Specifications:
Compatible MCU Platform: ESP32 (MakePython series)
Audio Codec: ES8388 (or variant such as ES9023/ES7243 based on version)
Audio Interface: I2S digital audio (DAC/ADC)
Input Options:
– Stereo line-in
– Electret microphone inputOutput Options:
– Stereo headphone jack
– Mono/stereo speaker outputSampling Rate: Up to 96 kHz (depends on codec version)
Bit Depth: 16-bit / 24-bit audio
Signal-to-Noise Ratio (SNR): ≥ 90 dB
Dynamic Range: > 100 dB (typical for ES8388)
Power Supply: 3.3V / 5V (regulated onboard)
Interface: 2×12-pin expansion headers
Board Dimensions: Approx. 50mm × 25mm
Weight: ~10 grams
Programming Support: MicroPython, Arduino (ESP32 I2S library)
Operating Temperature: –20°C to +70°C
Applications: Smart audio IoT devices, MP3/WAV players, voice capture, TTS systems, speech recognition prototypes
Compliance: RoHS compliant
