# ModBusWiFi

> Connect to Modbus RTU/ASCII devices over WiFi.

Canonical page: [https://chrome-stats.com/d/com.freeunit.modbuswifi](https://chrome-stats.com/d/com.freeunit.modbuswifi)

## Overview

- **ID:** `com.freeunit.modbuswifi`
- **Platform:** Android
- **Type:** Android app
- **Status:** Available
- **Publisher:** Tim A.
- **Category:** TOOLS
- **Downloads:** 77
- **Version:** 1.0.5
- **Last updated:** 2026-07-01
- **First published:** 2025-04-24
- **Publisher country:** UZ
- **Size:** 21 MB
- **Data as of:** 2026-09-05
- **Store listing:** [Google Play Store](https://play.google.com/store/apps/details?id=com.freeunit.modbuswifi)
- **Website:** [https://deeperhole.com](https://deeperhole.com/)
- **Privacy policy:** [https://deeperhole.com/privacy](https://deeperhole.com/privacy)

## Description

ModBusWiFi is an Android tool for working with Modbus devices over a WiFi connection.<br>Use it to connect your phone to industrial controllers, inverters, power supplies, test equipment, and other Modbus-compatible devices through a TCP serial bridge, WiFi-to-RS485 adapter, or an ESP8266 module running esp-link.<br>Typical connection:<br>Android phone -&gt; WiFi -&gt; ESP8266 / TCP serial bridge -&gt; RS485 -&gt; Modbus device<br>Main features:<br>Connect to a device by IP address and port.<br>Work with Modbus RTU and Modbus ASCII through a WiFi serial bridge.<br>Read holding registers.<br>Send register write commands.<br>Configure quick ON/OFF commands.<br>Create snippets for frequently used commands.<br>View responses in HEX.<br>Save communication logs.<br>Add timestamps to received data.<br>ModBusWiFi is useful for engineers, technicians, makers, and anyone who needs a simple mobile tool for testing or controlling Modbus devices without a laptop.<br>The app can be used with many TCP-to-serial or WiFi-to-RS485 adapters. It can also work with low-cost ESP8266 modules when configured as a WiFi serial bridge.<br>Setup guide, ESP8266 firmware sources, and connection examples:<br>https://deeperhole.com/modbuswifi<br>Note: third-party firmware and tools are provided by their respective authors. The setup page links to official sources whenever possible.

## Rankings

- #2,074,377 — Overall

## Permissions and access

### Permissions

- `android.permission.ACCESS_NETWORK_STATE`
- `android.permission.INTERNET`
- `com.android.vending.CHECK_LICENSE`
- `com.freeunit.modbuswifi.DYNAMIC_RECEIVER_NOT_EXPORTED_PERMISSION`

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Source: [Chrome-Stats](https://chrome-stats.com/d/com.freeunit.modbuswifi)