# Custom MCU using a SMD ATMEGA328

**URL:** <https://forum.arduino.cc/t/custom-mcu-using-a-smd-atmega328/1026629>\
**Category:** General Guidance\
**Created:** [August 29, 2022, 4:54am UTC](https://forum.arduino.cc/t/custom-mcu-using-a-smd-atmega328/1026629 "2022-08-29T04:54:50Z")\
**Posts on this page:** 1\
**Showing post:** 7

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**Author:** ![LarryD](https://dub1.discourse-cdn.com/arduino/user_avatar/forum.arduino.cc/larryd/32/215550_2.png) [@LarryD](https://forum.arduino.cc/u/LarryD)\
**Post date:** [August 29, 2022, 5:49am UTC](https://forum.arduino.cc/t/custom-mcu-using-a-smd-atmega328/1026629/7 "2022-08-29T05:49:35Z")

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Here is an example of a Mother Board design with a Boost Converter, Pro Min and the capability of an DS3231 RTC.

 ![BoxF](https://europe1.discourse-cdn.com/arduino/original/4X/5/5/f/55fa00bf3fab88944444c68a3c0dc0ab5f521be5.jpeg)

 ![image](https://europe1.discourse-cdn.com/arduino/original/4X/9/f/d/9fdc677fd0734de00440258ce8497b613eabf835.jpeg)

**From post**

> [@Share tips you have come across](https://forum.arduino.cc/t/share-tips-you-have-come-across/428745/809):
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