An Espressif ESP-Modbus Library (esp-modbus) is a library to support Modbus communication in the networks based on RS485 or Ethernet interfaces. yaml code: esphome: name: m5stack-fire platform: ESP32 board: m5stack-core-esp32 # Enable logging logger: # Enable Home Assistant API api: ota: password: "xxx" wifi: ssid: "xxx" password: "xxx" # Enable. 1053×615 86. To connect via TCP you need the Smart Dongle-WLAN-FE with the latest software update (SDongle_V100R001C00SPC120_package) To connect via RTU u need a usb to modbu… BridgeModbus. Automations: on_connect (Optional, Automation): An automation to perform when the. I really appreciate the guidance and advices given here 🙂 I would like to use a RS485. 2. I need to run RTU + TCP modbus master at the same time on my device. The API functions below provide common functionality to setup Modbus stack for slave and master implementation accordingly. Most complete Modbus library for Arduino. mp3 audio file from the file system, the systems blocks until sound is played +/file. non blocking API. only RS485 half duplex (optionally using a GPIO as RTS (DE/RS)) is implemented. PCF8574 I/O Expander. Fortunately, the functionality of all GPIO pins remains consistent. The . In this case you need a TRIAC and a zero-cross. Basically I want the functionality of being able to have devices connect to the ESP32 and for them to have internet through the ESP32. Modbus Client aka Master for ESP32; built for the Arduino framework for ESP32; non blocking API. ESP32-GATEWAY is OSHW certified Open Source Hardware with UID BG000012. The other devices on the network are known as slaves (in our case, NPK sensors), and they can only respond to requests. I²S Audio. I’ve got it setup like this: Wired like the fritzing diagram On. 625º—so it needs 360º/5. Matter protocol supported in all ESP32 variants (C3/S2/S3) since Tasmota v13. Pull requests. Modbus Bridge. ESP8266 is configured to route between the two protocols records in upcoming tutorials is implemented in. (i. Key Features: It supports industrial voltage levels up to 6 - 35Vdc. The ESP32 bridged mode addresses frames between Serial to Serial2, operating equivalent to an FTDI. One is programmed as master and the other one as slave. Code Issues Pull requests ESP8266 based logger for GoodWe inverters. With this version, the mains power reverts to solder rails directly on the PCB. Postby Ashvajit. Find this and. The Smart Meter Interface provides a means to connect many kinds of meters to Tasmota. ESP32 painlessMesh bridge. This automation will be triggered when a CAN frame is received. Onboard LED. Traditional serial Modbus is a register-based protocol that defines message transactions that occur between master (s) and slave devices (multiple masters are allowed on using Modbus TCP/IP). The Modbus protocol uses. examples/4g_hotspot: ESP-IoT-Bridge device can be equipped with a mobile network module with a SIM card and then convert the cellular network into a Wi-Fi signal. In this comprehensive tutorial, we will delve into the world of Modbus RTU RS485 protocol integration with the versatile ESP32 board, all within the familiar confines. Is this bridge (RTU client => ESP32 BRIDGE => TCP server) correct for this. Hello everyone, this is my first post in Arduino Forum, and I am quite a beginner in using RS485 sensors, as I am having some trouble understanding Modbus RTU. 4, TLS now support dual mode, depending of the value of SetOption132: SetOption132 0 (default): the server's identity is checked against pre-defined Certificate Authorities. Here the steps to build your mesh ( we will cover each separately ): 1) build the mesh between nodes - easy. This is my master init code: Code: [Select all] [Expand/Collapse] // Modbus master initialization. In Stock. Features with such requirement have a warning with. Support for Modbus bridge adding commands ModbusSend, ModbusBaudrate and. Onboard LED. The Johnson Street Bridge in Victoria, British Columbia is one of the city’s iconic landmarks. I have done different projects like this without using bridge. Code. ISP-IDF supports Modbus serial slave and master protocol stacks and provides modbus_controller interface API to interact with user application. 