Based on the open project of nano_stepper by Misfittech

To improve performance, Makerbase Team has made the following changes:

• Ported the project to STMicroelectronics' 32-bit MCU, STM32F103CBT6 ARM 32-bit Cortex™-M3 CPU Core,72 MHz maximum frequency,20k RAM. 128k Flash
• Changed the magnetic encoder to Allegro's A1333LLETR-T Contactless 0° to 360° angle sensor IC ,12bit
• Ported the compilation platform from arduino to PlatformIO —— Convenient for STM32 MCU compilation
• Change the socket with motherboard, now it can work with much 3D printer motherboards using MKS SV_EXT V1.1 by Makerbase

This project support build and upload by platformio, you can use Atom or Code editor (need install platformio) build it or upload firmware. Please refer to the following method:

Open platformio.ini file, set default_envs = mks_servo57b Other operations are the same as MKS SERVO42B(https://github.com/makerbase-mks/MKS-SERVO42B)

https://www.aliexpress.com/item/4000165230349.html?spm=a2g0o.store_home.productList_8356959.pic_8

The hardware is under the Creative Commons Attribution Share-Alike 4.0 License as much of the work is based on Mechaduino project by J. Church. https://github.com/jcchurch13/Mechaduino-Firmware.

The firmware is based on nano_stepper project by Misfittech：https://github.com/Misfittech/nano_stepper, which is licensed as GPL V3 for non-commercial use. If you want to release a closed source version of this product, please contact MisfitTech.net for licensing details.

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