Waveshare ESP32-S3 1.54-Inch e-Paper AIoT Development Board

The board is fully supported by Espressif's official ESP-IDF (IoT Development Framework) and the Arduino IDE via the ESP32 core. You can develop applications in C/C++ using ESP-IDF for maximum control or use the Arduino ecosystem for its extensive libraries and simpler workflow. Setup involves installing the appropriate board package and selecting the correct target (e.g., ESP32-S3 Dev Module) in your chosen IDE.

You can power the board via the onboard USB Type-C port or by connecting a 3.7V lithium-ion/polymer battery to the MX1.25 2-pin header (battery not included). The board includes power management circuitry for charging and voltage regulation. When using battery power, leverage the ESP32-S3's deep sleep modes and the e-paper's zero-power retention to maximize operational life, as the display only consumes energy during refresh cycles.

The onboard ES8311 audio codec manages the microphone input and speaker output. For audio playback, connect a speaker to the MX1.25 2-pin speaker header. Use the I2S and audio driver libraries within ESP-IDF or the Arduino ESP32-AudioI2S library to capture audio from the mic or stream to the speaker. The codec is configured over I2C, and example code is typically provided in the Waveshare wiki or GitHub repository.

Yes, the display controller supports partial refresh modes which are significantly faster than a full refresh. A full refresh may take around 20 seconds to clear ghosting, while a fast partial refresh can be completed in approximately 15 seconds. You must use the specific driver functions for the display (like `epd_poweron()` and `epd_clear()`) provided in the Waveshare display library to manage these modes effectively and avoid image retention issues.