E104-BT5011A Ebyte nRF52811 module test board kits USB interface adapter bluetooth to UART wireless module ble5.0 ble5.1
[IC]：nRF52811
[Frequency]：2.402~2.480GHz
[Protocol]：BLE5.1
[Distance]：70m
[Size]：11.5*16mm
[Weight]：0.8±0.1g
[Introduction]：E104-BT5011A is a serial to BLE Bluetooth master-slave integrated module based on Bluetooth protocol version 5.1. It is small in size and low in power consumption. It works in the 2.4GHz frequency band.
| No. | Item | Direction | Application | Remarks |
|---|---|---|---|---|
| 1 | GND | Input | Ground | - |
| 2 | P0.25 | - | NC | - |
| 3 | P0.26 | - | NC | - |
| 4 | MOD | Input | Mode selection | Low level：configuration mode；High level：transparent mode |
| 5 | WKP | Input | Wake up pin | Wake up：falling edge；Sleep：rising edge。 |
| 6 | DISC | Input | Connection pin disconnected | Internal pull up. Valid in |
| 7 | LINK | Output | Link status | Ble link：low level No ble link：high level |
| 8 | DATA | Output | Data indicator | 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. |
| 9 | GND | - | Ground | - |
| 10 | P0.02 | - | NC | - |
| 11 | P0.03 | - | NC | - |
| 12 | P0.04 | - | NC | - |
| 13 | P0.05 | - | NC | - |
| 14 | P0.06 | - | NC | - |
| 15 | P0.07 | - | NC | - |
| 16 | GND | - | Ground | Ground |
| 17 | VCC | - | Power | Power |
| 18 | RXD | Input | UART RX pin | - |
| 19 | TXD | Output | UART TX pin | - |
| 20 | RTS | Output | Flow control | Internal pull up |
| 21 | CTS | Input | Flow control | Internal pull up |
| 22 | P0.21/RST | - | Power reset | Valid in low level |
| 23 | SWDCLK | - | - | - |
| 24 | SWDIO | - | - | - |