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ID: 1203090
zł134.38
Tax included

zł109.25 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 with a 18650 lithium battery included. Waveshare ESP32-S3-RLCD-4.2

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

Description

Waveshare ESP32-S3 RLCD 4.2″ with battery version is an AIoT development board based on the ESP32-S3 microcontroller, intended 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 response.

                                                           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 performs well in 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 with a clock frequency of 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 memory expansion. The board features a built-in 18650 lithium battery holder and power management circuits for charging and discharging, with the 18650 battery included in the kit. Power can be supplied either from the included battery or via the USB-C port.

The board supports ESP-IDF and Arduino IDE environments and is suitable 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: 18650 lithium battery (included), USB-C
  • Supported environments: ESP-IDF, Arduino IDE
  • Applications: AI Voice Interaction, IoT, prototyping, smart devices
  • Weight: 0.187 kg

Kit includes

  • ESP32-S3-RLCD-4.2 board ×1
  • Acrylic stand (2 pieces)
  • 18650 lithium battery ×1
  • 8Ω 2 W speaker MX1.25 2-pin
  • Screwdriver
1203090

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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