Dear Spotpear Support Team,
I am writing to request technical documentation or the complete GPIO pinout mapping for the ESP32-S3-AI-1.54-Box (SKU: 020805200000).
I am attempting to compile a custom firmware using ESP-IDF / ESPHome for integration purposes, but I am encountering a hardware communication failure with the onboard peripherals.
Issue Details
- Symptom: When scanning the I2C bus at startup (SDA: GPIO2, SCL: GPIO1), the system reports Found no devices, failing to detect the onboard ES8311 audio decoder chip.
- Impact: Because the I2C bus fails to initialize the codec and audio lines, neither the microphone nor the speaker can be driven properly.
Requested Information
To resolve this mapping issue, could you please provide:
- The complete GPIO pin mapping / schematic for this specific board variant covering:I2C bus (SDA and SCL pins connected to the ES8311)I2S audio bus (BCLK, LRCLK, DIN, DOUT)Amplifier (PA) enable pinDisplay SPI bus pins (MOSI, CLK, CS, DC, RST, Backlight)
- Any reference C++ / Arduino initialization examples or code snippets for the audio and display subsystems on this board.
Thank you for your assistance.
Best regards,
Bruce
