Louder-ESP32-S3 Stereo Audio Development Board TAS5805M with External Antenna

The Louder-ESP32-S3 from Sonocotta is a complete stereo audio development board combining an ESP32-S3-WROOM-N8R8 microcontroller with the Texas Instruments TAS5805M I2S DAC and integrated Class D amplifier. It is suitable for direct connection of passive speakers and delivers up to 2×23 W into 8-ohm loads or 2×32 W into 4-ohm loads. Compared to the ESP32 variant, the ESP32-S3 offers improved computing power and an external Wi-Fi antenna for better signal quality in shielded enclosures or at greater distances from the router.

Recommended Accessories:

• Speaker 4 Ohm 3 W 40 mm
• 5 W 4 Ohm Speaker in Plastic Enclosure
• 12 V DC 4000 mA Power Supply AC/DC Adapter 5.5 mm/2.1 mm Plug

Features:

• Texas Instruments TAS5805M I2S DAC with integrated Class D amplifier delivers up to 2×23 W (8 Ω) or 2×32 W (4 Ω) for direct operation of passive speakers without external amplifier
• Onboard DSP of the TAS5805M with parametric EQ, soft clipping, DRC, and AGL enables extensive sound processing directly on the board without an external processor
• ESP32-S3-WROOM-N8R8 with external Wi-Fi antenna for improved signal quality in metal enclosures, shielded rooms, or at greater distances from the router
• 8 MB PSRAM (4 MB usable) provides sufficient buffer memory for stable audio streaming even with high bitrate content
• Voice-assist capable via ESPHome with I2S microphone header and ESP32-S3 for local voice control and Home Assistant automations
• Optional W5500 Ethernet header for wired network connection in Wi-Fi-dense environments and mechanical Raspberry Pi 4 case compatibility

Application Examples:

• Multi-room audio system with Snapclient for perfectly synchronized playback in multiple rooms without proprietary platform
• Home Assistant speaker with ESPHome integration and voice assist for voice control, TTS notifications, and music playback
• Standalone network player with Squeezelite-ESP32 for Spotify Connect, AirPlay, and Logitech Media Server in weak Wi-Fi environments thanks to external antenna
• Installation in metal enclosures or shielded speaker boxes where the external antenna ensures Wi-Fi reception
• Prototyping of audio-capable IoT devices with DSP sound adjustment, voice control, and optional Ethernet connection

Documentation:

• GitHub – Sonocotta ESP32 Audio Dock
• Sonocotta – Louder ESP32 Product Page

Technical Specifications:

• Manufacturer: Sonocotta
• Manufacturer SKU: CQA23809 ESP32-S3 with External
• MCU: ESP32-S3-WROOM-N8R8 (Dual-Core, 240 MHz)
• Flash: 8 MB
• PSRAM: 8 MB (4 MB usable)
• Wi-Fi: 2.4 GHz IEEE 802.11 b/g/n, Bluetooth 5.0 + BLE, external antenna
• DAC / Amplifier IC: Texas Instruments TAS5805M (I2S, Class D)
• Output Power: 2×23 W (8 Ω, 1 % THD+N) / 2×32 W (4 Ω, 1 % THD+N) / 1×45 W (Bridge, 4 Ω)
• DSP: Onboard TAS5805M DSP (parametric EQ, soft clipping, DRC, AGL)
• Speaker Output: 2× Stereo Screw Terminal (passive, no headphones)
• Power Supply: 5–28 V DC (Barrel Connector), USB-C for 5 V Operation
• Ethernet: W5500 SPI Header (optional module)
• I2S Microphone: Header (Stereo, unpopulated)
• Case Compatibility: Raspberry Pi 4
• Supported Firmware: Squeezelite-ESP32, Snapclient, ESPHome, Arduino IDE, PlatformIO
• Package Dimensions: 180 × 120 × 14 mm
• Gross Weight: 51 g

Scope of Delivery:

• 1× Louder-ESP32-S3 Stereo Audio Development Board TAS5805M with External Antenna