DFR0270

  Accessory Shield for Arduino SKU:DFR0270 Introduction This Accessory Shield for Bluno is specially made for Bluno (BLE with Arduino Uno), which is first of its kind in intergrating BT 4.0(BLE) module into Arduino Uno. Together with Bluno, this Accessory Shield forms an ideal prototyping platform for both software and hardware developers to go wireless. You will be able to develope your own smart bracelet , smart pedometer etc through the low- power, real-time low energy communication. With built-in seven main functional modules, this Accessory Shield is dedicated to aid interactions between your Bluno and the physical world. These useful modules are:        128x64 OLED Screen To display text input on your phone interface Buzzer To make noises DHT11 Temperature&Humidity Sensor To do environmental monitoring 1.5A Relay To conduct device switch Helical Potentiometer To transfer real time data to your phone RGB LED To display full color RGB Mini Joystick To tell your phone which one in five directions is pressed The exposed terminal on the back is used for the relay external circuit, its mode of operation as with other relay products we have can be checked on the relay link here: Relay wiki link Our relay module has 4 connectors, but one of the connectors is left unused ( N\C not connected ). https://www.dfrobot.com/wiki/index.php/Relay_Module_(Arduino_Compatible)_(SKU:_DFR0017) Specification          128x64 SSD1306 OLED Screen Buzzer DHT11 Temperature&Humidity Sensor 1.5A Relay Helical Potentiometer RGB LED Mini Joystick Size: 60x53x30mm Weight: 25g Powered By DFRobot © 2008-2017