0, there is an increasing demand for intelligence, automation and digitization in manufacturing. Different vendors offer Bluetooth solutions, mostly as part of the Xiaomi brand, often under the Mijia label. ) to control a fan (or motor/solenoid). modbus-esp8266. eModbus. Traditional serial Modbus is a register-based protocol that defines message transactions that occur between master (s) and slave devices (multiple masters are allowed on using Modbus TCP/IP). Handle the onbaord LED on a BE32-01, ESP32 or ESP8266 as well as Neopixel LEDs. Easy Deployment with multifunctional BASE. self. A library that allows your Arduino board to communicate via Modbus protocol, acting as a master, slave or both. modbus_bridge import ModbusBridge register_file = 'registers/modbusRegisters-MyEVSE. In the picture below, notice the red jumper wire between IO0 and GND. This library allows your ESP8266/ESP32 to communicate via Modbus protocol. ESP32-WROOM-32D WiFi/BLE module. I tried some options but the IP output of the ESP repeater is not within the range of the ROUTER. Buttons schematics. Components. Sonoff Basic and BME280. You can skip the introduction sections and go directly to Section Start Application Development. 625°/64 in half-step mode. The ESP8266 server uses the connected router’s IP address. local domain!); Port = your MQTT broker port (default port is set to 1883); Client = device's. Serial to TCP Bridge. I tried RTU-master and RTU-slave example by slightly. 15. Ensure the device is in firmware upload mode. Support for up to 3 (ESP8266) or 8 (ESP32) phase modbus energy monitoring device using generic Energy Modbus driver; Support for RGB displays #17414; Support for IPv6 DNS records (AAAA) and IPv6 Ping for ESP32 and ESP8266 #17417;. TCP; RTU; Install additional MicroPython packages; Usage; Supported Modbus functions; Credits; Quickstart. Introduction. 7 - a Python package on PyPI - Libraries. The "Manage File System" page provides: On top, the total size of the file system and the free size. esp8266 esp32 modbus arduino-library modbus. 2. Primarily developed on and for ESP32 MCUs. Modbus RTU / RS485 to MQTT bridge for Solis Mini solar inverter. Configuring Slave Data Access - Configure data descriptors to access slave parameters. ESP32 painlessmesh OTA from web browser. The idea is letting you making your own device and connecting it to mqtt via gateway: Therefore this library provides two (singleton) objects. ESP32 LoRa Boards. ESP32 onboard Camera. built for the Arduino framework for ESP32. modbus-esp8266. Furthermore, please link to the datasheet of. serial esp32 modbus mesh mcu modbus-rtu espnow node-espnow Updated Mar 22, 2021; C; jonshaw199 / af1 Star 4. things //Choose the bridge you want to. 具體用法請自行參考相關討論 最近把家裡的 ESP32 Zigbee 也改刷了 tasmota32 v9. This feature is included only in tasmota-sensors and tasmota32 binaries. In order to use the Modbus Bridge, configure USE_MODBUS_BRIDGE or. Connect the MAX 485 driver's A & B pins with the A & B pins of USB to the RS-485 module. But this project lets you paint. 168. All you have to do is use these steps:H-bridge~ H-bridge is an electronic circuit that switches the polarity of a voltage applied to a load. After looking at the options available, we settled on using an ESP32 WiFi module as a bridge between the Modbus interfaces on the Solis inverter and energy. begin (115200); mod. CAN Bus Modules. Sensors are read using the Modbus protocol and sent to a MQTT server. The code is working fine and I can see the read holding register request as received on the Modbus simulator software but. The solution. Baud rate is the “speed” of data transfer on the RS-485 network. For a basic setup you only need to set Host, User and Password but it is recommended to change Topic to avoid issues. I need to run RTU + TCP modbus master at the same time on my device. client esp8266 tcp server ascii esp32 modbus bridge rs485 linux-client rtu Goto Advanced Function and set to Slave and Modbus SN 01; Flash ESP32. 7. i have same problem. i. Tuya-Convert is the most successful method of flashing Tuya modules without opening the device and soldering. Modbus Controller ¶ The modbus. Tasmota communicates with Home Assistant using MQTT. on_frame Trigger¶. I can confirm the modbus bridge is functioning up to the point that I can read/set baudrate, also the send command returns ok. ESP32 Flowmeter and RS485 Modbus. KEY. esp8266 esp32 modbus arduino-library modbus. This requires brainelectronics MicroPython Modbus. Alexa: You can use Philips Hue emulation, the light will appear as white light with dimmer. It is an interesting display of engineering, and shows the. I really appreciate the guidance and advices given here 🙂 I would like to use a RS485 based sensor with my NodeMCU ESP32 by using MAX485 converter. "In this user guide for ESP32 board with Arduino IDE, we have demonstrated how we can read the data from Modbus RTU device on ESP32 ". 