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More from Embedded & hardware

• AudioBus64-channel audio + I/O multiplexing over a single twisted pair.

  An ESP-IDF component that carries up to 64 channels of 32-bit audio, plus SPI/I2C/GPIO/MIDI tunneling, over a single Cat5 pair using commodity LVDS transceivers. Daisy-chainable, hot-pluggable, deterministic and zero-jitter.

  C ★ 2

• Self-tuning Si5351Self-calibrating multi-output clock generator.

  Si5351A driver and web control surface for the ESP32-P4-Nano, with hardware frequency counting on the PCNT peripheral, three-phase auto-calibration to ~1 ppm, and a background PI controller that compensates crystal thermal drift over hours.

  C

• RomEMUSPI flash & I2C EEPROM emulator with a real-time web UI.

  Turns an ESP32-S3 or ESP32-P4 into a drop-in replacement for common SPI flash and I2C EEPROM chips. Upload images over WiFi or Ethernet, switch slots instantly, and the target boots from PSRAM — no chip flashing required.

  C

• PARLIO Audio TXI2S, TDM, ADAT and S/PDIF — all from one peripheral.

  An ESP32-P4 audio transmitter that creatively repurposes the parallel-IO peripheral as a deep multi-protocol digital audio output. APLL drives the I2S MCLK, the same GPIO is fed back into PARLIO as an external clock, and DMA buffers shift out pre-encoded bit patterns on 16 parallel data lines — synthesizing I2S, TDM-8/16, ADAT and S/PDIF in software.

  C ★ 1

• ADAT for ESP32-P48-channel ADAT lightpipe TX/RX in software.

  ADAT optical I/O on the ESP32-P4: I2S+APLL generates the exact bit clock for transmit, while the RMT peripheral measures pulse durations from a TOSLINK module to recover the receive clock — no external PLL needed.

  C ★ 1

• USB/IP for ESP32-P4Standalone USB/IP server for the ESP32-P4-Nano.

  Plug USB devices into an ESP32-P4 (directly or via a hub) and expose them as native USB devices on remote Linux, Windows or macOS hosts — wire-compatible with the standard usbip and usbip-win2 clients.

  C ★ 1