LPWA Module Series
BG95 Hardware Design
BG95_Hardware_Design 52 / 80
Table 23: Characteristics of ADC Interfaces
1. ADC0 and ADC1 cannot be used simultaneously. BG95 supports using of only one ADC interface at
a time: either ADC0 or ADC1. Currently only ADC0 is enabled, and ADC1 will be enabled in the next
hardware design version.
2. ADC input voltage must not exceed 1.8V.
3. It is prohibited to supply any voltage to ADC pin when VBAT is removed.
4. It is recommended to use resistor divider circuit for ADC application, and the divider resistor accuracy
should be no less than 1%.
3.17. GPIO Interfaces
The module provides six general-purpose input and output (GPIO) interfaces. AT+QCFG=
"gpio"*
command can be used to configure corresponding GPIO pin’s status. For more details about the AT
command, please refer to document [2].
Table 24: Pin Definition of GPIO Interfaces
Parameter Min. Typ. Max. Unit
ADC0/ADC1 Voltage Range 0.3 1.8 V
ADC0/ADC1 Resolution 64.979 uV
ADC0/ADC1 Sampling Rate 4.8 MHz
Pin Name Pin No. Description
GPIO16 16 General-purpose input and output interface
GPIO25 25 General-purpose input and output interface
GPIO26 26 General purpose input and output interface
GPIO64 64 General purpose input and output interface
GPIO65 65 General purpose input and output interface
GPIO66 66 General purpose input and output interface
NOTES
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