3. This chip enables to use JTAG for direct debugging of ESP32 through the USB interface without a separate JTAG debugger. The hbridge fan platform allows you to use a compatible h-bridge (L298N, DRV8871, MX1508, BTS7960, L9110S, DRV8833, TB6612, etc. Support for up to 3 (ESP8266) or 8 (ESP32) phase modbus energy monitoring device using generic Energy Modbus driver; Support for RGB displays #17414; Support for IPv6 DNS records (AAAA) and IPv6 Ping for ESP32 and ESP8266 #17417;. TLS Secured MQTT. pyarchive below and unpack it. Key features according to the manufacturer are: good sensitivity. For ESP32, pin 16 to TXD and pin 17 to RXD are the default ones but any other pins can be used as well. The apps usually show you the raw Modbus message sent as well as the sensors response. The Modbus protocol uses. Arduino Code for Master. Step 4: Set up Modbus to MQTT converter. ESP USB Bridge creates a composite USB. MCP230XX I/O Expander - I²C Bus. Modbus is an application protocol that defines rules for messaging structure and data organization that are independent of the data transmission medium. " GitHub is where people build software. Supported USB Peripheral The ESP32-S2 supports the USB. While various versions of the ESP32 chip exist in the market, the ESP32 devkit utilizes the ESP-WROOM-32 module. [中文] The Espressif ESP-Modbus Library (esp-modbus) supports Modbus communication in the networks based on RS485, Wi-Fi, and Ethernet interfaces. NET implementations. Actually, this project is far beyond being a simple serial bridge as it also manages MQTT client pub/sub and REST HTTP requests in order to connect the MCU to the internet. We will learn how door sensor works, how to connect door sensor to ESP32, how to program ESP32 step by step. Also, you need to manually control the DE/RE pin directly too. Open your Arduini IDE and go to File > new and create a new sketch. yaml; Connect your PC to the micro USB and run: esphome run deye-esp32-bridge. W5500 enables users to have Internet connectivity in their applications just by using the single chip in which TCP/IP stack, 10/100 Ethernet MAC, and PHY are embedded. Postby NIghthunter101 » Thu Jul 15, 2021 4:35 am. Actually, this. While, MQTT stands for Message Queuing Telemetry Transport, it’s a system where we can publish and. iot esp8266 esp32 mqtt-bridge low-power-comsumption esp-now Updated Aug 23, 2023. On your PC, you should see a Wi-Fi network named sonoff-xxxx where xxxx is a number from the ESP's MAC address. This example demonstrates how to interact with the onboard LED on the BE32-01. The Modbus serial communication protocol is de facto standard protocol widely used to connect industrial electronic devices. MAX485 TTL To RS485 >> DE >> GPIO32 of ESP32; MODBUS Pin Configuration & Initialization with STEP 7-200. 5. ModbusRTU, ModbusTCP and ModbusTCP Security. The biggest problem is that the voltage levels for RS-485 are way different than what you have on an ESP32 so you need an interfacing chip like an MAX485. ESP32 Modules - SMD . Real bridge code should be a bit more complex (need to manage multiple separate push/pull calls to the same slave) Bridge assumed to be working in buffered mode (i. 625°/64 in half-step mode. Hardware setup¶ You need an RS485 transceiver module: See How is this RS485 module working? on. 102, and the port is 8080. Is this bridge (RTU client => ESP32 BRIDGE => TCP server) correct for this. This is the ultimate IoT board with wired 100Mb Ethernet Interface, Bluetooth LE, and WiFi. Author: Andre Sarmento Barbosa,. Use a network tool on the PC to create a TCP server. The 28BYJ-48 Stepper Motor has a stride angle of 5. UFS in the Web GUI. Modbus allows communication among many devices connected to the same network, for example, a system that measures temperature and humidity and communicates the results to a computer. Blocking code is in a seperate task. ingdemurtas January 7, 2021, 9:40pm 1. [中文] The Espressif ESP-Modbus Library (esp-modbus) supports Modbus communication in the networks based on RS485, Wi-Fi, and Ethernet interfaces. The Epever eBox-WIFI-01 I tried first was bricked when attempting a by-the-book firmware update before I. At a given time only one stream can be served, but multiple snapshots. 