The Bluetooth module we’ll be using is called JY-MCU Bluetooth Board Module ( 4-pin). Here is the datasheet for the main module: HC serial wireless module. Baud rate: ; Device name: linvor; Passkey: The JY-MCU Bluetooth Serial Port module defaults to or Step 1: Connect the JY-MCU module to the Arduino for configuration. Description: JY-MCU Bluetooth Wireless Serial Port Module for Arduino. This incredibly affordable module is compatible with any official Arduino board and can.
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Measuring temperature with DS18B20 temperature sensor. Last time we looked at measuring temperature using a digital temperature sensor. It is already bundled with Arduino, so no further downloads are necessary. If PC sends information via Serial, then we send that information over via Bluetooth. Considering how ubiquitous Bluetooth is most modulr and laptops have itit will turn out to be extremely useful in our future projects.
Easy Arduino Bluetooth Communication with JY-MCU Bluetooth module
If you have an Android device, there is this Blue Serial app for testing serial communication over Bluetooth. So we have several modules generating data, would be great to be able to access that data remotely.
The wiring is really straightforward, no extra components are needed.
Here I sent some information from my PC to the phone and vice versa: It also provides some information on how to change porrt baud rate, device name and passkey, so make sure to check the data sheet. Here is the datasheet for the main module: Once connection is established, that red light will stay on constantly.
Easy Arduino Bluetooth Communication with JY-MCU Bluetooth module
Reading through the docs is, again, encouraged, as we will use very similar code to drive our JY-MCU module. Bluetooth Serial initialization works exactly the same way regular Serial communication works, mcj call begin method with the baud rate.
If there is any data received pirt the bluetooth module, send it over the regular Serial connection to our PC. For Apple devices there should be something similar on the App store as well.
HC serial wireless module. Simply connect the 4 pins to your Arduino board.
Once we turn on Arduino, a red light on Bluetooth module should be flashing continuously. Distance sensing with ultrasonic sensor and Arduino.
First we include the library and set our RX and TX pins. Only two pins to drive the module, other than that the interface is exactly the same as serial communication to PC via USB. If you open up SoftwareSerial constructor docsSoftwareSerial constructor is defined as such:. For transmitting information through the module we will use the default Xerial library.