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Name
Description
Comment
Name
Description
Comment
IO Connector Pin Order
Figure 15 shows the IO connector’s pin order. The connector is located in the bottom layer of the RAK1920
module.
Figure 15: IO connector’s pin order
Last Updated:
7/29/2022, 10:17:19 PM
VBAT
Battery output voltage
Maximum: 4.2 V
3V3
3.3 V
Default, sensor power supply
TXD1/RXD1
UART interface
Connected only to the Click Boards connector.
CS/SCK/MOSI/MISO
SPI interface
Connected only to the Click Boards.
SDA/SCL
I2C interface
All I2C sensors
AIN0/AIN1
ADC input interfaces
Grove or click Boards
INT
Hardware Interrupt
Connected only to the Click Boards connector.
RST
Reset
Connected only to the Click Boards connector.
PWM
PWM input
Connected only to the Click Boards connector.
EN
Boost Converter Enable
IO5
IO1/IO3
General purpose I/O
Connected to Grove digital I/O sensors’ connectors.