Here's an overview of the key features and components of this development board:

ADS1115 ADC: The core component of the board is the ADS1115, a 16-bit analog-to-digital converter manufactured by Texas Instruments. It provides high-resolution digital conversion of analog signals and supports up to four differential or single-ended input channels.

Four Input Channels: The board typically allows you to connect up to four analog input signals, making it suitable for multi-channel data acquisition or sensor interfacing applications.

Programmable Gain Amplifier (PGA): The ADS1115 often includes a built-in programmable gain amplifier with selectable gain settings. This feature allows you to amplify or attenuate input signals to match the ADC's dynamic range.

I2C Communication: The ADS1115 communicates with a microcontroller or other host devices via the I2C (Inter-Integrated Circuit) communication protocol. This is a popular serial communication interface for connecting various components in embedded systems.

Power Supply: Typically, the development board requires a power supply voltage, usually in the range of 2.0V to 5.5V, depending on the specific ADS1115 version.

Configuration and Control: You can configure various ADC parameters, such as input channel selection, gain settings, and data rate, through software control via the I2C interface. This allows you to adapt the ADC to different measurement requirements.

GPIO Pins: Some versions of this development board may provide additional GPIO (General-Purpose Input/Output) pins for interfacing with external components or indicators.