--- title: "How Does W5500 Connect the KinCony AIO Hybrid to a Mixed Home Automation System?" url: "https://maker.wiznet.io/Benjamin/resellers/how-does-w5500-connect-the-kincony-aio-hybrid-to-a-mixed-home-automation-system/" markdown_url: "https://maker.wiznet.io/Benjamin/resellers/how-does-w5500-connect-the-kincony-aio-hybrid-to-a-mixed-home-automation-system/md" type: "VAR: Value-Added Reseller Products" author: "KinCony Electronics" author_url: "https://shop.kincony.com/products/esp32s3-all-in-one-smart-controller-aio-hybrid" editor: "WIZnet" editor_url: "https://maker.wiznet.io/" original_author: "KinCony Electronics" original_url: "https://shop.kincony.com/products/esp32s3-all-in-one-smart-controller-aio-hybrid" published: "2026-11-09" language: "en" tags: ["W5500", "Home Assistant", "MQTT", "Modbus"] hardware: ["WIZnet W5500"] likes: 0 views: 7 comments: 0 source: "WIZnet Makers (https://maker.wiznet.io/)" --- # How Does W5500 Connect the KinCony AIO Hybrid to a Mixed Home Automation System? > KinCony AIO Hybrid combines W5500 Ethernet, five manual relay overrides, analog I/O and Tuya interfaces, with current KCS firmware and ESPHome examples. Original author: KinCony Electronics (source: https://shop.kincony.com/products/esp32s3-all-in-one-smart-controller-aio-hybrid) ## Components - **WIZnet W5500** x 1: Standard onboard SPI Ethernet controller in the KinCony AIO Hybrid, confirmed by the vendor pin map and ESPHome example. ([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/)) ## Documents and links - [Official AIO Hybrid shop](https://shop.kincony.com/products/esp32s3-all-in-one-smart-controller-aio-hybrid) (code): Current bundles, 12V/24V variants, price and order availability. - [AIO Hybrid specifications](https://www.kincony.com/esp32s3-all-in-one-smart-controller-aio-hybrid.html) (schematics): Manufacturer hardware and software overview; September 2025 launch. - [Vendor W5500 pin map and installation discussion](https://www.kincony.com/forum/showthread.php?tid=8532): Exact W5500/ADC pins and a customer's cabinet-clearance experience. - [ESPHome AIO Hybrid configuration](https://devices.esphome.io/devices/kincony-aio/): W5500 networking, relay/input mapping, DAC and ADC configuration. - [KCS v3.27.4 firmware, November 2, 2026](https://www.kincony.com/forum/showthread.php?tid=9929): Exact AIO Hybrid binary and shared release notes including current-loop fixes. - [KCS v3 setup and system guide](https://www.kincony.com/how-to-use-kcsv3-firmware-esp32-board.html): MQTT discovery, local rules and AIO Hybrid plus TR sensor expansion. - [October 2026 temperature-sensor example](https://www.kincony.com/forum/showthread.php?tid=9870): Vendor 4–20 mA temperature setup and KCS readout. - [Arduino W5500 TCP-server example](https://www.kincony.com/forum/showthread.php?tid=8542): Alternative Ethernet.h socket-based example on the AIO Hybrid. - [Earlier KC868-AIO schematic](https://www.kincony.com/download/KC868-AIO-schematic.pdf): Different prior hardware using LAN8720A; distinguishes it from AIO Hybrid. - [KinCony company information](https://www.kincony.com/about-us): Vendor background and official contact location. - [Shipping policy](https://shop.kincony.com/policies/shipping-policy): Dispatch and delivery estimates; destination-dependent charges. - [Return policy](https://shop.kincony.com/policies/refund-policy): Eligibility, time limits and return-shipping conditions. - [Source photographs and configuration](https://github.com/esphome/esphome-devices/tree/2a73998d5ad73d1c46f0952ff30eeb8511adb042/src/docs/devices/KinCony-AIO): Original unchanged product photograph and board illustration credited to KinCony / ESPHome Devices. - [Source image repository license](https://github.com/esphome/esphome-devices/blob/2a73998d5ad73d1c46f0952ff30eeb8511adb042/LICENSE): GPL-3.0 applies to the reused repository assets; the commercial product is not claimed open-source hardware. ## Article ## One controller for several kinds of home equipment The KinCony AIO Hybrid is a commercial DIN-rail controller that combines relay switching, analog sensing, dimming signals and several home-automation interfaces. Its ESP32-S3 runs the control software, while an onboard **WIZnet W5500 provides Ethernet** for local network access. KinCony, an electronics manufacturer based in Hangzhou, China, presents its products around “Home Automation DIY” and supports both its own firmware and developer-configurable alternatives. The hardware launched in September 2025 and remains available from the official shop. Its support materials are still developing: the November 2, 2026 KCS v3.27.4 release includes an AIO Hybrid binary, and an October 15 application note demonstrates a current-loop temperature sensor. This makes the current story an established product with recent firmware and application documentation. ![The KinCony AIO Hybrid product photograph shows its metal housing, manual relay switches, removable terminals, display and Ethernet connection.](https://maker.wiznet.io/upload/ckeditor5/298518ae2b2147099e832a972b07f901.jpg) *KinCony product photograph reproduced unchanged from the GPL-3.0 ESPHome Devices repository. External sensors and controlled equipment are separate from the controller.