I2C Bus; Network Indication Interface - YUGE LPM2100 bg Series Usage Manual

LPM2100 bg NB Module Hardware Usage Guide

3.10 I2C bus

The LPM2100 bg series module provides a set of hardware 5.0 protocol bidirectional
serial bus with a clock rate of 400KHZ and an interface voltage of IO output level.
Pin Pin name
32 SCL
33 SDA
I2C reference circuit as shown below：
The I2C_SCL and I2C_SDA pins are internally pulled up, so the external pull-up resistor
can be ignored during use.

3.11 Network indication interface*

The LPM2100 bg series module provides a NETLIGHT pin to indicate network
communication status and can be used to drive LED lights that indicate network status.
Pin Pin name
Shanghai Yuge Information Technology Co., Ltd.
Figure 3-17 SPI write timing diagram
Table 3-12 I2C pin definition
IO Functional description
DO I2C bus clock output
IO I2C bus data input and output Internal resistance pull-up
Figure 3-18 I2C interface reference circuit
Table 3-13 Network indicator pin definition
I/O
Remarks
Internal resistance pull-up
Description
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