# SPIRAM

Published articles for SPIRAM.

This is one page of public article previews, not the complete archive. Follow Next page to continue. Summaries are not the original full articles.

## Amazon KVS WebRTC SDK for Espressif Chipsets and ESP RainMaker Camera

DevFeed: [Amazon KVS WebRTC SDK for Espressif Chipsets and ESP RainMaker Camera](<https://devfeed.tech/articles/amazon-kvs-webrtc-sdk-for-espressif-chipsets-and-esp-rainmaker-camera-13745.md>)

Original publisher: [Read original article](<https://developer.espressif.com/blog/2026/01/kvs-webrtc-sdk-esp-announcement/>)

Author: John Lee

Published: 2026-01-30T00:00:00Z

Content type: release

Language: en

Sources: [Blog on Developer Portal](<https://devfeed.tech/sources/blog-on-developer-portal.md>)

Topics: [SDKs](<https://devfeed.tech/topics/sdks.md>), [WebRTC](<https://devfeed.tech/topics/webrtc.md>), [Espressif](<https://devfeed.tech/topics/espressif.md>), [ESP-IDF](<https://devfeed.tech/topics/esp-idf.md>), [ESP32](<https://devfeed.tech/topics/esp32.md>), [Esp Rainmaker](<https://devfeed.tech/topics/esp-rainmaker.md>), [amazon](<https://devfeed.tech/topics/amazon.md>), [Microcontroller](<https://devfeed.tech/topics/microcontroller.md>), [Streaming](<https://devfeed.tech/topics/streaming.md>), [Internet of things](<https://devfeed.tech/topics/iot.md>), [Low Latency](<https://devfeed.tech/topics/low-latency.md>)

Tags: [announce](<https://devfeed.tech/tags/announce.md>), [aws](<https://devfeed.tech/tags/aws.md>), [blog](<https://devfeed.tech/tags/blog.md>), [camera](<https://devfeed.tech/tags/camera.md>), [esp-idf](<https://devfeed.tech/tags/esp-idf.md>), [esp-rainmaker](<https://devfeed.tech/tags/esp-rainmaker.md>), [esp32](<https://devfeed.tech/tags/esp32.md>), [esp32p4](<https://devfeed.tech/tags/esp32p4.md>), [espressif](<https://devfeed.tech/tags/espressif.md>), [iot](<https://devfeed.tech/tags/iot.md>), [kvs](<https://devfeed.tech/tags/kvs.md>), [low-latency](<https://devfeed.tech/tags/low-latency.md>), [microcontrollers](<https://devfeed.tech/tags/microcontrollers.md>), [rainmaker](<https://devfeed.tech/tags/rainmaker.md>), [sdk](<https://devfeed.tech/tags/sdk.md>), [spiram](<https://devfeed.tech/tags/spiram.md>), [video](<https://devfeed.tech/tags/video.md>), [video-streaming](<https://devfeed.tech/tags/video-streaming.md>), [webrtc](<https://devfeed.tech/tags/webrtc.md>)

### AI overview

Espressif announces an ESP-IDF port of the Amazon KVS WebRTC SDK for ESP32 microcontrollers. The port supports real-time audio and video streaming and includes memory optimizations, SPIRAM integration, WebRTC Split Mode, and a simplified API. The article also presents ESP RainMaker Camera as a production-ready use case.

### Source excerpt

This article announces the ESP-IDF port of Amazon KVS WebRTC SDK, featuring memory optimizations, split mode power savings, and a simplified API. We also showcase ESP RainMaker Camera as a production-ready use-case built on this SDK.

