[IC] : -
[Frequency] : 2.400~2.480GHz
[Protocol]：V4.2+V3.0 SPP
[Distance]：30m
[Size]：21*13mm
[Weight] : 0.8±0.1g
[Feature]：E104-BT40 module is a serial to dual-mode Bluetooth slave module based on Bluetooth 4.2 + 3.0 version, namely low power consumption Bluetooth BLE and classic Bluetooth SPP Profile, which can freely switch between BLE and Classic Bluetooth, working at 2.4GHz.
| Main Parameter | Value | Remark |
| Working frequency | 2400 ~2480 MHz | - |
| Transmitting power | 3 dBm | - |
| Receiving sensitivity | -96 dBm | - |
| Reference distance | 30m | - |
| Hardware Parameter | Value | Remark |
| Size | 21 *13 mm | - |
| Antenna | PCB | 50Ω Impedance |
| Communication interface | UART | All I / Os of the microcontroller are exported, see the chip manual for details |
| Package | SMD | - |
| Electronic parameter | Min. | Typ. | Max. | Unit | Condition |
| Operating voltage | 2.5 | 3.3 | 3.6 | V | ≥3.3 V ensures output power |
| Communication level | - | 3.3 | - | V | For 5VTTL, it may be at risk of burningdown |
| Idle state | 3.9 | - | 6 | mA | - |
| BLE connection | - | 3.26 | 9.2 | mA | - |
| SPP connection | - | 6.78 | 9.2 | mA | - |
| Operating temperature | -40 | - | +85 | ℃ | - |
| Pin No. | Definition | Direction | Function | Description |
| 1 | GND | - | Power supply | Power supply reference |
| 2 | TXD | Output | Serial datatransmission | Module outputs serial data to external |
| 3 | RXD | Input | Serial datareception | Module receives external serial data |
| 4 | P02 | Output | General output IO | User can set output level |
| 5 | P03 | Output | General output IO IO | User can set output level① |
| 6 | P04 | - | - | NC |
| 7 | P05 | - | - | NC |
| 8 | P06 | - | - | NC |
| 9 | P07 | - | - | NC |
| 10 | GND | - | Power supply | Power supply reference |
| 11 | P10 | Input | General input IO | User can read IO level,internal pull-up |
| 12 | P11 | Input | General input IO | User can read IO level,internal pull-up |
| 13 | PWM2 | Output | Output PWM | User configures output PWM wave |
| 14 | PWM3 | Output | Output PWM | User configures output PWM wave② |
| 15 | P33 | - | CTS | - |
| 16 | P34 | - | RTS | - |
| 17 | VCC | - | 3.3V | Power supply input |
| 18、19 | GND | - | Power supply | Power supply reference |
| 20~22 | NC | - | - | - |
| 23 | RST | - | Reset pin | Active low level |
| 24 | STATUS | Output | State indicator LED | Bluetooth is not connected: output frequency is 1Hz square wave Bluetooth is connected: Low level |
| 25 | MODE | Input | Mode selection | Low level: configuration mode ③ High level: transparent transmission mode |
| 26 | DISC | Input | Disconnection | Internal pull-up, valid on falling edge |
| 27 | LINK | Output | Connection state | Bluetooth is not connected: high level Bluetooth is connected: Low level |
| 28 | GND | - | Power supply | Power supply reference |
①The user can configure output IO default output low level. After setting, the output level will still be output according to the set parameters after the next power-on;
② The PWM is turned off by default. After setting, the PWM will still be output according to the set parameters after the next power-on;
③Mode pin switching mode is only valid after connection established.
