Espressif has announced that the ESP32-C6 now supports Amazon’s Alexa Connect Kit (ACK) SDK for Matter, giving device makers a new qualified Espressif platform for building Matter-compatible, Alexa-enabled smart home products. The announcement was published by Espressif on April 10, 2026.
This is a meaningful update because it pushes the ESP32-C6 further into serious smart home product development, not just hobby projects. According to Espressif, adding ESP32-C6 expands the ACK for Matter silicon options already available to manufacturers and enables more advanced product designs with higher processing capability, larger memory footprint, multi-protocol wireless connectivity, and strong device security.
For anyone not familiar with it, the ACK SDK for Matter is Amazon’s platform for helping manufacturers build Matter devices that work with Alexa and other Matter-certified ecosystems. Amazon says the ACK SDK for Matter lets developers add local Matter connectivity to a device while designing hardware around an Amazon-qualified SoC for production. Amazon also notes that Matter devices built this way can be controlled locally by Alexa and other Matter-certified smart home assistants, which can improve reliability and reduce latency.
What makes this especially interesting is the chip itself. The ESP32-C6 is Espressif’s first Wi-Fi 6 SoC and combines 2.4 GHz Wi-Fi 6, Bluetooth 5 LE, and IEEE 802.15.4, which means it is already a strong fit for Matter, Thread, and Zigbee projects. Espressif says the chip includes a high-performance 32-bit RISC-V core up to 160 MHz, a low-power RISC-V core up to 20 MHz, 320 KB ROM, 512 KB SRAM, and support for external flash.
That matters because ACK support is no longer limited to smaller or simpler product types. Espressif says Amazon previously supported ACK for Matter on the ESP32-C3, and with the addition of the ESP32-C6, the qualified ACK for Matter portfolio now spans multiple Espressif platforms. In plain English, that gives manufacturers a broader choice between lower-cost designs and more feature-rich products depending on what they are building.
The practical benefit is reduced development overhead. Espressif says ACK combines Amazon’s managed services with a Matter-ready device framework, while handling cloud connectivity, security, firmware, and Alexa integration. That means product teams can spend more time on the actual device and less time building supporting infrastructure around it.
Amazon has been pushing that value proposition for a while. In its ACK SDK for Matter overview, Amazon says manufacturers can get the interoperability benefits of Matter while also gaining cloud-connected features such as over-the-air updates, logs, and metrics, without having to build and run their own cloud services or even create an Alexa skill. Amazon also says ACK can help enable Frustration-Free Setup for Matter, aiming for a simpler customer onboarding experience.
For the ESP32 audience, the real takeaway is that this makes the ESP32-C6 even more attractive for commercial smart home designs. The chip already had the radio combination you would want for modern connected devices, and now it gets an easier route into Alexa-enabled Matter products for companies that want faster time to market and less backend complexity.
This also fits the broader direction Espressif has been taking with Matter. Espressif’s documentation portal lists an ESP-Matter Programming Guide for ESP32-C6 with a release date of April 17, 2026, showing that the company is continuing to invest in current Matter development resources around the chip.
The short version is simple: ESP32-C6 now sits in a stronger position for next-generation smart home devices. Between Wi-Fi 6, Thread/Zigbee capability, Matter support, and now ACK SDK for Matter support, it is turning into one of the most complete ESP32-family options for serious connected products rather than just maker experiments. That is exactly the kind of update worth watching if your site wants to cover where the ESP32 ecosystem is actually heading.
