![allwinner a64 board allwinner a64 board](https://m.media-amazon.com/images/I/61F5+f0L5XL._AC_SL1000_.jpg)
See that small box labeled AR100 at the top of the block diagram? Meet the AR100, a controller originally intended to manage low-power operations of the A64. It turns out that there is already a secondary microcontroller hidden in plain sight, integrated into the A64 itself. could have addressed this problem by putting a secondary microcontroller on the board, but he found an even more elegant solution instead.
ALLWINNER A64 BOARD DRIVERS
“But Linux is not a real-time operating system”, we hear you cry, “and controlling stepper motor drivers from an A64 SoC is just asking for trouble”. The Recore board is powered by an AllWinner A64 system on chip (SoC) which packs four ARM Cortex-A53 AArch64 cores running Debian Linux. The applications include Klipper, a project we wrote about when it was first introduced, and the OctoPrint print server. ’s design merges these together into one compact 12 x 12 x 4 cm package. Many setups also have a second computer, often Linux-based, which is dedicated to supporting tasks like running an Octoprint server and interfacing to a digital camera to monitor print progress remotely.
![allwinner a64 board allwinner a64 board](https://hackaday.com/wp-content/uploads/2017/04/img_2815-2.jpg)
The typical 3D printer has a dedicated controller which handles the real-time aspects of driving stepper motors. No stranger to the world of 3D printers, from the workshop has released a new controller board called Recore.