The evaluation of Seeed Arch Link

Arch Link is a mbed-based development board, based on the Nordic NRF51822 and WIZnet W5500 Ethernet interfaces, supporting Arduino interface, Grove connector and micro SD interface.it also can be easily applied to low-power Bluetooth devices.And you can easily control low-power Bluetooth by Grove - Servo and Grove temperature & humidity sensors.

 ♦ Basic package

The kit has a small packaging box.

The kit includes the Arch Link development board, Grove - Servo and Grove temperature & humidity sensors.

The Layout of Development Board Resources  

Nordic NRF51822 is packaged in a module with a shield.

Ethernet interface :WIZnet W5500 program（W5500 through the SPI interface communicates with the NRF51822, which is widely applied to interface programs）

Arch Link main interface： USB Micro-B interface, Ethernet interface, MicroSD interface.

Sensor and the development board connection

Development board with mbed use

Connecting the computer and USB Micro B connector to creates a storage device

At the same time, the power light is lit and the Bluetooth lights flashing

The highlight is the support of mbed . Mbed is a prototype development platform for ARM processor, including free software library (SDK), hardware reference design (HDK) and three parts of online tools (Web)

♦ Power on the board and the use of mbed

1.First of all,log in by mbed .

You can use Import function to import the files or projects ，or use the search function to find your own files or project, and then import it to your own project.

2.Open the Import window, click the URL ：

Https://developer.mbed.org/teams/znrobotics/code/Seeed_Arch_link_TempAndHumidity/

3.Select the import method for the project

4.Click the compile icon to compile online.

The Compile is completed, no errors, and generated a hex file, then the pop-up hex file downloaded window.

5.Copy the downloaded hex file to the storage device. After that, press the reset button on the board.

The program starts running and opening the serial number by the serial port assistant with 9600 baud rate .As you can see, the temperature & humidity values were sent to the computer through the serial port.

Summary：

Arch Link support online IDE mbed for development, have a large number of rich C / C + + library can be used,which can greatly improve the efficiency of development t NRF51822 and W5500 are greatly enhanced its playability. MicroSD, although there are some restrictions on the rate, but its high-capacity storage can be useless in many projects. , Finally,you can connect more sensors, DIY up and handy because of its Compatible Arduino interface.

 Author ：Darcy Beaufort — WIN SOURCE ELECTRONICS