[IC]：CC2640R2L
[Frequency]：2.402~2.480GHz
[Protocol]：BLE5.0
[Distance]：50m
[Size]：16*11.5mm
[Feature]：E104-BT51A is a serial port to BLE Bluetooth slave node module that supports Bluetooth protocol version 5.0. It is small in size and low in power consumption. It works in the 2.4GHz frequency band.
| Para.Name | Description | Spec. |
| Reference distance | 50m | Clear and open environment, 1.5 meters in height |
| Launch length | 128Byte | - |
| Bluetooth protocol | BLE5.0 | - |
| Communication Interface | UART serial port | - |
| Packaging method | SMD | - |
| Interface method | 1.27 mm | - |
| Dimensions | 16*11.5mm | - |
| Antenna type | Ceramic antenna | Equivalent impedance is about 50Ω |
| Para.Name | Min. | Typ. | Max. | Unit | Spec. |
| Working voltage | 1.8 | 3.3 | 3.8 | V | ≥3.3V can guarantee output power |
| Communication level | - | 3.0 | - | V | Using 5V level is risky to burn |
| Working temperature | -40 | - | +85 | ℃ | Industrial design |
| Working frequency | 2402 | - | 2480 | MHz | Support ISM frequency band |
| Emission current | - | 11.5 | - | mA | @5dBm |
| Receiving current | - | 7.5 | - | mA | - |
| Sleep current | - | 2 | - | μA | Standby |
| Maximum transmit power | 4.5 | 5 | 5.5 | dBm | - |
| Receiving sensitivity | -95 | -96 | -97 | dBm | Air rate is 1Mbps |
| Sleep broadcast current(default) | - | 18.72 | - | uA | Unit: uA. Broadcast gap is 1s |
| Wake up broadcast current(default) | - | 1581 | - | uA | Unit: uA. Broadcast gap is 1s |
| Wake up without broadcast current(default) | - | 1440 | - | uA | Unit: uA. |
| Wake-up connection current(default) | - | 1450 | - | uA | Unit: uA. Connection gap 1s |
| Sleep connection current(default) | - | 4.76 | - | uA | Unit: uA. Connection gap 1s |
| Pin No. | Pin Name | Pin Type | Pin Function | Pin Specifications |
| 1 | GND | Input | Power ground wire | -- |
| 2 | NC | -- | NC | -- |
| 3 | NC | -- | NC | -- |
| 4 | MODE | Input | Mode selection | Falling edge: configuration mode. Rising edge: transparent transmission mode. |
| 5 | WAKEUP/SLEEP | Input | Wake-up pin | Wake-up: falling edge. Sleep: rising edge. |
| 6 | DIO_2 | Output | OUTPUT0 | User GPIO output pin 0 |
| 7 | LINK | Output | Connection Status | Bluetooth connection: low level. Bluetooth no connection: high level |
| 8 | DATA | Output | Data indication | Data indication pin |
| 9 | GND | -- | Power ground | -- |
| 10 | TMSC | -- | NC | Hang in the air, customers don’t need to care |
| 11 | TCKC | -- | NC | Hang in the air, customers don’t need to care |
| 12 | DIO_6 | Output | OUTPUT1 | User GPIO output pin 1 |
| 13 | DIO_5 | Output | PWM0 | User PWM output pin 0 |
| 14 | DIO_7 | Output | PWM1 | User PWM output pin 1 |
| 15 | DIO_8 | Input | ADC2 | Bluetooth service battery voltage acquisition pin |
| 16 | GND | -- | Power ground | Power ground |
| 17 | VCC | -- | Power is positive | Power is positive |
| 18 | RXD | Input | UART RX pin | -- |
| 19 | TXD | Output | UARTTX pin | -- |
| 20 | DIO_12 | Output | ADC0 | ADC acquisition pin 0 |
| 21 | DIO_13 | Input | ADC1 | ADC acquisition pin 1 |
| 22 | nRESET | Input | Power reset | Active low |
| 23 | NC | -- | -- | -- |
| 24 | NC | -- | -- | -- |
| 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 |
