--- title: "ET-ESP32 GATEWAY" url: "https://maker.wiznet.io/gavinchang/resellers/et-esp32-gateway/" markdown_url: "https://maker.wiznet.io/gavinchang/resellers/et-esp32-gateway/md" type: "VAR: Value-Added Reseller Products" author: "ETT" author_url: "http://www.ett.co.th/productI2C_RS485/ET-ESP32-GATEWAY/index.html" editor: "WIZnet" editor_url: "https://maker.wiznet.io/" original_author: "ETT" original_url: "http://www.ett.co.th/productI2C_RS485/ET-ESP32-GATEWAY/index.html" published: "2023-04-26" language: "en" hardware: ["WIZnet W5500"] likes: 0 views: 1567 comments: 0 source: "WIZnet Makers (https://maker.wiznet.io/)" --- # ET-ESP32 GATEWAY > ET-ESP32 GATEWAY Original author: ETT (source: http://www.ett.co.th/productI2C_RS485/ET-ESP32-GATEWAY/index.html) ## Components - **WIZnet W5500** x 1 ([docs](https://docs.wiznet.io/Product/Chip/Ethernet/W5500)) WIZnet parts: W5500 ([Datasheet](https://docs.wiznet.io/Product/Chip/Ethernet/W5500/datasheet?utm_source=maker&utm_medium=project&utm_campaign=w5500), [product hub](https://maker.wiznet.io/products/w5500/)) ## Article ET-ESP32 GATEWAY is a microcontroller board based on ESP32 family. The board uses ESP32 module of espressif model ESP32-WROVER-B as MCU on board. Board ET-ESP32 GATEWAY is designed to support applications in the form of A small Gateway device for connecting between the Internet network and various I/O devices or Sensors. In terms of connecting to external Internet networks, it can be connected via WiFi or Ethernet LAN signals and In terms of connecting with other I/O devices or Sensors, it can be connected via I2C Bus either I2C Bus-3.3V and I2C Bus-5V such as ET-I2C REL8 , ET-I2C DCIN8 or RS485 such as Modbus RTU or Frequency such as LoRa Module/GSM Module/GPS that use USART TTL connection. feature - Using ESP32 ESP-WROOM-32 - SMD MODULE, ESP32-D0WDQ6, 2 CORES 32 bit LX6 MCU, 600 MIPS, 4MB SPI FLASH, 8MB PSRAM - WIFI 802.11 b/g/n, 2.4GH-2.56GHz - BLUETOOTH V4.2 BR/EDR AND BLE - TEMPERATURE SENSOR, 440 MHZ CRYSTAL - HARDWARE MODULE INTERFACES SD CARD - UART - SPI - SDIO - I2C - ADC - DAC - HALL SENSOR - I2C RTC:DS3231 with Battery Backup included - With I2C EEPROM:24xx(Option) - 2 channel RS485 Half Duplex Auto Direction Transceiver (ON BOARD will provide 1 channel) - 1 RJ45 Ethernet LAN slot (W5500 Wiznet) - 3.3V I2C Bus is connected via Connector Wafer 5Pin and Screw Terminal 4Pin for system expansion. - 5V I2C Bus is connected through Connector Wafer 4Pin and Screw Terminal 4Pin for system expansion. - 1 Mini Buzzer sound generator - 2 LED Power 5V/3.3V Status and 3 LED Free User Status - 7-24VAC/DC Power Supply Input - PCB size 122 x 87mm. - [Additional purchase] Compatible with ETT's LoRa RAK4270 module. - LORA-RAK4270-AS923 MODULE ( P-ET-A-00688 ) 480.- - [Additional purchase] can be installed in BOX DIN box - BOX DIN ESP32 GATEWAY(A-BX-E-00104) that adds a LAN slot and a sticker, price 210.- - [Additional purchase] [ET-USB USART/TTL](https://www.etteam.com/productI2C_RS485/ET-USB%20USART_TTL/ET-USB%20USART_TTL.html) (P-ET-A-00580) price 280.- can be used to develop program with ET-ESP32 GATEWAY set In the set ET-ESP32 GATEWAY ... contains - ET-ESP32 GATEWAY - Documentation [download below] [![](http://www.ett.co.th/productI2C_RS485/ET-ESP32-GATEWAY/2a.jpg)](http://www.ett.co.th/productI2C_RS485/ET-ESP32-GATEWAY/2.jpg) [![](http://www.ett.co.th/productI2C_RS485/ET-ESP32-GATEWAY/3a.jpg)](http://www.ett.co.th/productI2C_RS485/ET-ESP32-GATEWAY/3.jpg) Example of connection with [RAK4270 LORA](http://www.etteam.com/prodIOT/LORA-RAK4270-AS923-MOD/index.html) and [ET-USB USART/TTL](https://www.etteam.com/productI2C_RS485/ET-USB%20USART_TTL/ET-USB%20USART_TTL.html) Example of connection with [RAK4270 LORA](http://www.etteam.com/prodIOT/LORA-RAK4270-AS923-MOD/index.html) Example of connection with [ET-USB USART/TTL](https://www.etteam.com/productI2C_RS485/ET-USB%20USART_TTL/ET-USB%20USART_TTL.html) BOX DIN ESP32 GATEWAY(A-BX-E-00104) that penetrates the LAN port and sticker price 210.- Example of BOX DIN ESP32 GATEWAY assembly with board Example of BOX DIN ESP32 GATEWAY assembly with board [![](http://www.ett.co.th/productI2C_RS485/ET-ESP32-GATEWAY/4a.jpg)](http://www.ett.co.th/productI2C_RS485/ET-ESP32-GATEWAY/4.jpg) [![](http://www.ett.co.th/productI2C_RS485/ET-ESP32-GATEWAY/5a.jpg)](http://www.ett.co.th/productI2C_RS485/ET-ESP32-GATEWAY/5.jpg) [![](http://www.ett.co.th/productI2C_RS485/ET-ESP32-GATEWAY/6a.jpg)](http://www.ett.co.th/productI2C_RS485/ET-ESP32-GATEWAY/6.jpg) [![](http://www.ett.co.th/productI2C_RS485/ET-ESP32-GATEWAY/7a.jpg)](http://www.ett.co.th/productI2C_RS485/ET-ESP32-GATEWAY/7.jpg) [![](http://www.ett.co.th/productI2C_RS485/ET-ESP32-GATEWAY/8a.jpg)](http://www.ett.co.th/productI2C_RS485/ET-ESP32-GATEWAY/8.jpg) download - [Thai Catalog :: Thai catalog](http://www.ett.co.th/productI2C_RS485/ET-ESP32-GATEWAY/th-cat-ET-ESP32-GATEWAY.pdf) - [Thai Manual :: Thai Manual](http://www.ett.co.th/productI2C_RS485/ET-ESP32-GATEWAY/th-man-ET-ESP32-GATEWAY.pdf) - [et-esp32-gateway-examples.zip](http://www.ett.co.th/productI2C_RS485/ET-ESP32-GATEWAY/et-esp32-gateway-examples.zip) --- Source: https://maker.wiznet.io/gavinchang/resellers/et-esp32-gateway/