E104-BT07 Low-cost BLE Bluetooth wireless module low power consumption 2.4G small size serial port data transmission
[Bluetooth protocol]：BLE 5.1
[Communication distance]：130m
[Product size]：21.9*14.6mm
[Introduction]：E104-BT07 is a serial port to BLE Bluetooth module based on Bluetooth protocol version 5.1. It is small in size, low in power consumption, and works in the 2.4GHz frequency band. Bluetooth modules can be widely used in smart wear, home automation, home security, personal health care, smart home appliances, accessories and remote controls, automobiles, lighting, industrial Internet, smart data acquisition, smart control and other fields.
| No | Pin | Pin Direction | Remarks |
| 1 | GND | power ground | power ground |
| 2 | P19 | input Output | General GPIO port |
| 3 | P23 | input Output | General GPIO port |
| 4 | P24 | input Output | General GPIO port |
| 5 | P2 | enter | Wake-up pin, falling edge wakes up immediately |
| 6 | P34 | input Output | General GPIO port |
| 7 | P33 | input Output | General GPIO port |
| 8 | P9 | input Output | Communication TXD |
| 9 | P10 | input Output | Communication RXD |
| 10 | P31 | input Output | General GPIO port |
| 11 | P32 | input Output | Data pin, it will be at high level when there is data interaction |
| 12 | GND | output | power ground |
| 13 | VDD | enter | Support 1.8-3.6V power supply, ≥3.3V can guarantee output power |
| 14 | P14 | input Output | General GPIO port |
| 15 | P11 | input Output | General GPIO port |
| 16 | P7 | input Output | LINK pin, high level after connection |
| 17 | P3 | input Output | General GPIO port |
| 18 | P18 | input Output | General GPIO port |
| 19 | P17 | enter | Restore the factory pin, pull the level down for 3s to restore the factory |
| 20 | P16 | input Output | General GPIO port |
| 21 | P15 | input Output | General GPIO port |
| 22 | GND | power ground | power ground |