24” or “10. To make sure the device is actually an MPU6886, we check its signature by reading register 0x75. ESP32-Serial-Bridge. e. Step 4: Circuit Connection and Modbus Slave Software Configuration. ESP32 Camera. The server’s IP address is 192. ESP32 Flowmeter and RS485 Modbus. This means that the shaft (visible. Automations:¶ on_frame (Optional, Automation): An automation to perform when a CAN frame is received. In this sketch, we will send a command “0” or “1” to the slave Arduino Board. Bridge: Enables the communication between the Linux processor and the microcontroller. Process 16 buttons in web GUI. You should choose metric group(s) that are appropriate to your inverter model. I tried to merge Serial master and TCP master projects. It is supported by this EV charge controller: evcc. Open your Arduini IDE and go to File > new and create a new sketch. ESP32-WROVER-E module. The first time you switch to "18 Generic" you will NOT see all the options as seen in the picture below YET. 1. Code samples are provided for opening, closing, configuring, reading, and writing to a COM port in Windows 10 and lat-er. Start the serial master and slave examples: examplesprotocolsmodbusserial* and make sure they can communicate each other. Connect device to. pinging Ethernet address showed that this is really cable connection (3ms rather than 100ms on wifi connection -. Stepper. This is a *perfect* candidate for an ESP32/8266, writing a SCPI translation layer would be a fun project. Compile and upload. 4. Post by alhadi » Mon Jun 20, 2022 12:47 pm . . Usage. function codes implemented: A library that allows your Arduino board to communicate via Modbus protocol, acting as a master, slave or both. It should. Now I want to connect the meter with RS485 to USB converter and read it using the modbus integration of home assistant. Try to talk with solar converter from PC directly. 📚 The latest documentation is available at MicroPython Modbus ReadTheDocs 📚. connect unit to a PC with RS485 adapter and ensure you can communicate before moving it to ESP32. have esp8266 as modbus RTU master against slave device connected to esp8266. I found an example for an ESP8266 on the internet: Reading a TUF-2000M Ultrasonic Flow Meter with an Arduino or ESP8266 and. Supported inverters and metrics. -, while the library will take care of the communication part. Using the two potentiometers on either side of the display, you can move the cursor in your available workspace. The concept of ESP USB Bridge is shown in the following figure. USE_MODBUS_BRIDGE_TCP: The bridge can be used by commands in the console and via MQTT messages but also as Modbus TCP/IP bridge Configuration . The term CPU is used loosely here for the sake of making it easier. h : #ifndef USE_KNX #define USE_KNX // Enable KNX IP Protocol. USB 2. The esp32_camera_web_server component allows you to use expose web server of ESP32-based camera boards in ESPHome that directly can be integrated into external surveillance or PVR software. It has to read and write registers. 168. 4 Demo 8. 5 degrees)). On an ESP32, due to a different implementation, serial ports may not be used in conjunction with other Tasmota serial devices. Add this suggestion to a batch that can be applied as a single commit. 168. client esp8266 tcp server ascii esp32 modbus bridge rs485 linux-client rtu ESP32 BLE Client. Only first 4MB of PSRAM are useable (and reported) even if a bigger chip is connected. That the result if changing your parity modbus bridge to node-red. Usage. Supports Modbus TCP Security for ESP8266/ESP32. Watch the DC motor, You will see: DC motor is accelerated and spins at the maximum speed during 2 second. The BH1750 provides you with a digital value in lux (Lx) over a range of 1 - 65535 lx. png","path":"Node-red/Screenshot. Introduction. {"payload":{"allShortcutsEnabled":false,"fileTree":{"ESP32/main":{"items":[{"name":"CMakeLists. ESP32-C3 is a single-core, 32-bit, RISC-V-based MCU with 400KB of SRAM, which is capable of running at 160MHz. For example, the groov EPIC from Opto22 can support the ability to talk Modbus TCP protocol on the southbound, convert that to MQTT, and then send the data through an MQTT client to an MQTT broker. I’m having trouble with understanding how to actually write the right. Supports Modbus TCP Security for ESP8266/ESP32. ESP 8266 - 01 Bridge Modbus RTU Slave - Modbus TCP IP Slave. When I am initializing modbus table with sequential CID values, it is working fine. HC-SR04 (HC-SR04P and JSN-SR04T) is an ultrasonic ranging sensor. Download USB to. 3. "BME280 sensor, an environmental sensor with temperature, barometric pressure and humidity", see Datasheet. Change the baud rate to 19200 bps. Simple example of using Arduino Ethernet library with ESP32 and W5500 to send messages to TCP server. {"payload":{"allShortcutsEnabled":false,"fileTree":{"examples/Bridge/TCP-to-RTU-Simulator":{"items":[{"name":"TCP-to-RTU-Simulator. Download binaries from: Official OTA Server:~Modbus RTU Protocol. 