A standard 60% keyboard featuring 75 hall effect keys in an ortholinear layout

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Main components

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Part NumberDescription
STM32F303CCT6STMicroelectronics Arm Cortex-M4 MCU, 256KB flash, 48KB RAM, 72 MHz, 2.0-3.6V, 37 GPIO, LQFP48
TPD4E05U06DQAR
XC6206PxxxMR

HE75 schematic

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HE75 board layout