The Dragino HE draws under full load approximately 200 mA. The Dragino Yún shield gets its supply voltage from the connected Arduino board. Power supply details: 2.1.2 Dragino Yún Shield The board is prepared for the use of a Power over Ethernet (PoE) module. Furthermore, this connection serves as a communication path to the Arduino development environment (IDE).Īnother possibility is to source the Arduino Yún via the Ethernet. The micro-USB interface is a common way to connect an Arduino with a power supply. Hence, possible hurdles are largely eliminated when using one of the two platforms. This chapter describes the similarities and differences between the Arduino Yún and the Dragino Yún shield. These explanations should provide a quick overview of the enhanced possibilities of these LAN- and WLAN-capable Arduinos.ĭetail information about the Arduino Yún and the Dragino Yún shield can be found via the following URLs: This book explains the start-up of the Arduino Yún and the Dragino Yún shield connected to an Arduino Leonardo and their use. Figure 5 shows the top view of the Dragino Yun shield. Its Atheros AR9331 SoC runs the same Linino (OpenWRT) as Linux distribution, as for Arduino Yún. The encapsulated Dragino HE Module is the core of the Dragino Yún shield. But it is possible to connect alternative Arduino boards with the Dragino Yún shield, too. The Dragino Yún shield gets the Arduino Yún functionality by connecting it to an Arduino Leonardo. Launched by the Chinese company Dragino ( ), the Dragino Yún shield includes all the components of the Arduino Yun without the ATmega32u4. The layout work was done in Switzerland and production in Taiwan. Dog Hunter, which is located in the U.S.A., developed the board. The fathers of the Arduino are from Italy. On the rear, you can see the internationality of this product. In the upper part, you can see the Atheros AR9331, a 2.4 GHz System-on-a-Chip (SoC) developed for WLAN and router applications.įigure 4 shows the rear of an Arduino Yún with an AU6350 Single-Chip-USB 2.0 hub and multimedia card reader controller and an SD card holder. The Arduino Yún represents itself against a connected computer additionally to the virtual (communication device class) COM port as mouse, keyboard or another HID interface.įigure 3 shows the front side of an Arduino Yún. Since the ATmega32u4 has an integrated USB controller, it has no need for a second controller, like an FT232 for example. The Arduino Yún is similar to the Arduino Leonardo because Arduino Leonardo uses an ATmega32u4 too. Additionally to powerful Linux commands like cURL, an option is to use one’s own Shell or Python scripts for a robust interaction with Arduino Yún. These capabilities make the Arduino Yún a powerful platform for Linux application in a network and IoT projects combined with the simplicity of the Arduino. The Arduino Yún differs from other Arduino boards through its capabilities to communicate with the Linux system running on the Atheros AR9331. The Ethernet part is identical to the Ethernet shield. The difference from other Arduino boards is the missing USB-to-serial chip. The Ethernet shield and the Arduino Ethernet provide an Ethernet interface based on the WIZnet Hardwired TCP/IP Embedded Ethernet Controller W5100.įigure 1 shows an Ethernet shield that can be placed on an Arduino and provides them an Ethernet interface.įigure 2 shows an Arduino Ethernet, a combination of an Arduino and an Ethernet interface on one board. If you want to extend an Arduino so that it is network enabled, then you could use, for example, an Arduino Uno supplemented with an Ethernet shield or you could use an Arduino Ethernet.
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