ESP32-S3-Touch-LCD-1.28

Overview

The ESP32-S3-Touch-LCD-1.28 is an ESP32S3 development board from Waveshare with a round LCD, suitable to build watches or similar projects. This board integrates complete Wi-Fi and Bluetooth Low Energy functions, an accelerometer and gyroscope, a battery charger and GPIO extension port.

Hardware

ESP32-S3 is a low-power MCU-based system on a chip (SoC) with integrated 2.4 GHz Wi-Fi and Bluetooth® Low Energy (Bluetooth LE). It consists of high-performance dual-core microprocessor (Xtensa® 32-bit LX7), a low power coprocessor, a Wi-Fi baseband, a Bluetooth LE baseband, RF module, and numerous peripherals.

ESP32-S3-Touch-LCD-1.28 includes the following features:

Dual core 32-bit Xtensa Microprocessor (Tensilica LX7), running up to 240MHz
Additional vector instructions support for AI acceleration
2MB of SRAM
16MB of FLASH
Wi-Fi 802.11b/g/n
Bluetooth LE 5.0 with long-range support and up to 2Mbps data rate
Round 1.28” LCD with touchscreen controller
Accelerometer/gyroscope
Battery charger

Digital interfaces:

6 programmable GPIOs
2 open-drain outputs

Low Power:

Power Management Unit with five power modes
Ultra-Low-Power (ULP) coprocessors: ULP-RISC-V and ULP-FSM

Security:

Secure boot
Flash encryption
4-Kbit OTP, up to 1792 bits for users
Cryptographic hardware acceleration: (AES-128/256, Hash, RSA, RNG, HMAC, Digital signature)

Asymmetric Multiprocessing (AMP)

ESP32-S3 allows 2 different applications to be executed in ESP32-S3 SoC. Due to its dual-core architecture, each core can be enabled to execute customized tasks in stand-alone mode and/or exchanging data over OpenAMP framework. See Inter-Processor Communication (IPC) folder as code reference.

For more information, check the datasheet at ESP32-S3 Datasheet [1] or the technical reference manual at ESP32-S3 Technical Reference Manual [2].

Supported Features

Current Zephyr’s ESP32-S3-Touch-LCD-1.28 board supports the following features:

Interface	Controller	Driver/Component
UART	on-chip	serial port
GPIO	on-chip	gpio
PINMUX	on-chip	pinmux
SPI Master	on-chip	spi
TWAI/CAN	on-chip	can
ADC	on-chip	adc
Timers	on-chip	counter
Watchdog	on-chip	watchdog
TRNG	on-chip	entropy
LEDC	on-chip	pwm
MCPWM	on-chip	pwm
PCNT	on-chip	qdec
GDMA	on-chip	dma

Prerequisites

Espressif HAL requires WiFi and Bluetooth binary blobs in order work. Run the command below to retrieve those files.

west blobs fetch hal_espressif

Note

It is recommended running the command above after west update.

Building & Flashing

Simple boot

The board could be loaded using the single binary image, without 2nd stage bootloader. It is the default option when building the application without additional configuration.