User's Manual

Chengdu Ebyte Electronic Technology Co., Ltd E104-BT5032A User Manual

In actual applications, the MTU value of different devices will be different. For example, the iPhone's MTU is 185 bytes, and

users cannot change it.

2.1.3 Distance response for data rate

With ceramic antenna，compared with PCB antenna, ble signal on external antenna has poor TX and RX ability. The longer the

distance, the slower the data rate.

2.1.4 Module advertises data in multi-connection

The module supports multiple connections. In multi-connection advertising, the module sacrifice communication speed in order

to ensure data reliability. Multi-connection advertising rate is the lowest rate among multiple connections.

2.1.5 Flow control（CTS）and low power

If the module serial port is configured for flow control mode and CTS is disabled (CTS pin is high), the module cannot enter the

low power consumption mode. As a solution, after CTS is asserted (CTS pin is low), low power consumption is entered through pins

or instructions.

2.1.6 The master data transmission rate is lower than the slave data transmission rate

The slave sends data using the notification method to send data, the data sending rate is fast, while the master sends

data using the write response method, the data sending rate is slow.

2.1.7 Solution to abnormal power consumption caused by MOD pin in low power consumption mode

This method is only for versions below V1.3, excluding V1.3.

Module switching method.

Set the MOD pin only before the data is sent. No operation after the data is sent.

For example:

a) Send AT command.

STEP1, set the pin to low level;

STEP2, send AT command;

STEP3, complete the data transmission.

b) Send data

STEP1, set the pin to high level;

STEP2, send data through UART;

STEP3, data transmission is completed.