---
title: "Customized relay ESP32 chips wifi/bluetooth/Ethernet/RS485/W5500/SMA antenna & battery RT CR2032"
url: "https://maker.wiznet.io/nagamma06/resellers/customized-relay-esp32-chips-wifi-bluetooth-ethernet-rs485-w5500-sma-antenna-battery-rt-cr2032/"
markdown_url: "https://maker.wiznet.io/nagamma06/resellers/customized-relay-esp32-chips-wifi-bluetooth-ethernet-rs485-w5500-sma-antenna-battery-rt-cr2032/md"
type: "VAR: Value-Added Reseller Products"
author: "Alibaba.com"
author_url: "https://www.alibaba.com/product-detail/Customized-relay-with-ESP32-chips-wifi_1600441786838.html?spm=a2700.galleryofferlist.normal_offer.d_title.62ea57dfcvCcNF"
editor: "WIZnet"
editor_url: "https://maker.wiznet.io/"
original_author: "Alibaba.com"
original_url: "https://www.alibaba.com/product-detail/Customized-relay-with-ESP32-chips-wifi_1600441786838.html?spm=a2700.galleryofferlist.normal_offer.d_title.62ea57dfcvCcNF"
published: "2022-10-25"
language: "en"
likes: 2
views: 1048
comments: 0
source: "WIZnet Makers (https://maker.wiznet.io/)"
---

# Customized relay ESP32 chips wifi/bluetooth/Ethernet/RS485/W5500/SMA antenna & battery RT CR2032

> Customized relay with ESP32 chips wifi/bluetooth/Ethernet/RS485/Lan W5500/SMA antenna and battery RTC CR2032

Original author: Alibaba.com (source: https://www.alibaba.com/product-detail/Customized-relay-with-ESP32-chips-wifi_1600441786838.html?spm=a2700.galleryofferlist.normal_offer.d_title.62ea57dfcvCcNF)

## Article

The ER-01 is the customization products which combine with ESP32 chips(wifi and bluetooth), Ethernet LAN W5500, RS485 comminication methods. It is with SMA antenna and the battery RTC CR2032. We offer the demo App for helping customer develop their own APP.

Currently we have 2/4 channel relay with or without the cover box. The cover box is PC fire-resistance material. It supports wall mounted or Din rail mounted.

## **Overview:**

![](https://maker.wiznet.io/upload/ckeditor5/1015660058%5F1666725975%2Epng)

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Source: https://maker.wiznet.io/nagamma06/resellers/customized-relay-esp32-chips-wifi-bluetooth-ethernet-rs485-w5500-sma-antenna-battery-rt-cr2032/