optiboot bootloader, the FTDI, small size, and the ability to plug directly into a computer's USB port (no FTDI board or USB cable required).

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