Prime52left
About the Prime52left PCB
Prime52left is an open source PCB design by DreaM117er, published on GitHub under the MIT license. It is a 2-layer board measuring 171.3 × 109.3 mm, with 78 components from 10 distinct parts.
Other key parts include the MCU_Left. By type, the board carries 26 relays, 26 diodes, 23 inductors, 1 IC and 1 transformer.
It belongs with the keyboards designs in this gallery.
From the project
a split keyboard equipped with joy-con joystick, rotray encoder ec-11 and mouse wheel.
- 中文說明（Chinese Readme）。 - 英文說明（English Readme）。
我個人沒有辦法去適應軌跡球的移動模式，更不用說要用什麼方式去操作它，因此在我將探索者1號設計出來的當下，我就知道還有一個將遊戲搖桿（Joystick）加進鍵盤內的構想在，也確實也有不少前輩設計出來，比如Dactyl Manuform Skeleton Edition的完整STL模型中，就有搖桿的存在。但礙於當時的我沒有足夠地了解3D建模及QMK韌體，一直到現在才有能力將這個很久以前就一直深埋在內心的夢想付諸實行。
它叫做Prime52，很簡單直接地說，它就是搭載Joy-con搖桿、EC-11旋轉編碼器及滑鼠滾輪的一把矮軸鍵盤，支援Choc v1、v2熱插拔。
- 滑鼠滾輪安裝上的困難，未來改進有無按鍵雙支援。 - 滑鼠編碼器的脈衝問題（暫時無法解決）。 - MCU的侷限性，未來可以支援更多類型的MCU，往大眾常使用的為主。 - 電路板的走線問題，也是無法支援更多MCU的主因。 - Slave端搖桿電位漂移、LED燈訊號有時而不穩定，有可能會開發新的鍵盤直接改掉這些問題。 - 看似對稱，但無法設計成對稱（Joy-con搖桿的主因）。
Main components on the Prime52left
Prime52left bill of materials (BOM)
78 components, 10 distinct parts.
| Qty | Part | Footprint | Refs |
|---|---|---|---|
| 1 | MCU_Left | MCU_RP2040SuperMini_SMD | U1 |
| 22 | SW_Push | SW_Choc_KLP12_Hotswap_Plated_1.00u | K1, K2, K3, K4, K5, K6, K8, K9 +14 |
| 1 | EC-11 | RotaryEncoder_EC11 | K7 |
| 1 | SW_Push | SW_Choc_KLP12_Hotswap_Plated_1.25u | K22 |
| 1 | ~ | SW_MicroSwitches_Kailh_THT | K23 |
| 1 | NS Joy-con | Joystick_NSJoy-con | K26 |
| 1 | MW | RotaryEncoder_MouseWheel | RE1 |
| 1 | TRRS_L | TRRS-PJ-320A | T1 |
| 26 | 1N4148_TS | D_SOD-123 | D1, D2, D3, D4, D5, D6, D7, D8 +18 |
| 23 | WS2812B | LED_SK6812MINI-E | L1, L2, L3, L4, L5, L6, L7, L8 +15 |
Prime52left design files
The KiCad project lives in the DreaM117er/Prime52 repository on GitHub; these links point at the commit this page was built from.
Prime52left: common questions
How big is the Prime52left PCB?
The Prime52left measures 171.3 × 109.3 mm, has 2 copper layers and is 1.6 mm thick.
How many components are on the Prime52left?
78 components, from 10 distinct parts. The full bill of materials is listed on this page.
Where can I download the Prime52left design files?
From the DreaM117er/Prime52 repository on GitHub, which has the KiCad layout; the links under Design files point to each one.
Can I use the Prime52left design in my own project?
Yes, under the terms of its MIT license, which DreaM117er chose for the repository.
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