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ESP32-P4

AES67 audio-over-IP on the ESP32-P4

AES67/RAVENNA is the audio transport behind a lot of broadcast and live-sound infrastructure, and it normally runs on dedicated silicon or Linux boxes. This article is about getting a working, PTP-synchronized AES67 endpoint onto an ESP32-P4 — how the clock sync, the low-latency receive path, and the I2S playout fit together, what the measured latency is, and where the edges are.

Rust smoltcp as an alternative TCP/IP stack for ESP-IDF

A set of ESP-IDF components that run the Rust smoltcp stack as the IPv4/IPv6 data plane, while keeping esp_http_server, esp-tls and esp-mqtt working without source changes. This article explains the linker –wrap shim that makes it compatible, the single-task poll architecture, the throughput I measured on an ESP32-P4 (91.15 Mbit/s on a 100 Mbit link), and the limitations to be aware of.