QSPLIT

Rev1

I want a split keyboard like quefrency but with encoder and oled just like satisfaction75

Rev2

Left using teensy++ 2.0 right using pro micro. I want a lot of feature but the pro micro firmware max size is limitting me from adding aditional feature. So I think of mixing different board. And it works. I almost never using the macro key on the left side and I want a dedicated encoder instead of changing layer encoder. And changing layout to make it easier for me to search for keycaps set. build log and the firmware coming soon.

Hardware

Component	qty	price	link	total Price
Acrylic case and plate	1	Rp. 148.000	https://www.tokopedia.com/acrylicsolo/custom-cutting-lasercut-acrylic-akrilik-3mm-murah-berkualitas	Rp. 148.000
120 Secondhand gateron brown	1	Rp. 330.000	-	Rp. 330.000
30 Ws2812B LED RGB	1	Rp. 31.616	https://shopee.co.id/product/59604415/4939222643	Rp. 31.616
Oled Lcd 128x32 0.91 inch I2C 12832	1	Rp. 33.744	https://shopee.co.id/product/170081862/5022580326	Rp. 33.744
100PCS Self Adhesive Rubber Feet	1	Rp. 13.178	https://shopee.co.id/product/141603612/4619155961	Rp. 13.178
Adapter Converter Type-C Female to Micro USB Male	2	Rp. 10.146	https://shopee.co.id/product/167281669/3915263052	Rp. 20.292
Carbon keycap 104+21 laser engraved Oem Profile Pbt	1	Rp. 402.691	https://shopee.co.id/product/274610761/7244255012	Rp. 402.691
100pcs m2x25mm screw	1	Rp. 15.000	-	Rp. 15.000
500pcs m2 nut	1	Rp. 20.000	-	Rp. 20.000
Magnet Neodymium Kotak 20x10x2mm	10	Rp. 2.200	https://shopee.co.id/product/2654850/6002597796	Rp. 20.200
Pro Micro ATmega32U4 5V 16MHz	2	Rp. 52.141	https://shopee.co.id/product/63841863/1693666309	Rp. 104.282
4 Pole 3.5mm Stereo Headphone Male Plug Jack Audio	2	Rp. 8.778	https://shopee.co.id/product/170081862/2774782378	Rp. 17.556
4pcs Metal Electric Bass Guitar Volume Tone Control Knobs Dome	1	Rp. 32.718	https://shopee.co.id/product/272832419/6939803069	Rp. 32.718
GENUINE CHERRY PLATE MOUNT STABILIZERS FULLSIZE	1	Rp. 210.000	https://www.tokopedia.com/pixlup/genuine-cherry-plate-mount-stabilizers-stabilizer-fullsize	Rp. 210.000
1N4148 Fast Switching Diodes	150	Rp. 100	https://shopee.co.id/product/52086903/5615237668	Rp. 15.000
Wire Stripper	1	Rp. 2.700	https://shopee.co.id/product/52086903/5632591758	Rp. 2.700
Push button tact switch micro push button	4	Rp. 250	https://shopee.co.id/product/52086903/4505572456	Rp. 1.000
40meter 0.5mm copper wire	1	Rp. 32.500	https://shopee.co.id/product/5773957/167997845	Rp. 32.500
Rotary encoder with switch EC11	1	Rp. 4.617	https://shopee.co.id/GHID-2PCS-Rotary-encoder-with-switch-EC11-Audio-digital-potentiometer-handle-20mm-i.170081862.2774808434	Rp. 4.617
5pcs trrs female pcb	1	Rp. 19.339	https://shopee.co.id/5pcs-Papan-Modul-Ekstensi-Jack-3.5mm-Untuk-Headset-Stereo-i.162080891.4234853478	Rp. 19.339
Total Price				Rp. 1.474.433 ($100)

This is my first time building custom handwired keyboard, even though someone else guide me to build this keeb. some mistakes were made, buying wrong part, buying unnecesery part to reach the minimum free shipping terms. buying to many part because the seller only sell in pack and so on. the cost not include the shipping cost, some part get free shipping some part don't. the cost not including the tool to build this keeb, like solder, soldering iron, caliper, multimeter and etc.

Features

Rotary encoder

the encoder have layers, you can change it to media layer, scrolling layer, backlit layer and brightness layer. To change encoder layer,simply press fn1+encoder. to change base layer like qwerty and so on use fn2+encoder.

