I finished up the first beta of my Espressylu, a low cost 32bit reprap control board. The goal is to make a safe and reliable board that sets a new standard for the low cost market.
This board is based off of the Teensylu board, with some major upgrades.
Most notable changes are:
Atmel SAM3x 32bit mcu
The board is designed for 24v operation only. It’s possible to run 12v with some alterations to the bom, but would require 2oz copper layers. I am trying to push for 24v, it’s much safer.
I’m currently looking for people to do schematic and layout review. As a bonus, if you provide useful feedback (at my discretion), I will donate to contributors an unpopulated board once it’s built. (may take some time before I have them built). I can also populate the boards at-cost + shipping to the US.
This project is open source. I do this in my free time, and am not paid for the development.