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Description of product


STM32L4R9I-DISCO Discovery Kit allows developers to explore the ultra-low-power oriented features, graphics performance (Chrom-ART Accelerator), and DSI controller offered by the Arm Cortex-M4 core-based STM32L4R9AI Microcontroller. 

The STM32L4R9I-DISCO enables users to easily prototype applications with state-of-the-art energy efficiency, as well as offering stunning audio and graphics rendering, and direct support for an AMOLED DSI round LCD display. ST-LINK/V2-1 is integrated on the STM32L4R9I-DISCO, as an embedded in-circuit debugger and programmer for the STM32 MCU.

The STM32L4R9I-DISCO offers everything required for users to get started quickly and develop applications easily. The full range of hardware features on the Discovery Kit includes USB OTG FS, microSD card, 8-bit camera interface, 16-Mbit PSRAM, Pmod and STMod+ connectors, IDD measurement, full-duplex I2S with an audio codec and stereo headset jack including an analog microphone, DFSDM with a pair of MEMS digital microphones on board, 512-Mbit Octo-SPI Flash memory device, I2C extension connector, and a 1.2" AMOLED display using a one data-lane DSI interface with a capacitive touch panel. The Arduino™ compatible connectors expand the functionality with a wide choice of specialized shields.

The STM32L4R9I-DISCO Discovery Kit supports a wide range of Integrated Development Environments (IDEs) including IAR, Keil and GCC-based IDEs.

Key features

  • STM32L4R9AII6 microcontroller with 2-Mbyte Flash memory and 640-Kbyte RAM in UFBGA169 package
  • 1.2” 390x390 pixel AMOLED round display panel with 16-million colors depth, MIPI® DSI interface, and capacitive touch panel
  • On-board current measurement
  • SAI audio codec
  • ST-MEMS digital microphones
  • 16-Mbit asynchronous PSRAM
  • 512-Mbit Octo-SPI Flash
  • 2 user LEDs
  • 1 reset push-button
  • 4-direction joystick with selection button
  • Board connectors:
    • 8-bit camera
    • USB OTG FS with Micro-AB
    • Stereo headset jack including analog microphone input
    • microSD™ card
  • Board expansion connectors:
  • Flexible power-supply options:
    • ST-LINK USB VBUS or external sources
  • On-board ST-LINK/V2-1 debugger/programmer with USBre-enumeration capability: mass storage, virtual COM port and debug port
  • Comprehensive free software libraries and examples available with the STM32Cube package
  • Support of a wide choice of integrated development environments (IDEs), including IAR™, Keil® and GCC-based IDEs