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What “integrated LVGL and HA” means
LVGL is an open-source embedded graphics library for building interfaces with widgets, styling, and animation on supported microcontrollers and processors. It supplies the on-device interface; it is not itself a relay controller or a Home Assistant integration. LVGL documentation
ESPHome provides a way to connect those pieces. Its LVGL cookbook demonstrates an LVGL switch operating a local light and a toggle button representing a remote Home Assistant light. That illustrates two distinct paths: a screen control can operate a device component on the ESPHome node, or it can call an action in Home Assistant.
How to build the controller with ESPHome
1. Choose display-capable ESP32 hardware
The ESPHome LVGL guide describes using ESP32 hardware with a supported display. It says any ESP32 variant may be used and recommends an ESP32-S3 with PSRAM for larger user interfaces. Display examples include ILI9341, ST7789, and ST7796; all-in-one options mentioned include CYD and WT32-SC01. Confirm that the exact board and display are supported by the configuration you intend to use.
#1 Best Overall
- Industrial 8-Channel ESP32-S3 WiFi Relay Module, based on ESP32-S3 microcontroller, built-in 32-bit LX7 dual-core processor, up to 240MHz, integrated 2.4GHz Wi-Fi and Bluetooth LE dual-mode wireless communication, supports Arduino IDE
- Industrial 8-Ch WiFi Network Relay Module, onboard digital input, RS485, and ethernet port interfaces. Built-in multiple isolation protection circuits such as power isolation and optocoupler isolation, more safe, stable and reliable
- Supports RS485 and Bluetooth / WIFi Remote Control, onboard 8-ch relays and 8-ch digital inputs, contact rating of the onboard relay up to 10A 250V AC / 30V DC, directly controlling 220VAC home appliances, or devices below 30V DC
- Digital Input, supports passive (dry contact) and active (wet contact) digital input, with bi-directional optocoupler isolation
- Built-in PoE module, providing both network connection and power supply in one cable
2. Add the LVGL interface and control behavior
Design the screen around the actions the controller needs: for example, a toggle for a relay and status indicators for relevant HA entities. ESPHome’s cookbook shows the general pattern of binding LVGL widgets to local components or representing remote HA entities. For a widget that calls a Home Assistant action, ESPHome says the action-call setting must be explicitly enabled on the device. Follow the cookbook’s configuration for the relevant action rather than assuming remote calls are enabled by default.
3. Select relay hardware separately
The ESPHome Devices catalog documents an ESP32 relay board with eight relay outputs exposed as Home Assistant switches. Its listing does not describe an LVGL display on the board, so it is evidence for a relay component—not for a single integrated display-and-relay product. A build may use separate display and relay hardware, depending on the design.
Rank #2
- Versatile Quad-Channel LED Control: This controller features 4 independent outputs for simultaneous control of multiple LED strips, supporting popular types like WS2811, WS2812, SK6812, and WS2815. It unlocks a vast library of DIY dynamic lighting effects through the powerful WLED software
- Dual Network Connectivity & Smart Home Ready: It offers flexible installation with both Ethernet for a stable wired connection and WiFi for wireless convenience
- Robust Build with Integrated Protection: Designed for reliability, it includes key safety features such as a 20A pluggable fuse for overcurrent protection and an energy-saving relay to minimize power consumption in standby mode
- Audio-Reactive & UART Download: The built-in microphone enables lights to dynamically sync with ambient sound or music. The accessible UART interface allows for Updating WLED Firmware
- Easy Setup with Powerful Segmentation: Operating on a wide DC 5-24V input, it simplifies installation. The WLED software provides precise segment control, allowing you to create different lighting scenes and effects on various sections of a single LED strip
4. Decide what must work without HA or the network
Separate controls that should act locally from controls that depend on Home Assistant. The ESPHome cookbook’s local-light example shows a widget wired to a local component, while its remote-light example uses an HA entity and action. Decide which relay actions must remain available during an HA or network outage, then configure and verify those paths accordingly.
