Chapter 1. Get Started
Hardware Reference
Block Diagram A block diagram below shows the components of the ESP-LyraP-LCD32 and their interconnec-
tions.
Fig. 42: ESP-LyraP-LCD32 block diagram
Hardware Revision Details
ESP-LyraP-LCD32 v1.2
• LCD backlight default ON, cannot be controlled by MCU
• Touch Driver and related switch removed for major limitations caused by multiplexed pins
ESP-LyraP-LCD32 v1.1 Initial release
Related Documents
• ESP-LyraP-LCD32 Schematic (PDF)
• ESP-LyraP-LCD32 PCB Layout (PDF)
For other design documentation for the board, please contact us at sales@espressif.com.
ESP-LyraT-8311A v1.3 This user guide provides information on the ESP-LyraT-8311A extension board.
This board cannot be bought separately and is usually sold together with other Espressif development boards (e.g.,
ESP32-S2-Kaluga-1), which will be referred to as main boards below.
Currently, ESP-LyraT-8311A v1.3 is sold as part of the ESP32-S2-Kaluga-1 Kit v1.3.
The ESP-LyraT-8311A extends the functionality of your main board by adding sound processing functionality:
• Audio playback/recording
• Processing of audio signals
• Programmable buttons for easy control
This extension board can be used in many ways. The applications might include voice user interface, voice control,
voice authorization, recording and playback of sound, etc.
The document consists of the following major sections:
• Overview: Provides an overview and hardware setup instructions.
• Hardware reference: Provides more detailed information about the ESP-LyraT-8311A’s hardware.
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