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.

Note

Simple boot does not provide any security features nor OTA updates.

References