This tutorial will show you how to take soil moisture readings and then display those readings on an OLED as a happy, meh, or sad face, depending on how wet or dry the soil is.
The SparkFun Qwiic Multiport adds additional ports to boards that have only one Qwiic port on their I2C bus. Once added, you can use it as a hub to add as many I2C devices to the bus as you need [1] ! You can also use the board as an alternative to a daisy chained configuration.