* ## What is integrated into the AIO Hybrid? The controller provides five removable OMRON relays with manual override switches, twelve isolated dry-contact inputs, four analog inputs and four 0–10 V outputs. A dry-contact input detects a switch closing without requiring that switch to generate a signal voltage. The analog inputs are divided into **two 0–5 V channels and two 4–20 mA channels**, as confirmed by the vendor pin map and labelled board image. A 4–20 mA sensor communicates a measurement as a changing current, while a 0–10 V output gives compatible equipment a variable control signal. These interfaces serve different jobs from the relays: a relay switches a circuit, whereas a voltage output can request a dimming level or speed from a suitable external driver. The external load and its power supply still need to match the chosen interface. ![The original KinCony board illustration identifies five removable relays, manual switches, analog inputs and outputs, ESP32-S3, Ethernet, Tuya modules and RS485 terminals.](https://maker.wiznet.io/upload/ckeditor5/2a67d165656e44999fc6fb1e099d8804.jpg) *Original labelled board illustration from the ESPHome Devices repository, GPL-3.0. The connected LED strips and other peripherals illustrate possible connections rather than included accessories.* RS485, Tuya Wi-Fi and Zigbee modules, infrared interfaces and 433 MHz radio functions extend the controller beyond wired switches. An OLED display, SD-card socket and DS3231 real-time clock support local operation and status information. The product is a mixed-interface controller: its value lies in combining several kinds of connection in one enclosure rather than maximizing a single channel count. The five manual switches are also a practical part of the design. KinCony describes them as a way to operate the relays independently of software commands. They provide local intervention at the cabinet, with the appropriate power supply present; they should not be treated as an independently certified safety function or a guarantee of operation during a power failure. ## Where does W5500 sit in the control path? The vendor's own pin definition names W5500 and assigns SPI clock, MOSI, MISO and chip-select to GPIO42, GPIO43, GPIO44 and GPIO41. Interrupt and reset use GPIO2 and GPIO1. The same mapping appears in the published ESPHome configuration, connecting the physical Ethernet interface to the ESP32-S3 application. In that configuration, a contact or analog measurement reaches an input component, ESP32-S3 firmware interprets it, and the network interface carries the resulting state to Home Assistant. A command travels back through the application to the appropriate relay or output component. **W5500 supplies the wired LAN path; the ESP32-S3 implements the automation and peripheral handling.** ![An original diagram separates local contacts and sensors, ESP32-S3 control logic, W5500 Ethernet and the Home Assistant network, with RS485 and Tuya connections shown as additional interfaces.](https://maker.wiznet.io/upload/ckeditor5/59d478677e6247b5992cce735993a863.png) *Generated technical diagram: the ESPHome path uses the ESP32-S3 software network stack with W5500 Ethernet. KCS offers a different set of configuration and protocol options.* This software choice affects how the chip's capabilities are used. The documented ESPHome example runs through ESP-IDF networking, so W5500 hardware TCP/IP offload should not be assumed for that build. KinCony separately publishes an Arduino `Ethernet.h` TCP-server example that uses the W5500 socket interface, illustrating another development route on the same hardware. ## Choose a firmware path before choosing integrations KCS is KinCony's downloadable firmware with a browser-based setup interface. Its guide covers local rules, input-to-output mapping, MQTT discovery for Home Assistant, HTTP, TCP and RS485 protocols. MQTT passes device messages through a broker, while discovery supplies Home Assistant with the information needed to create the corresponding entities. The ESPHome route provides a more explicit configuration to edit. The AIO Hybrid example defines the W5500 interface, five relay outputs through an I/O expander, twelve contact inputs, four MCP4728 DAC channels and the analog measurements. It also shows infrared transmission and display configuration, giving a developer specific mappings instead of only a list of advertised interfaces. These routes are alternatives with different setup responsibilities. The product page describes KCS, ESPHome, Tasmota and custom Arduino development, but a feature available in one firmware does not automatically appear in every other build. In particular, the published ESPHome example is a starting configuration, while KCS documents its own Tuya and local-rule workflows. ## What