Arch Link is based on Mbed-based development boards based on Nordic NRF51822 and WIZNET W5500 Ethernet interfaces. Support Arduino Interface, Grove Connector, and Micro SD interface, you can easily create Bluetooth low power devices. Grove - Servo and Grove temperature and humidity sensors can have a very simple way to use BLE (Bluetooth low energy consumption) control.
The toolkit has a small packaging box.
The kit contains Arch link development boards, Grove - Servo, and Grove temperature and humidity sensors.
Development board resources, layout:
The main features of the development board:
Nordic NRF51822 Multi-Agreement Bluetooth 4.0 Low Power / 2.4GHz RF SOC, ARM Cortex M0 Processor, 256KB Flash / 32KB RAM
Support Mbed: CMSIS DAP based on LPC11U35, use CMSIS DAP standard for debugging, USB virtual serial communication
WIZNET W5500 Ethernet, with RJ45 connector
Arduino interface with Grove connector, I2C and Servo connector
USB Micro B Interface, MicroSD Interface
Online IDE, easy to use C / C ++ SDK
Where lpc11u35 is NXP's ARM Cortex M0 low cost 32-bit microcontroller, applied to CMSIS DAP on the development board.
Nordic NRF51822 is encapsulated on a module, plus a shield.
The Ethernet interface is WIZNET W5500 scenario, and W5500 communicates with NRF51822 via the SPI interface, which is an application very widely used Ethernet interface scheme.
W5500 Features:
Support TCP, UDP, ICMP, IPv4, ARP, IGMP, PPPoE hardware TCP / IP protocol
Support power saving mode
Support for LAN wake up via UDP
Support high-speed serial peripheral interface (SPI mode 0, 3)
Interior 32kbty memory for TX / RX buffers
Embedded 10BaseT / 100BaseTX Ethernet PHY
Recommended related development board:
Nordic NRF51822 Bluetooth entry suite is a reference design for the possibility of exploring the possibility of using Bluetooth intelligent signal technology.
WIZNET W5500 embedded Ethernet module is a full-hardware TCP / IP embedded Ethernet controller that provides a more simple Internet connection scheme for embedded systems.
Arch Link main interface, USB Micro B interface, Ethernet interface, microSD interface.
Sensor and development board connection method:
Development board is powered with Mbed
Connecting to your computer using the USB Micro B interface, generating a storage device on your computer.
At the same time, the power light on the development board is lit, the Bluetooth light flashes, etc.
A large highlight of the development board is the support of Mbed. Mbed is a prototype development platform for ARM processors, which specifically includes free software library (SDK), hardware reference design (HDK), and online tool (Web).
First, log in by Mbed.
You can use the IMPORT function, the library can be used or the project can be imported. You can also find your own libraries or engineering, import or add to your own project.
Open the Import window, click Import by URL, and enter the import connection to:
https://developer.mbed.org/teams/znrobotics/code/seeed_arch_link_tempandhumidity/
Selecting the way imported as an engineering way, it is to import this library into an independent project.
Click the compile icon to perform online compilation.
Compile completion, there is no error, and generate the HEX file, and the download window of the HEX file is popped up.
Copy the downloaded HEX file to the storage device generated by the development board. After the copy is complete, press the reset button of the development board.
The program starts running, using the serial score to open the serial number identified by the board with a 9600 baud rate, it can be seen that the development board sends the collected temperature and humidity values to the computer through the serial port.
summary
Arch Link supports online IDE Mbed for development, there is a lot of rich C / C ++ libraries to use, and the development project is very fast. The bonding of NRF51822 and W5500 has greatly enhanced its playability. Although MicroSD of the SPI interface has some restrictions on the rate, it achieves large-capacity storage, which can be useful in more scenarios. Compatible with the Arduino interface, you can connect more sensors, DIY is good.
Original declaration: This article is originally created by the panel network, declined!
Recommended related development board:
Nordic NRF51822 Bluetooth entry suite is a reference design for the possibility of exploring the possibility of using Bluetooth intelligent signal technology.
WIZNET W5500 embedded Ethernet module is a full-hardware TCP / IP embedded Ethernet controller that provides a more simple Internet connection scheme for embedded systems.
Our other product:
