E104-BT5005A Certified BLE 5.0 Bluetooth Module Manufacturers with OEM Service ibeacon Bluetooth Module Nordic nRF52805
[IC]：nRF52805
[Frequency]：2.402~2.480GHz
[Protocol]：BLE5.0
[Size]：9*9mm
[Weigth]：0.35g
[Introduction]：[Introduction]：E104-BT5005A is a serial to BLE Bluetooth master-slave integrated module based on Bluetooth protocol version 5.0. It is small in size and low in power consumption. It works in the 2.4GHz frequency band.
| No. | Pin item | Direction | Function | Application |
|---|---|---|---|---|
| 1 | SWDIO | -- | -- | -- |
| 2 | SWCLK | -- | -- | -- |
| 3 | P0.21/RST | Input | Power reset | Active low |
| 4 | VCC | -- | -- | The power supply is positive, the recommended power supply voltage>=3.3V |
| 5 | GND | -- | -- | Power ground |
| 6 | DISC（P0.12） | Input | Disconnect pin | Internal pull up. Active on falling edge |
| 7 | WKP（P0.05） | Input | Wake-up pin | Wake up: falling edge;Sleep: rising edge |
| 8 | P0.00 | Input/Output | -- | General GPIO |
| 9 | MOD（P0.04） | Input | Mode selection | Low level: configuration mode; High level: transparent transmission mode. |
| 10 | P0.01 | Input/Output | -- | General GPIO |
| 11 | RXD（P0.20） | Input | UART RX pin | -- |
| 12 | TXD(P0.14) | Output | UART TX pin | -- |
| 13 | LINK (P0.16) | Output | Connection Status | Bluetooth connectivity：Low level Bluetooth is not connected：High level |
| 14 | GND | -- | -- | Grand |
| 15 | DATA (P0.18) | Output | Data indication | Data indication pin, when the module outputs data through the serial port, the module sets the DATA pin to low level, indicating that data is being sent. AT command response does not change the DATA pin state. |