Warning:Pay special attention to the voltage that is over 38 volts. NOTE:The Arduino board requires an external power supply to drive the xbee module and relays. This arduino relay shield is an ideal solution for home automation and robotics applications. The only downside to a relay is that the frequency of switching is limited to a low value. Note: Please ensure the back of the board is. The Shield features four relays, each relay provides 2 pole changeover contacts (NO and NC) in order to increase the current limit of each output the 2. Relays help to do this the Arduino drives a 5v relay, which in turn controls AC appliances. This shield plugs directly onto a standard Arduino footprint device, and you have 4 relays at your command. The Arduino 4 Relays Shield is a solution for driving high power loads that cannot be controlled by Arduino's digital IOs, due to the current and voltage limits of the controller. With built-in Xbee socket, it can be wireless remote controlled via Xbee/ bluetooth/WPM. Arduino is an awesome micro-controller to get started with DIY electronics, but you can not control AC appliances with it directly. The max switching power DC 90W or AC 360VA gives direct control by Arduino Uno/ DFRduino controllers through digital I/Os with external 9V supply. This Arduino Shield is a completely newly designed that is able to control 4 relays at a time. With relays you can now connect external circuit or devices directly to your Arduino. This shield requires a 12V 500mA (minimum current capability) power supply input to the Arduino Uno, as that board uses relays with a 12V coil. Relays allow for interfacing an external electrical circuit like a switch. Based on your newly-added photo, you are using the Velleman VMA05 I/O Shield (or the KA-05 kit version). But interfacing with high power and AC is quite a dangerous task when building the circuitry. Farnell Deutschland offers fast quotes, same day dispatch. One of the most interesting projects for your boards is perhaps being able to control High power devices like Lamps, water pumps, garage doors and so on. Buy TSX00003 - Arduino - Daughter Board, Relay Shield for Arduino MKR, 2 x 3.3V DPDT Relays. It is commonly used to control anything over 5V such as lamps, water pumps and garage doors. This will prevent the relay shield from making contact. Place 2 layers of electrical tape on the top of theArduinos usb connector. This device can carry high voltages and can therefore be deadly if incorrectly used.This Relay Shield for Arduino acts like a switch. Working status indicators for each relay. The 12VDC power presence is pointed out by the switching on of the red led PWR placed next to the corresponding teminal block.Īn important feature of this shield is the presence of the interface connector for the ESP8266 modules that allows you to communicate remotely via these wireless modules with the Arduino that houses the WiFi Relay Shield, making it simple to use this board in robotics applications, industrial controls and home automation.ĭuring the programming of the Arduino board and in general during the serial communication between Arduino and PC, the presence of the ESP8266 module interferes with the signals of the serial port for this reason it is necessary to remove the ESP8266 module from the shield during these phases. This 12V power supply can be taken directly from the Arduino Vin pin or connected to the terminal block. The control of all the channels of this shield have to be done through the digital I/O pins 5, 6, 7 and 8 of the Arduino board where this shield is mounted on, anyway it is necessary an external 12VDC power source to correctly supply the relay coils. The maximum switching power is 1250VA AC or 150W DC. The WiFi Relay Shield is an Arduino compatible module that provides an easy way to control high voltage thanks to 4 independent channels equipped with photo-coupled mechanical relays preassembled on the board.
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