Epi 32U4 is a tiny, Arduino-compatible, USB-Type-C dev board powered by the ATmega32U4 microcontroller. We’ve designed it to be as small as practically possible, and it provides quite a few protective features to keep it operating well in noisy environments. That includes a fuse and ESD protection as well as a ferrite bead and a low-pass filter for analog reference in case the power supply is noisy.
  • Epi 32U4’s diminutive size allows you to incorporate it into just about any project. You can solder it directly to a PCB or use the included headers for a less permanent mounting solution. It is also quite easy to hand wire, as it includes mounting slots that allow you to screw it down before you begin soldering.
  • Epi 32U4 can act as a USB device, which makes it ideal for projects like compact keyboards, and its Type-C connector helps you future-proofs your designs. It also has more available IO ports than a standard Pro Micro, so it’s appropriate even for projects where space is not at a premium. Finally, its USB D+ and D- lines are broken out, in case your design requires a separate connector.


Features & Specifications

  • ATmega32U4
  • 16-MHz crystal
  • Runs at 4.5 - 5.5 V for the 16 MHz version, down to 2.7 V at 8 MHz
  • Castellated pins at 1.27-mm spacing
  • ESD and surge protection on USB data lines and power input
  • 500-mA polyfuse
  • Ferrite bead for power filtration
  • Low-pass filter for analog voltage reference
  • 24 available IOs
  • Protruding USB Type-C port with mounting slots beside it
  • LED on pin 13
  • Made in the EU

Pinout Diagram:


Risks & Challenges

We’ve planned everything thoroughly, but since this is our first campaign, unexpected developments may arise. Part shortages are of course a risk, but availability looks quite good at this stage, and we are prepared to make substitutions if necessary. Our PnP machine is new to us—and a relatively new device in general—so it may take us some time to dial it in properly. Should any of this become too much of a burden, we also have a relationship with a local company that specializes in electronics design and manufacturing. If necessary, we can contract with them for PCBA.

Support & Documentation

Package Includes:

  • 1 x Epi 32U4 


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Epi 32U4 - Arduino-compatible ATmega32U4 USB Type-C dev board

  • Brand: Crowd Supply
  • Product Code:NR-CS-Epi-32U4
  • Reward Points:35
  • Availability:In Stock
  • रo 3,485.00

  • Price in reward points:3485

  • 4 or more रo 3,457.00
  • 8 or more रo 3,167.00
  • 20 or more रo 2,986.00
  • 40 or more रo 2,910.00

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Tags: Epi, 32U4, Arduino, ATmega32U4, USB, Type-C, dev board

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