Series: EWM104 (BT60 / BT61 variants)
Bluetooth Standard: BLE 5.2 (BT60) / BLE 5.4 (BT61) + BR/EDR Classic Bluetooth
Frequency: 2.4 GHz ISM band
Interface: UART (transparent serial transmission)
Audio: Stereo audio data transmission, broadcast mode supported
Role: BLE Slave module
Package Options: Stamp-hole SMD (SP2/SP3/SP/SX) & DIP test board (EWT104)
| Parameter | EWM104-BT60 (BLE 5.2) | EWM104-BT61 (BLE 5.4) |
|---|---|---|
| Bluetooth Version | BLE 5.2 + BR/EDR | BLE 5.4 + BR/EDR |
| Frequency Band | 2.4 GHz ISM | 2.4 GHz ISM |
| Interface | UART | UART |
| Audio Mode | Stereo, broadcast | Stereo, broadcast |
| BLE Role | Slave | Slave |
| Package (Module) | SP2: stamp-hole; SP3: stamp-hole | SX: stamp-hole; SP: stamp-hole |
| Package (Test Board) | EWT104-BT60 (DIP breakout) | EWT104-BT61SP (DIP breakout) |
| Operating Temp. | -40 to +85 ℃ | -40 to +85 ℃ |
| Supply Voltage | 3.3 V | 3.3 V |
| SKU | BT Version | Package | Price |
|---|---|---|---|
| EWM104-BT60SP2 | BLE 5.2 + BR/EDR | Stamp-hole SMD | $1.15 |
| EWM104-BT60SP3 | BLE 5.2 + BR/EDR | Stamp-hole SMD | $1.35 |
| EWT104-BT60 | BLE 5.2 + BR/EDR | DIP test board | $3.65 |
| EWM104-BT61SX | BLE 5.4 + BR/EDR | Stamp-hole SMD | $2.50 |
| EWM104-BT61SP | BLE 5.4 + BR/EDR | Stamp-hole SMD | $2.15 |
| EWT104-BT61SP | BLE 5.4 + BR/EDR | DIP test board | $6.20 |
BLE 5.2 / 5.4 + BR/EDR Dual-Mode — Classic & Modern Bluetooth in One Module
The EWM104 series integrates both BLE (Bluetooth Low Energy 5.2 or 5.4) and BR/EDR (Classic Bluetooth) in a single module. This dual-mode architecture allows simultaneous connection to legacy Bluetooth audio devices (headsets, speakers) and modern BLE IoT sensors or smartphones — eliminating the need for separate RF modules in mixed-protocol product designs.
Stereo Audio Data Transmission & Broadcast Mode
Supports stereo audio streaming over BR/EDR (A2DP profile) and BLE audio broadcast, enabling wireless speaker, earphone, and intercom applications. The UART transparent transmission interface allows any MCU to send and receive audio data without Bluetooth stack expertise — simply write to the serial port and the module handles all RF and protocol layers.
Stamp-Hole SMD & DIP Test Board — Prototype to Production
Each BT60/BT61 variant is available in both a compact stamp-hole SMD module (SP2/SP3/SX/SP) for production PCB integration and a DIP breakout test board (EWT104) with USB/UART interface for rapid evaluation. This dual-format offering shortens the development cycle: prototype with the test board, then migrate to the SMD module for mass production without firmware changes.
Ideal Applications
Frequently Asked Questions
Q: What is the difference between EWM104-BT60 and EWM104-BT61?
A: BT60 supports Bluetooth 5.2 (BLE 5.2 + BR/EDR), while BT61 supports the newer Bluetooth 5.4 standard. BT61 adds enhanced BLE features including improved broadcast audio (LE Audio / Auracast) and better coexistence. Both share the same UART interface and AT command set, so firmware migration between variants requires minimal changes.
Q: Can the EWM104 stream stereo audio wirelessly?
A: Yes. The module supports BR/EDR Classic Bluetooth audio (A2DP profile) for stereo streaming to Bluetooth speakers and headphones, as well as BLE broadcast audio mode for one-to-many distribution. The UART interface passes audio data transparently — no Bluetooth stack programming required on the host MCU.
Q: What is the difference between the SMD module (EWM104) and the test board (EWT104)?
A: The EWM104 is a compact stamp-hole SMD module for production PCB integration. The EWT104 is a DIP breakout board with USB/UART interface designed for evaluation, firmware testing, and AT command configuration without soldering. Both use identical firmware and AT commands.
Q: How do I configure the EWM104 module?
A: Configuration is done via AT commands over the UART interface (default baud rate: 9600). Parameters such as device name, pairing mode, audio profile, and baud rate can be set using the Ebyte configuration tool or any serial terminal. Refer to the EWM104 AT command manual available from Ebyte.
Q: Is the EWM104 compatible with iOS and Android smartphones?
A: Yes. As a standard BLE 5.2/5.4 + BR/EDR module, it is compatible with all iOS (iPhone) and Android devices that support Bluetooth. BLE mode works with custom apps via standard GATT profiles; BR/EDR mode connects as a classic Bluetooth audio device.
