Waveshare ESP32-S3-AMOLED-1.91-M is an ESP32-S3 based dev board with 1.91″ display Accelerometer Gyroscope and more

Waveshare has recently launched the ESP32-S3-AMOLED-1.91-M dev board which is an ESP32-S3-based board with a 1.91″ AMOLED display, designed for rapid prototyping and IoT or portable projects Powered by the ESP32-S3R8 chip, it includes a 32-bit LX7 dual-core processor (up to 240MHz), 2.4GHz Wi-Fi, Bluetooth BLE 5, 16MB Flash, 8MB PSRAM, and additional SRAM/ROM memory. The display, with a 240 × 536 resolution, supports 16.7 million colors and is driven by the RM67162 controller, making it ideal for GUI applications. Available in touch and non-touch versions, it also features a 6-axis IMU for motion-sensitive applications, USB Type-C, MicroSD storage, and a LiPo battery header for portable use.

Previously we have written about various ESP32-S3-based development boards including the Lilygo T-Embed, Lilygo T-Embed CC1101 and many more feel free to check those out if you are interested in ESP32-S3-based development boards.

ESP32-S3-AMOLED-1.91-M dev board Specifications

• Processor:
  • ESP32-S3R8 chip
  • Xtensa 32-bit LX7 dual-core processor
  • Up to 240 MHz main frequency
  • Built-in 512KB SRAM and 384KB ROM
• Memory:
  • 16MB Flash
  • 8MB PSRAM
• Wireless Connectivity:
  • 2.4 GHz Wi-Fi (802.11 b/g/n)
  • Bluetooth 5 (LE) with Mesh support
• Display:
  • 1.91-inch AMOLED
  • 240×536 resolution
  • 16.7M colors
  • 350 cd/㎡ brightness
  • 100000:1 contrast ratio
  • QSPI interface
• Sensors:
  • QMI8658 6-axis IMU (3-axis accelerometer, 3-axis gyroscope)
• Storage:
  • TF card slot (for external storage)
• Interfaces:
  • USB Type-C port (power supply, programming, debugging)
  • Lithium battery header (3.7V MX1.25)
  • Pico header compatibility (for Raspberry Pi Pico HATs)
• Power:
  • Lithium battery charging/recharge header
• Other Features:
  • CNC metal case with oxidation dull-polish surface
  • Touch version available (FT3168 touch controller)
  • Pre-soldered pin header option available
• Dimension – 59.6 x 28 x 3 mm

In terms of software, the ESP32-S3-AMOLED-1.91-M dev board can be programmed with multiple software environments, including ESP-IDF and Arduino. However, at the time of writing, the documentation page for this board is not yet available on Waveshare.

The development board is priced at around $29.99 for the base model which excludes soldered headers and touch functionality. Adding touch capability is an additional $5.00, and pre-soldered pin headers are available for $1.00.

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