User's Manual

Bluetooth Low Energy Module
Shanghai Ehong Technologies Co., Ltd
6.3. AIO
14 AIOs are provided. They can be connected to internal 14 bits ADC. Their functions
depend on software.
6.4. PWM
6 PIOs can be driven by internal PWM module. The PWM module also works while the
module is sleep. So it can be used as a LED flasher. These functions are controlled by
special firmware.
6.5. UART
This is a standard UART interface for communicating with other serial devices and
Support UART hardware flow control.The UART interface provides a simple mechanism
for communicating with other serial devices using the RS232 protocol.
Table 7: Possible UART Settings
Figure 3： Connection To Host device
Parameter Possible Values
Baud Rate Minimum
1200 baud (≤2%Error)
9600 baud (≤1%Error)
Maximum 2M baud (≤1%Error)
Flow Control RTS/CTS
Parity None, Odd or Even
Number of Stop Bits 1 or 2
Bits per Byte 8