Product Overview SmartAmplifier-ESP32 is a compact intelligent audio amplifier powered by the ESP32-WROVER chipset, featuring built-in PSRAM. Its power amplification is driven by the TAS5805M module, delivering the following output capabilities:

12V input: 2x4Ω / 15W 22V input: 2x8Ω / 23W The combination of high power output and ample PSRAM enables it to effortlessly drive full-sized speakers and efficiently handle audio applications. SmartAmp supports various firmware installations (e.g., ESPHome,Squeezelite-ESP32, YoRadio), offering exceptional performance and versatility. In standby mode, its average power consumption is below 1W, showcasing excellent energy efficiency.

Core Features and Firmware Support 1.ESPHome Integrates an external I2S DAC for high-quality, hi-fi audio playback. Seamlessly integrates with Home Assistant for smart home control. Combines high power output and memory capacity to handle complex audio streaming effortlessly.

2.Squeezelite-ESP32 Originally designed as a multimedia player for Logitech Media Server (LMS). Supports Spotify wireless playback via SpotifyConnect. Compatible with AirPlay (for iPhone, iTunes, etc.), including multi-room synchronization (AirPlay 1 only). Supports traditional Bluetooth connectivity, compatible with iPhone and Android devices Can be flashed directly via a browser using the Squeezelite-ESP32 installer. [https://sle118.github.io/squeezelite-esp32-installer/]

3.yoRadio Web-radio based on ESP32-audioI2S library [https://github.com/e2002/yoradio] See wiki[https://github.com/e2002/yoradio/wiki] for details

Hardware Specifications Main Chip: ESP32-WROVER (with 4MB PSRAM) Power Amplifier: TAS5805

Pin Definitions: Function | ESP32 Pin I2S CLK | GPIO13 I2S DATA | GPIO27 I2S WS | GPIO33 TAS5805 SDA | GPIO14 TAS5805 SCL | GPIO26 TAS5805 PWDN | GPIO12 TAS5805 I2C ADDR | 0x2D Power Interface DC 6mm barrel/2mm pin (commonly 5.5/2.5mm plug)

Power Requirements Select an adapter based on speaker power and impedance. For example, calculate voltage and current for driving 2x10W/8Ω speakers.

Usage Notes Power Connection: Do not connect Vin and USB simultaneously, as this may damage the USB port. Audio Streaming Buffer: Ensure proper buffer settings for stable playback.

Application Scenarios SmartAmplifier-ESP32 combines the robust computational power of the ESP32 with a high-fidelity Class-D amplifier, making it ideal for developing premium audio products and smart home integration projects. Whether for audio enthusiasts or developers, SmartAmplifier-ESP32 stands out as an excellent choice due to its powerful hardware and flexible software support.