changed in the recent support material? The November 2 KCS v3.27.4 download thread lists the exact `KCS_AIO_HYBRID_V3.27.4.zip` package. Its shared release notes include fixes for ADC current sampling and 4–20 mA conversion, improved infrared learning and storage, and automatic detection of supported I/O expanders. The package is downloadable firmware; the release does not imply that existing boards all changed their physical components. The October 15 AIO Hybrid temperature example makes one application more concrete. KinCony shows a current-loop temperature sensor connected to the controller, a KCS dialog for naming the channel and selecting units and endpoint values, and the resulting temperature display. The lesson is the path from an electrical signal to a useful engineering value, rather than a published accuracy result. For an installer, this matters because a sensor input is only the first step. The system also needs a sensible measurement range, units, reporting behavior and a destination for the value. The product's firmware documentation addresses those steps, helping connect board-level interfaces to a usable home-automation setup. ## How does it fit into the KinCony system? The older KC868-AIO and this AIO Hybrid have similar names but different architectures. The older board uses an ESP32 and LAN8720A Ethernet PHY with a large bank of MOSFET outputs. The Hybrid moves to ESP32-S3 and W5500 and combines removable relays, manual intervention, analog control and Tuya-related interfaces in a different arrangement. The system can also extend beyond the cabinet. KinCony's KCS guide explicitly illustrates an AIO Hybrid connected over RS485 to a TR module serving three DS18B20 temperature sensors. In that arrangement, the TR brings remote sensor information into the controller; the AIO Hybrid's Ethernet link connects the controller to the LAN. The TR and sensors are separate products, not part of the basic AIO purchase. ![A system diagram places the AIO Hybrid between local relays and sensors, an optional TR temperature-sensor expansion over RS485, and the Ethernet home-automation network.](https://maker.wiznet.io/upload/ckeditor5/93327adaf9774616ab0bf1bb90ea8ae1.png) *Generated technical diagram: an example from the KCS guide connects AIO Hybrid, a separate TR module and three DS18B20 sensors. W5500 is the Ethernet interface on the AIO Hybrid.* For a different balance of inputs and outputs, [KinCony CO16 on WIZnet Maker](https://maker.wiznet.io/Benjamin/resellers/how-does-kincony-co16-connect-analog-sensors-to-home-assistant-with-w5500/) focuses on a larger analog-sensor installation. AIO Hybrid is the mixed-control option explored here, with manual relay access and several radio and serial interfaces beside Ethernet. ## Vendor, availability, and price On November 9, 2026, the official shop listed Bundle A, the AIO Hybrid controller, at **US$160**, and Bundle B, adding a USB-C cable and power supply, at **US$170**. Both bundles offered DC12V and DC24V variants marked available in the shop's variant data. Select the version that matches the intended supply and relay configuration; shipping and destination charges require checking for the delivery address. The shop's shipping policy gives a usual dispatch estimate of two to three working days and an approximate delivery estimate of ten to twenty days. Its return policy allows eligible unused goods in original packaging within thirty days, with conditions and customer-paid return postage. Product and support enquiries go to **web@kincony.com**, and the vendor maintains a model-specific forum. Cabinet fit deserves attention alongside electrical specifications. In a May 2026 forum discussion, one AIO Hybrid user reported that the front opening of a particular DIN enclosure obstructed the manual switches. This is one installation report, but it gives a useful selection check: allow access to the switches, terminals and removable relays when planning the enclosure. ## Frequently asked questions **Q. Is W5500 an optional add-on?** No. W5500 is part of the AIO Hybrid board and is identified in KinCony's pin map and configuration examples. **Q. How many analog inputs are available?** There are four in total: A1 and A2 accept 0–5 V, while A3 and A4 are the 4–20 mA channels. **Q. Is this the same product as KC868-AIO?** No. The older controller has a different MCU, Ethernet implementation and output architecture; AIO Hybrid combines W5500 with removable relays and mixed control interfaces. **Q. Can it use Home Assistant without Tuya?** KinCony publishes a local ESPHome configuration, and KCS also documents MQTT discovery. The required setup depends on the selected firmware. **Q. Is AIO Hybrid new hardware from November 2026?** The hardware launched in September 2025. The current update is the November 2, 2026 KCS firmware, accompanied by recent application documentation. --- Source: https://maker.wiznet.io/Benjamin/resellers/how-does-w5500-connect-the-kincony-aio-hybrid-to-a-mixed-home-automation-system/