Why Choose the ESP32-C6 for Connected Products?

The ESP32-C6 is a low-consumption wireless system-on-chip with a 32-bit RISC-V processor at its core. This system encompasses a 2.4 GHz Wi-Fi 6, Bluetooth Low Energy, and an IEEE 802.15.4 radio feature in one solution platform. Its 802.15.4 capability is fully compatible with Thread 1.3 and Zigbee 3.0.

This combination gives product teams considerable flexibility. Wi-Fi can provide a direct connection to a local network or cloud platform.

Bluetooth LE can simplify device commissioning and nearby control. Thread can create a low-power IP-based mesh, while Zigbee can support established home and building automation installations.

The ESP32-C6 has also various requisite hardware interfaces such as GPIO, SPI, UART, I2C, I2S, PWM, ADC, USB Serial/JTAG, and TWAI. Therefore, It can connect with many devices such as relays, environmental sensors, display, measuring instruments, motors, security hardware, etc.

Our ESP32-C6 Development Services

Matter

Matter Device Development

Matter makes it possible for compatible devices to work across major smart-home ecosystems using a common, IP-based application standard. However, successful Matter development involves much more than adding a connectivity library.

We develop Matter-compatible switches, plugs, lights, sensors, controllers, locks, thermostats, bridges, and other connected products.

Our job can involve selecting devices types, implementing endpoints and clusters, managing attributes, commands, events, commissioning flows, onboarding using QR codes, managing access control systems, and storing data persistently.

We also perform device testing across ecosystems that are relevant to the project, such as Apple Home, Google Home, Amazon Alexa, or Home Assistant, depending on the product.

Thread

Matter over Thread Development

Thread is designed for secure, low-power mesh networking. Unlike conventional non-IP mesh protocols, Thread uses IPv6, allowing Matter messages to travel across an IP-based network without a proprietary application gateway.

The ESP32-C6 can be used for Matter-over-Thread end devices such as contact sensors, occupancy sensors, buttons, thermostats, lighting products, and battery-powered controls.

We configure the required OpenThread roles, commissioning behaviour, network credentials, sleepy-device operation, and communication with a Thread Border Router.

In regard to products powered by batteries, we take into account wake periods, sensor measurements, radio transmission, message resendings, and terminals outages and do not simply rely on a primitive deep sleep example. All of the above can decide whether the product will function for several weeks or for several years using a single battery.

Zigbee

Zigbee 3.0 Product Development

Zigbee technology is still utilized in areas such as smart lighting, energy management, security, hospitality, and building automation. Manufacturers must either enhance the Zigbee reach needed for their products or develop new devices that can support a Matter-related strategy in the future.

Our team develops Zigbee coordinators, routers, and end devices using the ESP32-C6. We implement appropriate device profiles, endpoints, clusters, reporting intervals, binding, groups, scenes, network joining, rejoining, and factory-reset behaviour.

We can develop standard Zigbee functionality or manufacturer-specific features when the intended coordinator supports them. Testing includes network loss, coordinator replacement, parent changes, dense device deployments, and operation in environments where Wi-Fi and other 2.4 GHz equipment are active.

Bridge

Matter-to-Zigbee Bridge Development

A Matter bridge can make existing Zigbee products visible to Matter controllers without requiring every deployed device to be replaced. This is valuable for lighting systems, apartment installations, hotels, and commercial buildings with a substantial installed base of Zigbee equipment.

We design bridge firmware capable of identifying the Zigbee compatible devices, linking their functions to the proper Matter endpoints, coordinating device state and managing messages in both directions. Given the differences in the data models, it is critical to pay proper attention during the mapping process.

While a generic on-off device is easy to handle, the operating systems must be handled with care if dealing with scenes, proprietary parameters, battery information and other non-standard readings.

ESP32-C6 Hardware and PCB Engineering

Protocol support is only useful when the physical product has dependable radio performance. Our hardware engineering services cover component selection, schematics, power architecture, PCB layout, antenna placement, module selection, connector design, sensor interfaces, relay drivers, and manufacturing documentation.

Depending on enclosure size, range requirements, and installation conditions, we can use an ESP32-C6 module with an integrated PCB antenna or an external antenna connector. We consider antenna clearance, ground layout, noisy switching components, enclosure materials, and nearby metal parts early in the design.

Firmware Architecture and Security

Connected-device firmware must remain stable through network interruptions, invalid messages, interrupted updates, and years of field use. We structure firmware into maintainable components for connectivity, device drivers, application logic, storage, diagnostics, and update management.

Security can include secure boot, flash encryption, signed firmware, protected device credentials, authenticated communication, certificate handling, secure provisioning, anti-rollback controls, and controlled factory reset procedures. For Matter products, we also plan the secure injection and management of device-specific manufacturing information.

Project We Delivered: Multiprotocol Smart Room Controller

Multiprotocol Smart Room Controller Hardware
1

Project Background

A building-automation company approached us to develop a compact room controller for apartments, serviced offices, and small hotels. The client already supplied Zigbee sensors and switches, but its newer customers wanted Matter compatibility and better integration with consumer smart-home platforms.

