I want to develop an Arduino based framework for microcontrollers to play audio via Bluetooth. To fully flex my microcontroller's muscles I'm going to add real-time Digital Signal Processing (DSP) to the audio (high-pass filtering, low-pass filtering and dynamic range compression).

Sep 8, 2020 · My project is as follows: Send realtime audio from my laptop to Arduino via an HC-05 bluetooth module (I.e. play spotify on my laptop and stream that info real-time to my HC05, which sends the data to the arduino). I then want to perform a frequency analysis, listen for specific sound patterns, etc.

This circuit is designed to control a Bluetooth-enabled speaker using an Arduino UNO microcontroller. The Arduino UNO interfaces with a Bluetooth Mate Gold module for wireless communication and drives a speaker for audio output.

Sep 18, 2023 · You would need a Bluetooth audio transmitter. Is there a development or evaluation board that does this? I also have a DX-BT27-A Bluetooth Module.

Sep 22, 2021 · convert that sensor data to a digital audio signal that changes as the input sensor signal changes. The vision is a simple tone that changes frequency linearly with the input sensor signal. transmit that audio signal to Bluetooth headphones / headset, with low latency.

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

Feb 1, 2022 · Together with my ESP32-A2DP Bluetooth library we can build now a Bluetooth receiver that outputs the audio signals as SPDIF with just a few lines of code: Here is the Arduino Sketch. spdif.write(data, length); Serial.begin(115200); AudioLogger::instance().begin(Serial, AudioLogger::Warning); // register callback.

This circuit is designed to control multiple servo motors and DC motors using an Arduino UNO microcontroller. It includes a Bluetooth module for wireless communication and a Bluetooth audio receiver connected to an amplifier and a loudspeaker for audio output.

In the next tutorial, we’ll teach you how to configure the HC-05 using AT commands. And in the final tutorial, you’ll learn how to make two Arduino boards communicate wirelessly using HC-05 Bluetooth modules. By the end of these tutorials, you’ll have a good understanding of using the HC-05 Bluetooth module in your projects. So, let’s get started!

Apr 29, 2025 · How to pair Bluetooth module with a smartphone. The HC-05 module starts looking for devices right after your Arduino-Bluetooth circuit powers up. You'll see its LED blink faster at about 2 Hz. Getting connected is simple - just swipe down on your smartphone screen and make sure Bluetooth is on.