Arduino Delphi Serial Communication Arduino Bluetooth

Updated: Added example 2 In the post I explained how to connect a HC-05 to a HC-06 so that when powered they automatically made a connection. Here we look at using that connection to get Arduinos talking over Bluetooth. Before continuing you need to have the Arduinos and BT modules set up as per the previous post. Here I am using 2 HC-05s.

HC 05/06 works on serial communication.here the android app is designed sending serial data to the Bluetooth module when certain button is pressed. The Bluetooth module at other end receive the data and send to ardunio through the TX pin of Bluetooth module(RX pin of arduino). Aug 25, 2016 - The module also has a few clones; one is called BT-05, another is. In addition to the HM-10 and Arduino, I will be using Evothings Studio to develop our mobile app. Open Evothings Viewer app, provide your connection key and tap. In this block of code, we are reading the software serial of Arduino.

One in master mode the other in slave mode. The setup process for the slave mode HC-05 is the same as the HC-06 in the previous post. Set Up I am using 5V Arduino Nanos but any kind of 5V AVR based Arduino can be used. I have designated one of the Arduinos as the master device. This is the one that initiates the connection and in the first example it is the one that sends the commands. Having a master and slave setup makes the programming a little easier.

To communicate with the BT modules I am using AltSoftSerial which uses pin 8 and pin 9. E prime serial number crack for fl. The AltSoftSerial library can be downloaded from and it will need to be added before you can compile the example sketches. Both BT modules are set with a communication baud rate of 9600. This can be changed but make sure you match the baud rate used when opening the software serial connection.

// open software serial connection to the Bluetooth module. Korshunov m petjka i ego petjkina zhiznj chitatj rasskaz. Begin ( 9600 ); Connecting the Bluetooth Modules Most HC-05s and HC-06s have 3.3v TX and RX pins. 5V Arduinos will read 3.3v as HIGH so the BT modules TX pin can be connected directly to the Arduino RX pin. However, the Arduino TX pin needs to be converted to 3.3v before connecting to the BT modules RX pin. A simple way to do this is by using a voltage divider made from 2 resistors; I generally use 1 x 1K and 1 x 2K. Arduino RX (pin 8) to BT module TX pin Arduino TX (pin 9) to BT module RX pin via a voltage divider Both Arduinos have the same connections to the BT modules. Example 1: Remote Control an LED In the first example we get one Arduino to control an LED connected to a second Arduino.