Related products are not confirmed exact matches
| Example | What its listing establishes | What it does not establish |
|---|---|---|
| elvinhome CTRL ONE | The ESPHome Devices listing describes an ESP32-C6 wireless ePaper room controller with a grid-and-widget LVGL interface that can use HA entities. Its rear add-on connector can support relay output among other add-ons. | It is not documented there as an integrated general-purpose relay controller with built-in relay outputs. |
| HomeMaster MiniPLC | The ESPHome Devices listing describes an ESP32-WROOM-32U controller with Wi-Fi, HA support via ESPHome, six SPDT relay outputs, and a 128×64 OLED with buttons. | The listing does not establish LVGL support for its display. |
| ESP32 Relay Board x8 | The catalog entry documents eight relay outputs exposed as HA switches. | The entry does not describe an integrated LVGL display. |
These examples cover overlapping parts of the requested feature set, but their listings do not confirm a single device with all of them. Treat an exact-model claim as unverified unless the manufacturer’s documentation explicitly confirms the display’s LVGL support, relay outputs, wireless connection, and HA integration.
Rank #3
- Based on ESP32-S3 microcontroller with Xtensa 32-bit LX7 dual-core processor, capable of running at 240 MHz
- Integrated 2.4GHz Wi-Fi and Bluetooth LE dual-mode wireless communication, with superior RF performance. High quality relay, contact rating: ≤10A 250VAC/30VDC
- Onboard isolated RS485 interface, for connecting to various RS485 Modbus industrial modules or sensors
- Onboard 40PIN header compatible with some Raspberry Pi Pico HAT, for expanding more functions such as RTC / CAN / RS232 / LoRa / sensor, etc.
- Onboard USB Type-C port for power supply, firmware downloading and debugging. Onboard power supply screw terminal, supports 7~36V wide voltage input, suitable for industrial applications
What to verify before choosing hardware
The cited product listings do not provide a complete apples-to-apples specification set. Check the manufacturer documentation for each candidate rather than inferring missing details from a product name or a general ESPHome listing.
Quick Recap
Best Value
- Industrial 6-Ch ESP32-S3 W-i-F--i Relay Module, Supports W-i-F--i / Blue--too-th / RS485 control, Onboard RS485 / Pico HAT interfaces, Built-in protection circuits such as power isolation and optocoupler isolation, Safe & Stable & Reliable
- Based on ESP32-S3 microcontroller with Xtensa 32-bit LX7 dual-core processor, capable of running at 240 MHz. Integrated 2.4 G H z W-i-F--i and Blue-too-th LE dual-mode wire-less communication, with superior RF performance.
- Onboard isolated RS485 interface, for connecting to various RS485 Modbus industrial modules or sensors. Onboard 40PIN header compatible with some Raspberry Pi Pico HAT, for expanding more functions such as RTC / CAN / RS232 / LoRa / sensor, etc.
- Onboard USB Type-C port for power supply, firmware downloading and debugging. Onboard power supply screw terminal, supports 7~36V wide voltage input, suitable for industrial applications.
- High quality 6-Ch relays, supports RS485 and Blue-to-oth / W-i-F--iremote control.
Rank #4
- AC-DC switching power supply module, output switch signals, the power supply mode supports AC220V/DC5-30V
- ESP32-WROOM-32E WiFi module, large capacity 4M byte flash
- ESP32 32E WIFI relay module WiFi module RST reset button and a programmable button
- The I/O port of the WIFI module and the UART program download port are led out for secondary development
- ESP32 wireless WIFI 4 channel relay module WIFI module with 1 programmable LED and relay indicator onboard
- Relay details: number of outputs, contact type, rated switching voltage and current, and isolation information.
- Display and LVGL: whether LVGL is supported on the integrated display, not merely whether the product has a screen.
- HA connection: whether integration uses ESPHome and whether the desired entities or actions can be controlled from the screen.
- Wireless method: whether the device uses Wi-Fi, Zigbee, Thread, or another protocol.
- Offline behavior: which controls continue to operate if Home Assistant or the network is unavailable.
- Installation and power: mounting format and power requirements for the controller and relay hardware.
Product prices and availability are accurate as of the date/time indicated and are subject to change. Any price and availability information displayed on Amazon at the time of purchase will apply.
