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.