This tutorial demonstrates a simple way to make use of bluetooth for reading data in arduino projects. The aim of this tutorial is to gather sensor data from a simple temperature sensor and transfer it to the PC using bluetooth communication.

Learn how to use Bluetooth with Arduino, how to connect HC-05 Bluetooth module to Arduino, how to connect smartphone to Arduino via Bluetooth, how to exchange data between Arduino and smartphone, how to control Arduino from smartphone, how to control Arduino via Bluetooth

Nov 5, 2022 · I am reading in via Bluetooth serial. The first two bytes provide the length of the message to follow. Once I calculate the length then I add the successive bytes(chars) to an input string until the total message is complete.

Mar 8, 2015 · I am getting 0, 10 from a spinner in my Android code, through bluetooth. Look at the examples in serial input basics. One of them should meet your requirement - perhaps the second one. ...R. A very simple example of capturing characters sent from the serial monitor and then acting on what was sent. Serial.begin(9600); pinMode(ledPin, OUTPUT); .

Feb 13, 2012 · Before I got there though I have adopted new code for the Android / Bluetooth / Arduino connection with the SoftwareSerial library that simply reads what my phone is sending via the BlueSmirf and prints it to the Arduino serial window.

Step 2: Connect the LCD Display and Bluetooth HC05 to the Arduino Step 3: Connect the ELM327 to the OBD2 Connector of Your Car Step 4: Turn the Ignition on or Start Your Car to Display the Coolant Temperature

Jan 27, 2025 · The Bluetooth module HC-05 with Arduino is an excellent choice for adding wireless communication to your projects. With straightforward connections and simple coding, it’s perfect for beginners and advanced users alike.

Jul 3, 2021 · Establish a BT connection, send command to turn LED on and off and check the status of the LED.

Jun 13, 2019 · Send mini documents to a 16x2 LCD display. With this project, you'll be able to send a mini document of up to 64 characters, and read them on a 16x2 LCD. With a push button, you can see the other lines that don't fit on the screen. 75 { 76 digitalWrite(green,HIGH); 77 Serial.println("ENCENDIDO"); 78 79 estado = 1;

Apr 25, 2024 · In this post, I will show you how to get started with the Bluetooth Low Energy (BLE) 4.0 module to control LEDs. This project can be adapted to also control relays or robots . BLE is not like normal HC05/06 modules , because it works on Bluetooth V4.0.