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ID: 1203091
zł124.37
Tax included

zł101.11 tax excl.

ESP32-S3 development board with a 4.2″ reflective RLCD display with a resolution of 300 x 400 px, supporting Wi-Fi and Bluetooth 5 LE, AI Voice Interaction features, and a temperature and humidity sensor, supplied without a 18650 battery. Waveshare ESP32-S3-RLCD-4.2-EN

6 weeks
Awaiting delivery
Kamami is the official distributor of Waveshare displays, accessories and modules.

Description

Waveshare ESP32-S3 RLCD 4.2″ without battery version is an AIoT development board based on the ESP32-S3 microcontroller, designed for projects requiring low power consumption, wireless communication, and voice interaction. The integrated 4.2″ reflective RLCD display provides an e-paper-like reading experience while offering faster refresh performance.

                                                           p1203091-ESP32-S3-RLCD-4.gif

The RLCD display with a resolution of 300 x 400 px operates in reflective mode and does not require a backlight, using ambient light instead. This solution is well suited for bright environments and low-power applications. The board uses an SPI interface to drive the display and is equipped with the ST7305 display driver.

The module is built around a dual-core Xtensa LX7 processor running at up to 240 MHz and supports 2.4 GHz Wi-Fi and Bluetooth 5 LE connectivity. Integrated audio circuits, a dual-microphone array, and a speaker enable AI Voice Interaction applications, including speech recognition and near-field and far-field voice interaction.

                             

Onboard components include an SHTC3 temperature and humidity sensor, a PCF85063 RTC chip, and a TF card slot for storage expansion. Power management and charging circuits are present on the board; however, in this version, the 18650 lithium battery is not included. Power is supplied via the USB-C port or an external power source.

The board supports ESP-IDF and Arduino IDE environments and is intended for prototyping, learning, IoT projects, smart desktop devices, electronic calendars, and control systems.

p1203091-ESP32-S3-RLCD-4.2-intro-whatsonboard.jpgp1203091-ESP32-S3-RLCD-4.2-details-10-interface.jpg

  1. ESP32-S3-WROOM-1-N16R8 - The SoC with Wi-Fi and Bluetooth, 240MHz main frequency, integrated with 16MB Flash and 8MB PSRAM
  2. ES7210 - ADC chip for echo cancellation circuit
  3. ES8311 - low-power audio codec chip
  4. BOOT button - Press it when powering on to enter download mode
  5. PWR button - long press to power off, short press to power on
  6. KEY button - customizable for other functions
  7. SHTC3 temperature and humidity sensor - provides ambient temperature and humidity measurement, enabling environmental monitoring function
  8. PCF85063 - RTC chip with timekeeping function
  9. MX1.25 2PIN speaker header - audio output signal, for connecting external speaker
  10. RTC independent power supply header - supports PH1.0 rechargeable RTC Batt only
  11. 2 x 8PIN 2.54mm pitch female header
  12. 18650 Lithium Batt holder
  13. Dual-microphone array design - dual-microphone array, paired with ES7210 to achieve echo cancellation
  14. CHG charging indicator - off when fully charged
  15. WRN warning indicator - stays on when Batt is reverse-connected
  16. Type-C port - for program burning and log printing
  17. TF card slot - supports FAT32 TF card for data expansion

Features

  • Microcontroller: ESP32-S3, dual-core Xtensa LX7 up to 240 MHz
  • Memory: 512 kB SRAM, 384 kB ROM, 16 MB Flash, 8 MB PSRAM
  • Wireless connectivity: Wi-Fi 2.4 GHz, Bluetooth 5 LE
  • Display: 4.2″ RLCD, reflective mode
  • Display resolution: 300 x 400 px
  • Grayscale: 2 levels
  • Display interface: SPI
  • Display driver: ST7305
  • Display colors: black, white
  • Audio: audio codec, dual microphones, speaker
  • Sensors: SHTC3 temperature and humidity sensor
  • RTC: PCF85063
  • Memory card slot: TF
  • Interfaces: USB, UART, I2C, GPIO
  • Power supply: USB-C, support for 18650 battery (battery not included)
  • Supported environments: ESP-IDF, Arduino IDE
  • Applications: AI Voice Interaction, IoT, prototyping, smart devices
  • Weight: 0.142 kg

Kit includes

  • ESP32-S3-RLCD-4.2-EN board ×1
  • Acrylic stand (2 pieces)
  • 8Ω 2 W speaker MX1.25 2-pin
  • Screwdriver
1203091

Manufacturer

  • BTC Korporacja sp. z o. o.
  • Ludwinowo Zegrzyńskie 52G
  • 05-140 Ludwinowo Zegrzyńskie
  • Poland
  • [email protected]
  • 22 767 36 20

Responsible person

  • BTC Korporacja sp. z o. o.
  • Ludwinowo Zegrzyńskie 52G
  • 05-140 Ludwinowo Zegrzyńskie
  • Poland
  • [email protected]
  • 22 767 36 20

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