Data Sheet

Shenzhen Holyiot Technology Co.,Ltd
www.holyiot.com [e-mail]
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2. Introduction
Holyiot-17120 is powerful, highly flexible ultra-low power Bluetooth low energy (BLE) module
using Nordic NRF52840 SoC, with ARM Cortex-M4 CPU, which has floating Point unit (FPU),
1MB flash with cache and 256kB RAM. It offers a wealth of peripherals that include NFC, USB
and multiple interface options including Quad SPI (QSPI).
It has high-end security features included to achieve best in clas security with an ARM
CryptoCEll cryptographic system on chip and a full AES 128-bit encryption suite.
2.1 Programmer
Holyiot-17120 module use the Serial Wire Debug(SWD port ), the module which layout the
SWDIO, SWCLK, VDD, GND for debug and flash your own firmware, more info about the SWD,
please visit https://www.silabs.com/community/mcu/32-bit/knowledge-
base.entry.html/2014/10/21/serial_wire_debugs-qKCT
You can using the Jlink or Jtag for programmer.
2.2 Software development Tool
It supports the standard Nordic Software Development Tool-chain using Segger Embedded
Studio, Keil, IAR and GCC. More info please visit
http://infocenter.nordicsemi.com/index.jsp?topic=/com.nordic.infocenter.nrf52/dita/nrf52/develo
pment/nrf52_dev_kit.html&cp=1_1
2.3 Protocols
This module support Bluetooth 5, Bluetooth Low Energy,Bluetooth mesh,Thread,
802.15.4,ANT, 2.4GHz proprietary. So we can use different protocols for different situations.
Software Development Kit
Nordic Semiconductor's Software Development Kits (SDK) are your starting point for software
development on the nRF51 and nRF52 Series. It contains source code libraries and example
applications covering wireless functions, libraries for all peripherals, bootloaders, wired and
OTA FW upgrades, RTOS examples, serialization libraries.
More info please visit http://www.nordicsemi.com/eng/Products/nRF52840-DK
You can also download the SDK for coding development .