Media layer

in media layer when you press the encoder it is a toogle button play pause KC_MPLY. when you turn the encoder clockwise and cc, it is acting as volume up and down (KC_VOLU,KC_VOLD). but when you turn the encoder while holding fn1 or fn2 it is acting as next and previous/fast forward and rewind button. my idea is awesome right? haha. explaining it in my non native lang is hard, just see my code.

void handle_encoder_switch(void){
    if(ENCODER_MODE == media){
        tap_code(KC_MPLY);
    }
    ...
}
void handle_encoder_media(bool clockwise, bool fn1, bool fn2){
    if(clockwise){
        if(fn1){
            tap_code(KC_MNXT);
        }else if(fn2){
            tap_code(KC_MFFD);
        }else{
            tap_code(KC_VOLU);
        }
    }else {
        if(fn1){
            tap_code(KC_MPRV);
        }else if(fn2){
            tap_code(KC_MRWD);
        }else{
            tap_code(KC_VOLD);
        }
    }
}

Backlit layer

the idea is the same as media layer, when in this layer, the encoder button will act as ... just see my code

void handle_encoder_switch(void){
    ...
    else if(ENCODER_MODE == backlit) {
        rgblight_step();
    }
    ...
}
void handle_encoder_backlit(bool clockwise, bool fn1, bool fn2){
    if(clockwise){
        if(fn1){
            rgblight_increase_hue();
        }else if(fn2){
            rgblight_increase_sat();
        }else{
            rgblight_increase_val();
        }
    }else {
        if(fn1){
            rgblight_decrease_hue();
        }else if(fn2){
            rgblight_decrease_sat();
        }else{
            rgblight_decrease_val();
        }
    }
}

Brightness layer

it is just brighness nothing else

Scroll layer

void handle_encoder_scroll(bool clockwise, bool fn1, bool fn2){
    if(clockwise){
        if(fn1){
            tap_code(KC_WH_R);
        }else if(fn2){
            tap_code(KC_WH_R);
        }else{
            tap_code(KC_WH_D);
        }
    }else {
        if(fn1){
            tap_code(KC_WH_L);
        }else if(fn2){
            tap_code(KC_WH_L);
        }else{
            tap_code(KC_WH_U);
        }
    }
}

128x32 Oled display

I want the same firmware as satisfaction75 the oled display is awesome, but I can't. So I use font image edit font using https://helixfonteditor.netlify.app/

22 WS2812 RGB lightning (11 each halves)

nothing awesome about this

Base layer

The base layer is just switching between qwerty mac and qwerty windows by pressing fn2+encoder, I can add another like dvorak colemak and etc but I don't want to learn them.

Layout

Edit this layout in http://www.keyboard-layout-editor.com

Finished Build

more photos at https://imgur.com/gallery/rXZYqem

Wiring

communication protocol is serial using D3 pin, the LED Din pin use B5 pin, the right halve encoder connected to the i2c pin D1 and D0 so I have to disable the oled driver on the right halve to use encoder, and I can't use the Oled display if the right side is the master, always use left as master.

there is only 1 pin left, B5. I intend to use it for buzzer but the maximum size of pro micro firmware not allow me to add this feature :'(.

Build Log

This is my first custom keyboard and it is a handwired. I am too excited to finish this keeb ASAP so I don't document my build. but here are some pictures of my build without timestamp.

Acrylic case arrive

trying the switch on the double layer plate acrylic (1.5mm+3mm). It is fit and click without adding some glue. the doubleplate acrylic idea by @dayatz

Starting build

at first it looks good

adding the pro micro, trrs, led and etc. Disgusting wiring.

this is suppose to be underglow

I trust my ability so no need to test it on breadboard.

The end

I am learning so much by building this keyboard, at first it confusing, but once you understand how it works, you can build it faster. I am not satisfied yet with this keyboard, I will upgrade the mcu and other part. just wait for rev2. forgive my typo and bad grammar,I try my best.

Credits

Thanks for member of Indonesian Mechanical Keyboard Group. Thank you so much @herpiko for the inspiration and the thorough guide, @dayatz for the double layer acrylic plate desain so I can reduce the cost. thanks @sendz for open sourcing his acrylic case design so I can learn to make my own version. Thanks for the qmk discord member for helping with some issue.