[Working frequency]:2402~2480MHz
[Communication distance]:170m
[Product size]: 23*16mm
[Product weight]:1.3g±0.1g
[Introduction]:E104-BT53C3 is a serial-to-ble module based on ble protocol version 5.2. It has the characteristics of high temperature resistance, small size, low power consumption, long transmission distance, and strong anti-interference ability. It works in the 2.4GHz frequency band. The ble module is a car-grade ble module developed based on Silicon Labs' EFR32BG22C224F512IM40-C chip. It can be used for a long time in an environment of -40~+125°C. The ble module uses common AT commands, and the operation is simple and fast. ble 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.
pin number | Name | Function | Remarks |
1 | PB04 | I/0 | GPI0 |
2 | PB03 | I/0 | GPI0 |
3 | TXD | 0 | Module serial port sender |
4 | RXD | I | Module serial port receiver |
5 | PB00 | I/0 | GPI0 |
6 | PA00 | M0D | Mode configuration: input low level for more than 200ms, the module enters configuration mode: input high level for more than 200ms, the module enters transparent transmission mode. (This pin has an internal pull-up and works in transparent mode by default) |
7 | PA01 | SWCLK | users don't need to care |
8 | PA02 | SWDI0 | users don't need to care |
9 | PA03 | I/0 | GPI0 |
10 | PA08 | 0 | Indicates the connection status of the slave (including the role of Beac0n); the pin outputs a low level after the connection is successful; the output is a high level after the connection is disconnected |
11 | PA07 | 0 | Indicates the connection status of the host; the pin outputs a low level after the connection is successful; the output is a high level after the connection is disconnected |
12 | PA06 | RTS | (Standard hardware flow control Require T0 Send) module output signal, when it is high, it means that the serial port of the module is busy, and the MCU is not allowed to send data to the serial port of the module, and when it is low, it can send data to the module. |
13 | PA05 | CTS | Standard hardware flow control (Clear T0 Scnd) module input signal, when it is high, it means that the MCU serial port is busy, the module will not send data to the MCU serial port, and when it is low, it can send data to the MCU. |
14 | PA04 | REST0RE | Internal pull-up. Falling edge, and then keep the low level for at least 5 seconds, all parameters will be restored to factory settings and the module will automatically restart |
15 | VCC | l | Positive power supply, 1.71~3.8v, 3.3V recommended |
16 | PD03 | I/0 | GPI0 |
17 | PD02 | I/0 | GPI0 |
18 | PC00 | I/0 | GPI0 |
19 | PC01 | I/0 | GPI0 |
20 | PC02 | I/0 | GPI0 |
21 | PC03 | I/0 | GPI0 |
22 | PC04 | I/0 | GPI0 |
23 | PC05 | I/0 | GPI0 |
24 | PC06 | I/0 | GPI0 |
25 | PC07 | I/0 | GPI0 |
26 | RESET | - | Module reset pin, active low, internal pull-up |
27 | GND | - | modularly |
28 | GND | - | modularly |