====== Motorfader-NG Module ======

{{ :neonking:mbhp_mf_v3_proto1.jpg?500 |}}

=====Introduction=====

The MF_NG module is the successor of the MBHP_MF module and has following design targets:

  * find a solution to handle high-quality faders like Alps K faders with "coreless" motors
  * find a solution for Core32 which doesn't deliver stable enough ADC conversion results due to the reduced 3.3V voltage range
  * find a solution for Core32 which cannot handle touch sensors properly without heavy CPU load (resp. without an additional external device or microcontroller)
  * find a solution which is compatible with PIC based projects for best usability
  * find a solution which is DIY friendly and doesn't require additional gear for something which isn't part of the MBHP yet
  * find a solution which can be easily tested and troubleshooted (no need to learn new processes)

{{ ::neonking:mbhp_mf_ng_final1.jpg?600 |}}

And the result is:

  * a dedicated **PIC controller** controls the motorfaders directly.
  * the firmware can be updated via MIDI!
  * **motorfaders are accessed via MIDI** - this allows standalone usage, cascading (to chain multiple modules), and the re-use of existing infrastructure such as MIOS, MIOS Studio and MIOS Bootloader
  * **the module can either be connected to a PC directly, or controlled from a second PIC or STM32** 
  * native support of various protocols (e.g. PitchBender, CCs, even Logic Control and Mackie Control Emulation)
  * support for 8 touch sensors
  * instead of TC4427 I'm using L293D now - not at least because of the integrated diodes.
  * due to the direct motor control connections, **the PIC is now able to generate PWM with 50 uS steps for improved motor speed control** while a motor is moved
  * since the firmware is dedicated for this task, there was enough memory free to integrate advanced features, such as **runtime-calibration and motor position tracing** which are supported by MIOS Studio

===== Parts List =====

see [[mf_ng_board_parts_list|MF_NG Parts List]]

  * {{http://ucapps.de/mbhp/mbhp_mf_ng.pdf|Schematic}}<sup>UCapps</sup>

===== Compatible Motorfaders =====

  * ALPS RASON11M9 {{http://ucapps.de/mbhp/MF_NG_connection_diagram.pdf|Interconnection Diagram}}<sup>UCapps</sup>

===== PIC Source Code =====

  * {{http://ucapps.de/mbhp/mbhp_mf_ng_v1_005.zip|MF_NG PIC Code}}<sup>UCapps</sup>