Blueprint

My own custom sayo device!!! (Without magnetic switches)

It's a custom sayo device with 3 cherry mx switches a rotary encoder and a 128 x 32 oled screen

Created by Arthur Arthur

Hackpad

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samliu samliu ⚡🚀 submitted My own custom sayo device!!! (Without magnetic switches) for ship review ago

cubit010 cubit010 requested changes for My own custom sayo device!!! (Without magnetic switches) ago

fixing paglu perma reject!
you should be good to resubmit now!

Tier: 4

Arthur Arthur submitted My own custom sayo device!!! (Without magnetic switches) for ship review ago

Arthur Arthur added to the journal ago

Assembled the device

PXL_20260412_205628411

Here all I did was get all of my 3d printed parts I made and screwed on the pcb into the base and put the top/knob onto it. surprisingly it all fit perfectly together and after flashing the code into it, it all works now so I can say that the project is done.

Arthur Arthur added to the journal ago

Soldered all of the components to the pcb

image
(Ignore the bad solder joints they look way better now)

Well after getting my soldering iron and all of the components I started to solder them onto the board according to the schematic I made. I applied flux onto the parts of the pcb I would solder the component to and then solder it on. This took me about 45 minutes to do.

CAN CAN ⚡🚀 approved My own custom sayo device!!! (Without magnetic switches) ago

Awesome hackpad

Arthur Arthur submitted My own custom sayo device!!! (Without magnetic switches) for ship review ago

Shadow Shadow requested changes for My own custom sayo device!!! (Without magnetic switches) ago

Hey! Cool hackpad, I loved the design, but there are a few changes required. You need to connect the SCL and SDA pins of OLED to the SCL and SDA pins of Xiao, respectively (pins D5 and D4 ). Also, please have the source files of your CAD model in the repo!

Arthur Arthur submitted My own custom sayo device!!! (Without magnetic switches) for ship review ago

Arthur Arthur started My own custom sayo device!!! (Without magnetic switches) ago

4/12/2026 3:55 PM - Soldered all of the components to the pcb

image
(Ignore the bad solder joints they look way better now)

Well after getting my soldering iron and all of the components I started to solder them onto the board according to the schematic I made. I applied flux onto the parts of the pcb I would solder the component to and then solder it on. This took me about 45 minutes to do.

4/12/2026 3:59 PM - Assembled the device

PXL_20260412_205628411

Here all I did was get all of my 3d printed parts I made and screwed on the pcb into the base and put the top/knob onto it. surprisingly it all fit perfectly together and after flashing the code into it, it all works now so I can say that the project is done.