E104-BT08 Low Energy Bluetooth Module to Serial Port Industrial grade, low cost and high cost performance
[Bluetooth protocol]：BLE 5.1
[Communication distance]： 60m
[Product size]：10*10mm
[Introduction]：E104-BT08 is a serial-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 | P24 | input /Output | General GPI0 port |
| 2 | P26 | input /Output | General GPI0 port |
| 3 | P32 | output | Data pin, it will be at high level when there is data interaction |
| 4 | P33 | input /Output | General GPI0 port |
| 5 | P0 | input /Output | General GPI0 port |
| 6 | P1 | input /Output | General GPI0 port |
| 7 | P3 | input /Output | General GPI0 port |
| 8 | P7 | output | LINK pin, high level after connection |
| 9 | P9 | input /Output | Communication TXD |
| 10 | P10 | input /Output | Communication RXD |
| 11 | GND | power ground | power ground |
| 12 | GND | power ground | power ground |
| 13 | VDD | enter | Support 1.8-3.6V power supply, ≥3.3V can guarantee output power |
| 14 | VDD | enter | Support 1.8-3.6V power supply, ≥3.3V can guarantee output power |
| 15 | P15 | input /Output | General GPI0 port |
| 16 | P18 | input /Output | General GPI0 port |
| 17 | RST_N | enter | Reset pin, active low |
| 18 | P20 | input /Output | General GPI0 port |
| 19 | P16 | input /Output | General GPI0 port |
| 20 | P17 | enter | Restore the factory pin, pull the level down for 3s to restore the factory |
| 21 | GND | power ground | power ground |
| 22 | GND | power ground | power ground |
| 23 | P11 | input /Output | General GPI0 port |
| 24 | P10 | input /Output | General GPI0 port |
| 25 | TM | Program download mode | High level for program download, low level for normal operation |
| 26 | P2 | enter | Wake-up pin, falling edge wakes up immediately |
| 27 | P34 | input /Output | General GPI0 port |
| 28 | P31 | input /Output | General GPI0 port |
| 29 | P25 | input /Output | General GPI0 port |
| 30 | P23 | input /Output | General GPI0 port |