Tools, APP Software Used etc.

KiCad 8.0

KiCad

Description

SPI bus isolator

I needed a galvanically separated SPI interface between an ESP32 and an OLED display board.

The voltage output of the convertor can be selected by a jumper between 3V3 and 5V for the OLED board.

The RST signal is not passed through, but recreated at the OLED board side to provide a power-up reset.

The board can be inserted in-between the bus from the CPU to the OLED display board.

This board can be used in other SPI bus situations.

The input and output connector can be selected to suit your particular situation and can be mounted on both sides of the board.

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Oct 19,2024

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SPI bus isolator

This is a little board that provides complete galvanic separation between the CPU and an OLED display.

Published: Oct 19,2024

Download Gerber file 1

BOM(Bill of materials)

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Topic

DIY Electronics

Hardware

ESP32

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KiCad 8.0

SPI bus isolator

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