Name: DSTIKE ESP32-DA Bluetooth Speaker — Dual-Antenna
Brand: DSTIKE
Price: 39.00 USD
Availability: InStock

DSTIKE ESP32-DA Bluetooth Speaker — Dual-Antenna

$39.00

Tracked worldwide shipping

Ships daily except Saturday

Estimated delivery 7–14 days

Open-Source ESP32 Bluetooth Speaker and Digital Audio Development Platform

The DSTIKE ESP32-DA is a compact, USB-powered Bluetooth speaker built around the ESP32-WROOM-DA-N16 module and MAX98357 digital I2S amplifier.

Connect it to a 5V USB power source, pair your phone or computer with DSTIKE-DA, and play audio through the integrated speaker. The open-source hardware and firmware also make it a practical platform for experimenting with Bluetooth audio, I2S output and custom ESP32 applications.

Key Features

ESP32-WROOM-DA-N16 controller
16MB flash memory
Dual onboard antenna design
Bluetooth wireless audio playback
MAX98357 digital I2S amplifier
Integrated 3W-class compact speaker
USB-A powered operation
Red and green connection-status indicator
Fully assembled and ready to use
Open-source firmware and documentation
Compatible with Arduino and ESP-IDF development

USB-Powered Bluetooth Audio

The speaker operates from a standard 5V USB power source and receives audio wirelessly over Bluetooth.

Basic setup:

Connect the speaker to a suitable 5V USB power source.
Wait for the status LED to turn red.
Open the Bluetooth settings on your phone, tablet or computer.
Select DSTIKE-DA.
When connected, the status LED turns green.
Start playing audio from the connected device.

The USB-A connection supplies power. The factory firmware does not make the device a USB sound card, and audio is not transmitted through the USB connection.

A USB power adapter or powered USB port is required.

Dual-Antenna ESP32-WROOM-DA Module

The ESP32-WROOM-DA uses two complementary onboard PCB antennas together with an antenna-diversity design.

Compared with a conventional single-antenna layout, this design can improve Bluetooth connection stability when device orientation, nearby objects or signal reflections affect reception. It is especially useful for desktop installations where the speaker or connected device may be moved or partially obstructed.

Actual Bluetooth range depends on:

The transmitting device
Device orientation
Walls and other obstacles
Nearby 2.4 GHz wireless activity
Electrical interference
USB power quality
Local environmental conditions

No fixed connection distance is guaranteed. For best results, keep the speaker away from large metal objects and avoid covering the antenna area.

Digital I2S Audio

Audio data is sent digitally from the ESP32 to the MAX98357 through the I2S interface.

The integrated amplifier drives the onboard compact speaker, providing clearer music and voice playback than a simple buzzer-based ESP32 project.

This is a compact mono development speaker intended for desktop listening, demonstrations and embedded-audio experiments. It is not designed to replace a high-power stereo or home audio system.

16MB Flash Memory

The ESP32-WROOM-DA-N16 provides 16MB of flash memory, offering more space than common 4MB ESP32 modules.

The additional capacity can be used for projects involving:

Larger custom firmware
Web interface files
Audio prompts and sound effects
Local data storage
Multiple application partitions
Over-the-air update partitions
ESPHome or IoT experiments

Available storage depends on the selected flash-partition layout. Local MP3 or WAV playback is not included in the factory firmware and requires custom development.

Connection Status Indicator

The onboard status indicator provides quick visual feedback:

Red: Powered on and waiting for a Bluetooth connection
Green: Bluetooth device connected

Status behavior can be changed by modifying the open-source firmware.

Hardware Specifications

Main controller: ESP32-WROOM-DA-N16
Flash memory: 16MB
Wireless connectivity: 2.4 GHz Wi-Fi and Bluetooth
Antenna system: Dual onboard PCB antennas
Audio interface: I2S
Audio amplifier: MAX98357
Audio output: Integrated compact speaker
Rated amplifier output: Up to approximately 3W under suitable power and load conditions
Power input: 5V through USB-A
Default Bluetooth name: DSTIKE-DA
Status LED: WS2812B RGB LED
Development support: Arduino and ESP-IDF compatible
Firmware: Open source
Assembly: Fully assembled

GPIO Reference

I2S LRCK / WS: GPIO 26
I2S BCLK: GPIO 27
I2S DIN: GPIO 14
WS2812B status LED: GPIO 4

Review ESP32 3.3V logic requirements and boot-pin behavior before modifying the hardware or connecting additional components.

Open-Source Development

The source code and project documentation are available here:

DSTIKE ESP32-DA GitHub repository

Developers can use the project as a starting point for applications such as:

Custom Bluetooth speakers
Wi-Fi audio receivers
Internet radio projects
Voice-notification devices
Smart-home audio alerts
Network-connected sound effects
Text-to-speech output
Embedded audio experiments

Uploading custom firmware will overwrite the factory program. Back up the original files and confirm the correct board, flash and pin settings before programming.

Some development projects may require additional programming hardware or connections that are not included.

Package Contents

1 × Fully assembled DSTIKE ESP32-DA Bluetooth speaker

USB power adapter and other accessories are not included.

Important Notes

This product requires a continuous 5V USB power connection.
It does not contain a rechargeable battery.
The USB connection is used for power with the factory firmware, not USB audio input.
Audio output is mono.
Maximum volume and sound quality depend on the USB power source and audio content.
Use a stable 5V power source and do not exceed the board’s rated input.
Keep the exposed electronics away from water, metal objects and conductive surfaces.
Bluetooth performance varies with the surrounding environment.
Custom firmware changes are performed at the user’s own risk.