4. I have a problem communicating with Easergy P3 Schneider device using Arduino to monitor the data on the serial of the Arduino. Documentation (Wiki) for Tasmota. #ESP8266 #ModbusTCP #IoTTutorial, documentation and downloads Complete: Code for Master. 0-DEVEL. Time Proportioned Output Fork. id (Required, ID): The ID to use for code generation, and for reference by dependent components. you linked a tutorial which says. The BME680 takes those sensors to the next step in that it contains a small MOX sensor. Supports network transport (Modbus TCP) and Serial line/RS-485 (Modbus RTU). Nothing to show {{ refName }} default View all branches. Modbus TCP, Modbus UDP and Modbus RTU client/server library for . Allows you to connect your Modbus RTU slaves (such as sensors, energy meters, HVAC devices) to Modbus TCP/UDP masters (such as monitoring systems, home automation systems). You switched accounts on another tab or window. modbus2mqtt - software layer to abstract modbus protocol Configuration To start the modbus2mqtt service you will need a configuration. P Tue Jan 18, 2022 10:17 am. ESP-Modbus. Secure sensor and gateway platform based on ESP8266 and ESP32. After that, we will code an example project which is to collect the voltage (in Volt) data from PMC-220 energy meter using MAX485 module to STM32. On some I2C sensors, like the AHT25, Tasmota might mistake the sensor for another one using the same address. Once Tasmota is flashed on the TYWE3S, just disconnect GND -> GPIO0 (and RST if there is an MCU), and power your device again from USB. The Modbus serial communication protocol is de facto standard protocol widely used to connect industrial electronic devices. 3V DC (5V DC with <20mV ripple advised) Power consumption: 70mA ±10mA (in operation), <4mA (laser and fan sleep mode) Measuring range: 0. Before establishing communication, you need to set up the PLC to communicate using the MODBUS protocol. 1 Ethernet LAN port for internet connection and modbus TCP / IP. At a given time only one stream can be served, but multiple snapshots. - GitHub - emelianov/modbus-esp8266: Most complete. Hi guys, i’m new in PlatformIO forum. In full-step mode: 64/2 = 32 steps to complete one rotation. Supports Modbus TCP Security for ESP8266/ESP32. 3. 0. Modbus TCP server for ESP8266/ESP32 and Ethernet library ; Modbus TCP client for ESP8266/ESP32 and Ethernet library ; MODBUS/TCP Security server (ESP8266). Reload to refresh your session. arduino esp8266 esp32 modbus solar renogy Updated Dec 18, 2022; C++; Tiggilyboo / vanny-hub Star 11. ESP 8266 - 01 Bridge Modbus RTU Slave - Modbus TCP IP Slave. json' rtu_pins =. IMPORTANT: It has been created to present intermittent connection problems which seems to occur on W5500. In the configuration menu, select South Devices to enter the South Devices interface. Code Issues. Industrial Integrations. This can be resolved by disabling the unneeded drivers. Since. An H-bridge is an electronic circuit that switches the polarity of a voltage applied to a load. Crowtail Breakout Boards. client esp8266 tcp server ascii esp32 modbus bridge rs485 linux-client rtu Updated Oct 8, 2023; C++; OpenIBC / Ohsce Star 211. ESP 8266 - 01 Bridge Modbus RTU Slave - Modbus TCP IP Slave. 4 relay 10A output ports. I explain in detail where I have problems: I'm using a 38 PIN ESP32 WROOM 32 as Master in a project I made with Arduino Nano V3. The Stacking Functional MODULES Built for Customized Assembly. Most builds support only the common IR protocols, but tasmota-ir. csv. These circuits are often used in robotics and other applications to allow DC motors to run forwards or backwards. 2 ports 4-20mA ADC 16bit. ESP-Modbus component. 