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→Assembling Zynthian MINI V2 into 3d printable enclosure
[[File:Zynthian-on-piano-02.png|thumb]]
[[File:Zynthian-on-piano-02.png|600px|right]]
== Introduction ==
Zynthian MINI kit is a cost effective approach to build a zynthian box with similar functionality to v5 kit.
* include encoders and switches that controll zynthian software in the same way as official zynthian v5 kit using the MCP23017 i/o extender
'''The ''pros'':'''
* include MIDI IN, MIDI OUT and MIDI THRU
* include a I2S DAC for AUDIO OUT based on PMC5102 chip that is affordable to buy
* Lower price
* Possibility of inserting a standard RPi-hat
* Smaller format. It's slighty higher than V5, but quite shorter.
* More DIY! You will learn a lot more while building it.
'''The ''cons'':'''
* No audio input
* No amplified headphones output
* No separated TRS audio connectors. No balanced output/input.
* No USB-B connector. Connecting to PC as USB device is more difficult, but still doable.
* Lower performance at medium-high ambient temperature. Overclocking could cause over-heating. The plastic/fiber-glass case can't be used as a heat-sink.
* No RGB LED feedback on push buttons.
* More difficult to assemble. It requires more time and greater skills (i.e. soldering some electronic parts on the PCB)
* Not so robust. Not so cool, but ... heyyy!! MINI-V2 is also quite cool! ;-)
'''The main features of zynthian MINI are:'''
* encoders and switches to control zynthian software in the same way as official zynthian v5 kit, using the MCP23017 i/o extender
* standard DIN-5 connectors for MIDI IN, OUT and THRU
* it uses a I2S DAC for audio out based on PMC5102 chip that is affordable to buy
* does not need any cabling inside for easy assembling
* does not need any cabling inside for easy assembling
* does not need the case to test it but it include design of two type of enclosure
* does not need the case to test it but it include design of two type of enclosure
** simple enclosure that only cover the top and bottom part of the device that can be also produced in the same way as PCBs
** simple enclosure that only cover the top and bottom part of the device that can be also produced in the same way as PCBs
** full enclosure that can be 3d printed
** full enclosure that can be 3d printed
* all connectors are easy to reach (V1 does not have RPI connectors aligned to the edge of the PCB)
* all RPi connectors are easy to reach
Zynthian MINI is currently at version 2. Previous version 1 was more similar to official V4 kit with only 4 buttons but it is not maintained anymore.
== Requirements ==
To assemble zynthian mini V2 version you will require:
To assemble zynthian MINI V2 version you will require:
* PCB that need to be produced based on KiCad design that you can find in [https://github.com/zynthian/zynthian-hw/tree/master/MINI_V2 zynthian hardware] repository.
* PCB that need to be produced based on KiCad design that you can find in [https://github.com/zynthian/zynthian-hw/tree/master/MINI_V2 zynthian hardware] repository.
* Components that need to be soldered to this PCB.
* Electronic parts needed to be soldered on the PCB.
* 5" Screen
* 5" Touchscreen (DSI)
* Raspberry Pi 4 with heatsink
* Raspberry Pi 4 with heatsink
* optional: zynthian MINI V2 3d printable case
* ''Optional:'' 3D printed plastic case
== Assembling the PCB ==
== Assembling the PCB ==
This will print around 3:30 hours on average commodity printers these days that can easily do 250mm/s such is Elegoo's Neptune 4 or Anycubic Kobra 2.
This will print around 3:30 hours on average commodity printers these days that can easily do 250mm/s such is Elegoo's Neptune 4 or Anycubic Kobra 2.
<embedvideo alignment="inline" dimensions="263" service="youtube" description="Timelapse of this first print.">https://youtu.be/5RSKHbG7Gxg</embedvideo>
Then print bottom part. Lay bottom side of bottom part onto the printer bed. Use the same settings as for previous parts. Bottom part will be printed much quicker.
Then print bottom part. Lay bottom side of bottom part onto the printer bed. Use the same settings as for previous parts. Bottom part will be printed much quicker.