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SHIOGW · BoardRepo

SHIOGW

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https://boardrepo.com/csabaala/shiogw

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Files for version 1. Pick what you came for.

KiCad projectAll 129 files, ready to open in KiCad13 MB

For fabricationGerbers, drill and pick-and-placeGerbers and drill zip269 KB Gerbers and drill zip: GWHMI76 KB Gerbers and drill zip: LRMNT162 KB Gerbers and drill zip: SHIOADS81 KB Gerbers and drill zip: SHIOGW262 KB Pick and place (CSV)12 KB Pick and place (CSV): GWHMI1.9 KB Pick and place (CSV): LRMNT6.0 KB Pick and place (CSV): SHIOADS1.9 KB Pick and place (CSV): SHIOGW5.9 KB

Schematic PDFEvery sheet, to read or print274 KB

3D modelThe board with its parts, for an enclosure (GLB)3D model (GLB)8.8 MB 3D model (GLB): GWHMI1.8 MB 3D model (GLB): LRMNT6.3 MB 3D model (GLB): SHIOADS2.2 MB 3D model (GLB): SHIOGW8.9 MB

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Copy of csabaala/SHIOGW · 2026-11-08

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README

SHIOGW

DIN rail mount extension board for Olimex ESP32-GATEWAY.

More Pictures and Video of the assembled board and extensions.

Example ESPHome configs

Features

12V to 5V step-down converter
2 open collector output (50 mA load per channel)
2 opto isolated input
LEDs for output and input status
2 sensor input (ds18b20, dht)
RS-485 interface
4 pin JST connector for I2C extensions
14 pin IDC connector for direct GPIO access

Extensions

GWHMI

Control interface for SHIOGW.

PCB for 128x64 OLED display and control buttons. Fits the 0.96 and 1.3 inch OLED versions.
Mountable top of the SHIOGW board.
Connects to SHIOGW's 12 pin IDC connector with a small ribbon cable.
BTN1 (up) and BTN3 (down) shared with I1 and I2 on SHIOGW main board.

SHIO88E

I2C IO extension.

Comments

About

DIN rail mount extension board for Olimex ESP32-GATEWAY

esp32 esphome iot kicad olimex-esp32-gateway pcb

Multiple licence files
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Updated Nov 8, 2026

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MCP23017 based

8 open collector output (50 mA load per channel)

8 opto isolated input

LEDs for output and input status

One more I2C connector to connect other device

LRMNT

Adapter PCB to mount Heltec LoRa 32 V3 module to SHIOGW board.

2 extra open collector output (50 mA load per channel)
4 extra opto isolated input

SHIOADS

Din rail mount breakout board for ADS1115 module.

On board voltage divider resistors (R1 - R8)
Solder jumpers to set I2C address (JP1 - JP4)

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