Creating different circuit boards solely for the Zigbee and Matter systems would have added various costs related to inventory, testing, and certifications. Thus, we chose to create a new ESP32-C6 hardware platform on which multiple firmware configurations can allow installing Zigbee as well as Matter-over-Thread systems.

2

Engineering the Hardware Platform

The controller needed to operate two relay outputs, read a temperature and humidity sensor, accept inputs from wall switches, and display equipment status through a small RGB indicator. It also had to fit inside an enclosure positioned close to mains wiring, which made power design and radio placement important.

We created the schematic and PCB around an ESP32-C6 module and added isolated input circuitry, relay drivers, a regulated power stage, service pads, and a physical reset and commissioning button. The antenna area was kept away from the relays and high-voltage section. We also added diagnostic points so production technicians could test power rails, inputs, outputs, and wireless operation without opening the finished unit repeatedly.

3

Matter, Thread and Zigbee Firmware

For new installations, we developed a Matter-over-Thread firmware profile. The controller could be commissioned through a standard Matter setup flow and represented its relays, environmental readings, and occupancy state through appropriate endpoints and clusters.

We implemented network recovery, settings storage, factory reset, and over-the-air (OTA) firmware update handling. Special attention was paid to retaining the correct relay state after a restart and preventing unintended switching during commissioning.

For the client's existing projects, we created a Zigbee 3.0 firmware profile using the same hardware. It supported joining and rejoining, attribute reporting, groups, configurable reporting intervals, and commands from the client's coordinator.

We also built a Matter bridge proof of concept. In this configuration, the ESP32-C6 communicated with selected Zigbee room devices and exposed their supported functionality to a Matter controller over Wi-Fi. This allowed the client to evaluate a gradual migration strategy rather than replacing its installed Zigbee devices immediately.

4

Testing and Result

We tested commissioning, repeated power cycling, network loss, controller restart, relay operation under load, sensor reporting, firmware updates, and factory-reset behaviour.

Coexistence testing was performed in a busy 2.4 GHz environment to identify channel and enclosure-related issues before the pilot build.

The end goal of the project provided the customer with a generic hardware layout that could be reused for many different product iterations. It enabled cutting down unnecessary engineering processes, maintaining compatibility with existing hardware using Zigbee standards, and creating a feasible path to Matter and Thread products.

Testing and Certification Preparation

Wireless interoperability cannot be confirmed by checking only whether a device connects once. We prepare test plans covering commissioning, command response, attribute reporting, network recovery, multi-admin use where applicable, software updates, reset behaviour, and long-duration operation.

Our engineers can help prepare products for relevant Matter, Thread, Zigbee, Bluetooth, radio, safety, and regional compliance processes. Support may include firmware configuration, documentation, test builds, issue investigation, and changes required after pre-certification or laboratory testing.

Mobile App, Gateway and Cloud Development

Some ESP32-C6 products require more than their capability for local ecosystem control. We design companion mobile applications for Android and iOS, administrative web sites, cloud APIs, device registries, alerts, user management, telemetry dashboards, and remote support tools.

Where cloud connectivity is required, we design it carefully so core local functions do not become dependent on an internet connection. Matter and Thread products should retain reliable local behaviour even when an external service is temporarily unavailable.

Applications We Develop

Our ESP32-C6 development experience can be applied to:

Smart switches, dimmers, plugs, and lighting controllers Door locks, access-control products, and security sensors Thermostats, HVAC controllers, and air-quality monitors Occupancy, motion, contact, temperature, and leak sensors Energy meters and load-management devices Smart blinds, curtains, fans, and motor controllers Zigbee gateways and Matter bridge products Hotel, apartment, office, and building-automation systems Connected appliances and industrial monitoring equipment

From Prototype to Production

A proof of concept answers whether an idea can work. Product engineering must also answer whether it can be manufactured, installed, updated, supported, and operated securely.

We help in creation of development kits, custom prototypes, updates of circuit boards, fixing firmware problems, making fixtures for tests, production of firmware, providing identity to devices, optimizing the bill of materials, small scale production, and figuring out the problems during production scaling. This ensures that the first prototype and last production unit are linked.

Work With an ESP32-C6 Development Team

No matter if you're developing a Matter-Thread product from scratch, updating a Zigbee compatible device family, or designing a bridge to connect old devices, we can provide assistance at all stages of the engineering process.

At our company, we can offer all necessary engineering and production experience for building firmware, electronics, wireless communication and devices of all types. Contact us to get a detailed development plan for your ESP32-C6 Matter, Thread or Zigbee project specifying its technical characteristics and commercial features.

Abhinav Akula
Abhinav
DevOps Engineer and 3× Microsoft Azure Certified professional specializing in Azure cloud solutions, migration, deployment automation, and multi-cloud environments. He holds Microsoft certifications as an Azure Developer Associate and Azure Solutions Architect Expert, with expertise in building scalable, secure, and reliable cloud infrastructure.

Microsoft Certified: Azure Developer Associate

Microsoft Certified: Azure Solutions Architect Expert