## Enabling External PSRAM for Zephyr Applications on ESP32 SoCs

DevFeed: [Enabling External PSRAM for Zephyr Applications on ESP32 SoCs](<https://devfeed.tech/articles/enabling-external-psram-for-zephyr-applications-on-esp32-socs-13675.md>)

Original publisher: [Read original article](<https://developer.espressif.com/blog/2024/12/zephyr-how-to-use-psram/>)

Author: John Lee

Published: 2024-12-30T00:00:00Z

Content type: tutorial

Language: en

Sources: [Blog on Developer Portal](<https://devfeed.tech/sources/blog-on-developer-portal.md>)

Topics: [ESP32](<https://devfeed.tech/topics/esp32.md>), [Espressif](<https://devfeed.tech/topics/espressif.md>)

Tags: [article](<https://devfeed.tech/tags/article.md>), [blog](<https://devfeed.tech/tags/blog.md>), [devices](<https://devfeed.tech/tags/devices.md>), [embedded](<https://devfeed.tech/tags/embedded.md>), [esp32](<https://devfeed.tech/tags/esp32.md>), [esp32-s2](<https://devfeed.tech/tags/esp32-s2.md>), [esp32-s3](<https://devfeed.tech/tags/esp32-s3.md>), [espressif](<https://devfeed.tech/tags/espressif.md>), [how-to](<https://devfeed.tech/tags/how-to.md>), [psram](<https://devfeed.tech/tags/psram.md>), [spiram](<https://devfeed.tech/tags/spiram.md>), [zephyr](<https://devfeed.tech/tags/zephyr.md>)

### AI overview

This tutorial explains how to configure Zephyr applications to use external PSRAM on ESP32 modules. It covers dynamic memory allocation, adding PSRAM to the ESP32 memory map, and running code from PSRAM instead of Flash.

### Source excerpt

This article presents ideas and suggestions on different scenarios to use the PSRAM available in some Espressif devices.

## Running Alexa CPP SDK on ESP32

DevFeed: [Running Alexa CPP SDK on ESP32](<https://devfeed.tech/articles/running-alexa-cpp-sdk-on-esp32-13949.md>)

Original publisher: [Read original article](<https://developer.espressif.com/blog/running-alexa-cpp-sdk-on-esp32/>)

Author: John Lee

Published: 2018-05-18T00:00:00Z

Content type: article

Language: en

Sources: [Blog on Developer Portal](<https://devfeed.tech/sources/blog-on-developer-portal.md>)

Topics: [ESP32](<https://devfeed.tech/topics/esp32.md>), [SDKs](<https://devfeed.tech/topics/sdks.md>), [C++](<https://devfeed.tech/topics/c-plus-plus.md>), [software-development](<https://devfeed.tech/topics/software-development.md>)

Tags: [alexa](<https://devfeed.tech/tags/alexa.md>), [blog](<https://devfeed.tech/tags/blog.md>), [cpp](<https://devfeed.tech/tags/cpp.md>), [esp32](<https://devfeed.tech/tags/esp32.md>), [framework](<https://devfeed.tech/tags/framework.md>), [github](<https://devfeed.tech/tags/github.md>), [hardware](<https://devfeed.tech/tags/hardware.md>), [http](<https://devfeed.tech/tags/http.md>), [sdk](<https://devfeed.tech/tags/sdk.md>), [software](<https://devfeed.tech/tags/software.md>), [spiram](<https://devfeed.tech/tags/spiram.md>), [thread](<https://devfeed.tech/tags/thread.md>), [threads](<https://devfeed.tech/tags/threads.md>), [tls](<https://devfeed.tech/tags/tls.md>)

### AI overview

The article describes Espressif's effort to port Amazon's Alexa C++ SDK to the ESP32 and launch a beta preview. It reports that the ESP32 hardware and software framework supported the demanding workload, which used 47 threads, audio buffers, two TLS connections, and substantial external SPI memory.

### Source excerpt

Back in late 2017, when Amazon launched their C++ SDK for Alexa, we thought it would be fun to port the SDK on ESP32. It not only will showcase the powerful development tools and execution environment that ESP32 currently has, but it will also be a great way to run Alexa on ESP32. We recently launched a beta preview of this Alexa on ESP32 on github. The Alexa C++ SDK is targetted for micro-processores, and is quite heavy to be run on micro-controllers.