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Documentation > GR5526 Starter Kit User Guide/ Introduction Copy URL


The GR5526 Starter Kit (GR5526 SK) is a development platform based on GR5526 System-on-Chips (SoCs) (supporting Bluetooth 5.3). It contains a GR5526 Starter Kit Board (GR5526 SK Board), design documents, and a user guide. This helps users quickly develop product prototype and verify related functions/performance, shortening product development and go-to-market periods.

The figure below shows the photo of a GR5526 SK Board:

Figure 1 GR5526 SK Board

By default, display application firmware has been programmed to a GR5526 SK Board. You can view demo graphics by connecting a GR5526 SK Board to a display daughter board. You can also generate firmware by compiling other application example projects provided in a GR5526 Software Development Kit (SDK) and then download the firmware to a GR5526 SK Board for debugging/testing.

Before you get started, it is recommended to refer to the following documents.

Table 1 Reference documents
Name Description

GR5526 Developer Guide

Introduces the software/hardware and quick start guide of GR5526 SoCs.

J-Link/J-Trace User Guide

Provides J-Link operational instructions. Available at


Offers GR5526 SK Board schematic diagrams.

GProgrammer User Manual Lists GProgrammer operational instructions including downloading firmware to and encrypting firmware on GR5526 SoCs.


  • A single-mode Bluetooth Low Energy (Bluetooth LE) SoC that supports Bluetooth 5.3
  • Multi-functional buttons and LEDs
  • SEGGER J-Link OB that supports debugging
  • UART-to-USB connector
  • USB Type-C connector
  • 1.39-inch circular color AMOLED touch display (454 x 454 dpi)
  • On-board I2S Audio module
  • Two on-board Pulse Density Modulation (PDM) digital microphones
  • On-board QSPI Flash and PSRAM, with reserved interfaces for external Flash and PSRAM
  • On-board AoA/AoD multi-antenna interface
  • On-board adjustable boost circuit
  • Battery level detection
  • Reserved standard 2.54 mm jumper pin I/O interface

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