| Order online |
| 【eBay】：https://www.ebay.com/usr/cdebyte |
| 【Aliexpress】：https://www.aliexpress.com/store/2798183 |
| 【Alibaba】：https://www.alibaba.com |
| For batch order/customized product |
| 【Sales hotline】：+86-28-61399028 Ext.812 |
| 【E-mail】：service@cdebyte.com |
| Technical support |
| 【Submit online】：http://www.ebyte.com/en/apple-technology.aspx |
| 【E-mail】：support@cdebyte.com |
| Model | Interface | IC | Frequency Hz | Power dBm | Distance m | communication protocol | Package | Size (mm) | Feature | Manual | Sample |
|---|---|---|---|---|---|---|---|---|---|---|---|
| E104-BT54S | UART | BLUENRG355MC | 2.4G | 8 | 0.3 | BLE 5.1 | IPEX,PCB antenna | 28*16*2.7 | New Bluetooth Module | ||
| E104-BT53A3 | UART | EFR32BG22C224F512GM32 | 2.4G | 6 | 0.12 | BLE 5.2 | PCB | 13*19 | Low power,BT5.2 | ||
| E104-BT12LSP-TB | USB | - | - | - | - | - | - | 46.5 * 26 | E104-BT12LSP module test board | ||
| E104-BT12NSP | UART | TLSR8253F512 | 2.4G | 10 | 60 | - | PCB | 19*13 | SigMesh self-organizing network | ||
| E104-BT12LSP | UART | TLSR8253F512 | 2.4G | 10 | 60 | - | PCB | 19*13 | SigMesh self-organizing network | ||
| E104-BT5040UA | USB | nRF52840 | 2.4G | 8 | 0.25 | BLE 4.2/BLE 5.0 | PCB | 59 * 18 | Bluetooth SoC，USB | ||
| E104-BT5005A | UART | nRF52805 | 2.4G | 4 | 0.07 | BLE 5.0 | Ceramic antenna | 9*9 | Ultra-slim size，transparent | ||
| E104-BT5040U | USB | nRF52840 | 2.4G | 8 | 0.25 | BLE 4.2/BLE 5.0 | PCB | 59 * 18 | Bluetooth SoC solution, USB interface | ||
| E104-BT5011A | UART | nRF52811 | 2.4G | 4 | 0.07 | BLE 5.1 | Ceramic antenna | 11.5 * 16 | Long Range feature, transparent transmission | ||
| E104-BT52 | UART | DA14531 | 2.4G | 0 | 0.09 | BLE 5.0 | PCB | 14.5*10 | Low energy Bluetooth to UART module | ||
| E104-BT51A | UART | CC2640R2L | 2.402~2.480GHz | 5 | 50 | BLE5.0 | PCB | 16*11.5mm | Low power Bluetooth to serial module | ||
| E104-BT06 | UART | - | 2.4G | 3 | 0.08 | BLE 4.2 | PCB | 27*13 | low-power consumption | ||
| E104-BT11 | UART | EFR32MG21 | 2.4G | 20 | 200m(PCB antenna)/300m(IPX antenna) | BLE Mesh | PCB/IPX | 19*13mm(PCB version)/16*13mm(IPX version) | SigMesh Ad hoc network | ||
| E104-BT53A1 | UART | EFR32BG22 | 2.4G | 6 | 0.12 | BLE 5.2 | PCB | 13*19 | Low power consumption, Bluetooth 5.2 | ||
| E104-BT40 | UART | - | 2.4G | 3 | 0.03 | V4.2+V3.0 SPP | PCB | 21*13 | Dual-mode Bluetooth module | ||
| E104-BT51 | UART | CC2640R2F | 2.4G | 5 | 0.75 | BLE 5.0 | PCB/IPX antenna | 17.5*28.7 | Low-power transparent transmission | ||
| E104-BT30 | - | CSRA64215 | 2.4G | 9 | 0.05 | V4.2+EDR | PCB | 25 *16 | BLE audio transmission | ||
| E104-BT5010A | UART | nRF52810 | 2.4G | 4 | 0.055 | BLE 5.0 | Ceramic antenna | 11.5 * 16 | Bluetooth UART Transparent module | ||
| E104-BT5032A | UART | nRF52832 | 2.4G | 4 | 0.06 | - | Ceramic antenna | 11.6 * 16 | Ultra low power consumption,Transparent transmission | ||
| E104-BT05 | UART | TLSR8266 | 2.4G | 8 | 0.7 | BLE 4.2 | PCB | 10 * 14.5 | Low power,Continuous transmission | ||
| E104-2G4U04A | USB | CC2540 | 2.4G | 4 | 0.06 | BLE 4.0 | PCB | 59 * 18 | Bluetooth SoC solution, USB | ||
| E104-BT02 | UART | DA14580 | 2.4G | 0 | 0.1 | BLE 4.2 | PCB | 14*22 | Low power,Continuous transmission | ||
| E104-BT01 | UART | CC2541 | 2.4G | 0 | 0.05 | BLE 4.0 | PCB | 14*22 | Low power |
