Tag: ESP32-Audio
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Amped-ESP32-Plus: muffled sound on boards shipped 15 Oct – 1 Nov 2026
A batch of Amped-ESP32-Plus boards was assembled with the wrong DAC output filter capacitors, making the sound muffled and quiet. Here is how to check your board, what I will do about it, and how to fix it yourself.
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Ethernet-enabled Sendspin configs on the web installer
Both esp32-audio-dock firmware web installer and esparagus boards web installer got a slightly controversial update today: Ethernet-enabled configs. Let’s start from the basics. The factory image right now is three images for almost every board: (1) default image that relies on WiFi, (2) same but with OLED screen enabled, and (3) Ethernet-enabled image that has…
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Louder-ESP32-Pro is now available at Elecrow
The Louder-ESP32-Pro is now available for purchase at Elecrow, my production and distribution partner. It comes only in an ESP32-S3-based variant. Optional power adapters and TFT screens are coming soon as well. On this occasion, factory production for Amped-ESP32-Plus boards was completed as well, so all four variants are available for purchase. EU stock is…
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Screen-enabled Sendspin factory images
Until recently, all Sendspin factory images available at the web installer for Esparagus boards and ESP32 development boards had a single Sendspin image with both Ethernet and OLED/TFT screen disabled by default, since most of the customers don’t have those options installed, and configuring them in that case would create pointless overhead of trying to…
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Stock update: Louder-ESP32-Mini and HiFi-Esaparagus
Hey folks, I just received a large box from my Chinese Santa. Louder-ESP32-Minis are in stock now in the EU store (Tindie, Lectronz). Also, both variants of HiFi Esapragus are refilled (Tindie, Lectronz).
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New onboarding experience for ESP32 audio boards
Following last week’s update, ESP32-based audio development boards receive a new firmware web installer It works in a very similar way; you get Sendspin firmware as a default recommended choice, but both 16-bit and 32-bit squeezelite-esp32 variants are available as well. Speaking of Sendspin, once you have firmware installed, you’ll onboard wifi using the same…
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ESPHome component for HUSB238A PD-trigger chip
I just published a custom ESPHome component for a Hynetek HUSB238A USB-PD trigger chip, which is part of the 55-mm version of the Louder-ESP32-Mini board. Originally, when I prepared a design for this board, I selected this chip to support both “dumb” mode, where it would simply request the required power profile on boot, and “smart” I2C-controlled…
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AirPlay 2 support for Sonocotta boards
In case you missed it, there is a great piece of ESP32 software that popped up recently, called Airplay-ESP32. A key feature of that is an Apple AirPlay 2 protocol implementation. V1 was implemented some time ago as part of squeezelite-esp32 firmware, and I think it is a good alternative to a Bluetooth player on…
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TPA3128 design errata
Recently, I received a hint from a community member that noises and pops on the TPA3128-based Amped boards that I wrote about a few times can be fixed simply by changing the modulation mode to BD mode. Since every board based on TPA3118/TPA3128 amps has solder jumpers allowing changing the modulation scheme, I went to…
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Louder-ESP32 video review
Nice video review of the Louder-ESP32-based project performed by tmuWolverine