[Keyboard] add Symmetric70 keyboard prototype (#10780)
* proto_symmetric70 作成中
74hc157 無しで 片手動作は、右と左でそれぞれうごいた。
* add 74HC157 support
* add keymaps/default_mac
* update proto_symmetric70/keymaps/default_mac/readme.md
* update 74HC157 support
* add keyboards/handwired/proto_symmetric70/matrix.c.patch
* update keyboards/handwired/proto_symmetric70/readme.md
* rename proto_symmetric70 to symmetric70_proto
* Update keyboards/handwired/symmetric70_proto/config.h
Co-authored-by: Drashna Jaelre <drashna@live.com>
* Update keyboards/handwired/symmetric70_proto/symmetric70_proto.c
Co-authored-by: Drashna Jaelre <drashna@live.com>
* Update keyboards/handwired/symmetric70_proto/readme.md
Co-authored-by: Ryan <fauxpark@gmail.com>
* update readme.md
* update keyboards/handwired/symmetric70_proto/config.h
* remove keyboards/handwired/symmetric70_proto/matrix.c.patch
* Update keyboards/handwired/symmetric70_proto/matrix.c
Co-authored-by: Drashna Jaelre <drashna@live.com>
* Update keyboards/handwired/symmetric70_proto/matrix.c
Co-authored-by: Drashna Jaelre <drashna@live.com>
* use KC_NO, _______
Co-authored-by: Drashna Jaelre <drashna@live.com>
Co-authored-by: Ryan <fauxpark@gmail.com>
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