1 Espressif Zigbee Platforms . Modbus library for RTU, ASCII and TCP protocols. Table of contents . Some development boards have the USB-to-UART bridge installed. The detail instruction, code, wiring diagram, video tutorial, line-by-line code explanation are provided to help you quickly get started with ESP32. This is a *perfect* candidate for an ESP32/8266, writing a SCPI translation layer would be a fun project. The device requesting the information is called the Modbus Master and the devices supplying information are Modbus Slave. This has worked well for the past 5 months, but we now need a Raspberry Pi for another project. Is this bridge (RTU client => ESP32 BRIDGE => TCP server) correct for this. The PZEM-016 meter Modbus RTU slave (RS485), meter response. g. io. Steve Mercer answered 3 years ago. Also works with ModBus Bridge <port>, [<ipaddress>] = Start listening to port. For one of my project, I need to implement one ESP32 as a Modbus master and another one as a Modbus slave. Serial Bridge Using ESP8266. BME680 sensor, an environmental I 2 C sensor with temperature, humidity, barometric pressure and gas. Hello, I have a problem with ESP32. static esp_err_t master_init ( mb_communication_info_t * comm_info) {. Hi, I want to be able to update the firmware of all nodes of a wireless mesh network by uploading the new firmware file on a web page. The Modbus protocol allows devices to map data to four types of registers (Holding, Input, Discrete, Coil). There are multiple ways to achieve that. Modbus TCP esp32 WiFi. ESP8266/ESP32 firmware update over Modbus ; ModbusRTU to ModbusTCP bridge Notes ; The offsets for registers are 0-based. The bridge updates the file as nodes come online (using the New Connection callback), and I can route messages/commands to the desired node(s) by. In this protocol, only the master device (in our case, an Arduino) is allowed to initiate communication. modbus-tk for Modbus RTU, read/write multiple registers (fn code 23), returns exception code 1 2 C# MODBUS RTU for REGISTER READINGESP32 has two (32-bit each) Tensilica Xtensa LX6 microprocessors namely, core0 and core1 which makes it a powerful dual-core microcontroller and hence stands apart from its predecessors. {"payload":{"allShortcutsEnabled":false,"fileTree":{"":{"items":[{"name":"case","path":"case","contentType":"directory"},{"name":"gerber","path":"gerber","contentType. The sections below represent typical programming workflow for the slave API which should be called in following order: Modbus Port Initialization - Initialization of Modbus controller interface for the selected port. The first method would be using a hardware device like an IIoT gateway. This commit does not belong to any branch on this repository, and may belong to a fork outside of the repository. Supports network transport (Modbus TCP) and Serial line/RS-485 (Modbus RTU). This is a quickstart to install the micropython-modbus library on a MicroPython. It has to read and write registers. ESP8266 Slave Modbus TCP/IP No libraries. client esp8266 tcp server ascii esp32 modbus bridge rs485 linux-client rtu Updated Feb 14, 2023; C++; OpenIBC / Ohsce Star 211. ESP32 LoRaWAN TTGO To perform the test, we took the chips from TTGO, put on an antenna and battery, and walked out. Discuss code, ask questions &. The main controller supports two power supply. Servo. ArtNet is a royalty-free UDP based protocol to transport DMX lighting control. The Modbus is a master-slave protocol used in industrial automation and also can be used in other areas, such as home automation. pdf. A library that allows your Arduino board to communicate via Modbus protocol, acting as a master, slave or both. Sample modbus server. The ESP32 board has four ADC GPIO pins available (gpio34, gpio35, gpio36,. Additionally, the ESP32 comes with touch-sensitive pins that can be used to. All I want to do is to send some message from master to slave. You signed out in another tab or window. The ESP32 radio hardware is unchanged, but if you prefer just to build an internet bridge you may omit VS1053, LCD display and other internet radio goodies. Most builds support only the common IR protocols, but tasmota. 1 in your browser. Read/write the register outside of supported address space: the Modbus stack returns exception response back with the most significant bit set to 1 in the command field of PDU (0x80 + send command). Having written a sketch to transmit the data in a raw byte form, I can confirm that the ESP32 can be made to work with. 2 Overview (click to enlarge) What You Need ESP32-Ethernet-Kit V1. MAX6956 I/O expander - I²C Bus.