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7x4x2

eswai·7x4x2

7x4x2 PCB layout, top view — open source board by eswai

About the 7x4x2 PCB

7x4x2 is an open source PCB design by eswai, published on GitHub under the MIT license. It is a 2-layer board measuring 151 × 76 mm, with 39 components from 9 distinct parts.

Other key parts include the BL652_LEFT. By type, the board carries 29 relays, 3 connectors, 2 switches, 2 diodes, 2 capacitors and 1 IC.

It belongs with the keyboards and iot & wireless designs in this gallery.

From the project

7x4x2 - wireless split ortholinear keyboard

7x4x2 (seven-four-two)はBluetooth対応の左右分割式、格子配列のキーボードです。 本キーボードはSatT氏が設計されたCaravelleの公開情報を活用させていただき、主にキーの配列を変更したものです。 SatT氏のご厚意に感謝いたします。

- タカチ電機工業 BK型コイン電池ホルダー BK-869 - 電池 CR1632 - マイコン Laird BL652-SA-01-T/R - チップ積層セラミックコンデンサー 100μF6.3V X6R 3216 - チップ積層セラミックコンデンサー 0.1μF50V F 2012 - 表面実装用ショットキーバリアダイオード (40V2A)SS2040FL - 小型スライドスイッチ 1回路2接点(面実装タイプ) SSW1P2T-SMT - アルプス電気 (ALPS) 表面実装タクトスイッチ 5.2mm角薄型タイプ SKQGAFE010 - スタンドオフ M2 6.5mm ARB-2006.5E - ネジ M2x5mm - Cherry MXスイッチ - MXスイッチ用ソケット

7x4x2, from the project README
From the project README

Main components on the 7x4x2

BL652_LEFT

7x4x2 bill of materials (BOM)

39 components, 9 distinct parts.

QtyPartRefs
1
BL652_LEFT
U1
1
Conn_01x04
J2
2
Conn_01x02_Female
J3, J4
29
keyboard_parts_KEYSW
K1, K2, K3, K4, K5, K6, K7, K8 +21
1
RESET_SW
SW1
1
SW_SPDT
SW2
2
D
D1, D2
1
0.1uF
C1
1
100uF
C2

7x4x2 design files

The KiCad project lives in the eswai/7x4x2 repository on GitHub; these links point at the commit this page was built from.

7x4x2: common questions

How big is the 7x4x2 PCB?

The 7x4x2 measures 151 × 76 mm, has 2 copper layers and is 1.6 mm thick.

How many components are on the 7x4x2?

39 components, from 9 distinct parts. The full bill of materials is listed on this page.

Where can I download the 7x4x2 design files?

From the eswai/7x4x2 repository on GitHub, which has the KiCad layout; the links under Design files point to each one.

Can I use the 7x4x2 design in my own project?

Yes, under the terms of its MIT license, which eswai chose for the repository.

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