Arduino Uno Robot LCD cover and buttons. By snarshooter Oct 15. Arduino Mega / Uno + Ethernet Shield Box Enclosure with Snap Together Lid and 1602 LCD Cutout. By kaklik Apr 7, 2015. Box for USB Programmer Mini Pro.
Yun Shield w/ Leonardo Basically, a Yun Shield + Leonardo equal the official Arduino Yun, but the Yun Shield is more flexible because it can work with other Arduino board such as Uno, Duemilanove, Mega etc. The Yun Shield uses external an wifi antenna which provides stability and the possibility for various configurations and environments. Hardware version info Difference between v1.x and v2.x v1.x and v2.x are both provided, they difference between them are: • v1.x can be powered by DC or USB port from Arduino, while v2.x can only be powered by DC port. • v2.x support Micro SD card • v2.x support two USB host ports, while v1.x only support 1 USB host Port. For v1.x series • Yun Shield v1.0: The first hardware release for the Yun Shield. • Yun Shield v1.1: Minor change from v1.0 according to feedback from customers.
• Yun Shield v1.1.6: • Add Passive PoE port,Yun Shield can be powered by PoE Injector now • Change the design to auto works with 3.3v or 5v Arduino. No need to manually select jumper. • Level Shift is now can output more current. This increase the compatibility with different Arduino boards.
Change Log from Yun Shield v1.1 to v1.1.6 For v2.x series • Yun Shield v2.3: • Add an extra USB port, • Add Micro SD card slot. • v2.3 needs more power than the v1.1 in the USB part, so modified the power supply section to let it be powered by a DC adapter only. • Yun Shield v2.4: • Add Passive PoE port, Yun Shield can be powered by PoE Injector now. • Change the design to auto works with 3.3v or 5v Arduino. No need to manually select jumper.
• Level Shift is now can output more current. This increase the compatibility with different Arduino boards. Yun Shield v2.4 difference Specifications • Processor: 400MHz, 24K MIPS • Flash: 16MBytes • RAM: 64MBytes • Power Input: 4.75v ~ 23v via Arduino VIN pin • 1 x 10M/100M RJ45 connector • 150M WiFi 802.11 b/g/n • External Antenna via I-Pex connector • 1 x USB 2.0 host connector, used for USB storage or 3G connection • 1 x Reset button • Compatible with 3.3v or 5v I/O Arduino. Features • Open source Linux (OpenWrt) onboard • Low power consumption • Compatible with Arduino IDE 1.5.4 or later, user can program, debug or upload sketches to the Arduino board via the Arduino IDE. Testovij rolik dlya proverki kachestva izobrazheniya televizora. • Managed by Web GUI, SSH via LAN or WiFi • Software upgradable via network • Built-in web server • Supports internet connection via LAN port, WiFi or 3G dongle.
• Supports USB flash to provide storage for Arduino projects. • Failsafe design provides robust system. • Compatible with Arduino Leonardo, Uno, Duemilanove, Diecimila, Mega LEDs There are four LEDs on the Yun Shield. The functions of these LEDs are: • PWR: Power Indicate LED. Turns on once there is power. • LAN: Indicates there is a LAN connection when it is on or blinking.
• WLAN: Indicate WiFi status. • SYS: LED for USB storage. It is on if the USB flash is linked to the Arduino Yun default SD directory /mnt/sd and /www/sd System Structure. Yun Shield Diagram Interface: The RJ45, WiFi, USB Host and Failsafe are connected to the Dragino HE module directly. And the Dragino HE module uses SPI and the UART to communicate with the Arduino Board.
The Yun Shield is compatible with 3.3v and 5v Arduino boards. The on board jumper SV1 is used to set the SPI and UART to 3.3v or 5v level. The SPI interface is used to upload the sketches from the Arduino IDE. The SPI interface only connects to Dragino HE during uploading so the Arduino SPI can still be used to connect to other SPI slave devices.
The UART interface is used for the Bridge class in Arduino: there are lots of examples explaining how to use the bridge class in the Arduino IDE. It is the core of the Yun solution. We must make sure the serial Interface of the Arduino is not used by other hardware. Power Requirement.
Power Jumper on Yun Shield v1.1 via Arduino DC port The Dragino HE is the core module of the Yun Shield. The HE module requires around 200mA current when at full load, so it is powered by the Arduino VIN pins to avoid overheating in the Arduino onboard 5v LDO. So when the Yun shield is used, the Arduino board should be powered by DC port instead of USB port. The DC input can be 9v ~ 15v.