[PRACTICAL&PROFESSIONAL]- For micro-controllers without an analog-to-digital converter or when you want a higher-precision ADC, the ADS1115 provides 16-bit precision at 860 samples/second over I2C. [CONFIGURED CHIP]- The chip can be configured as 4 single-ended input channels, or two differential channels. [2-5V POWER]- We like this ADC because the 12C PGA converter can run from 2V to 5V power/logic, can measure a large range of signals and its super easy to use, which is a great general purpose 16 bit converter. [EASY TO OPERATE]- The chip's fairly small so it comes on a breakout board with ferrites to keep the AVDD and AGND quiet. Interfacing is done via I2C. you can be up to 4 ADS1115's connect. Attracting and offering the for Raspberry Pi is an excellent little tablet that you can use to control digital inputs and outputs. But what do you do when you want to read an analog signal, such as from a thermistor, do not give up! By connecting a small analog-to-digital converter (ADC) chip to the Pi, you can open up the world of analog signals to your Raspberry Pi programs! So we designed an ADS1115 Pi ADC module to help you read analog signals. The ADS1115 provides 16-bit precision at 860 samples/sec over I2C. The chip can be configured as four single-ended input channels, or two differential channels. As a nice bonus, it even includes a programmable gain amplifier up to x16 to help boost smaller single/differential signals to full range. It is an excellent general purpose 16-bit converter. Works perfectly with any for Raspberry Pi, including Pi 1, Pi 2, Pi 3, Pi Zero, A+, B+, and more. Working voltage: 3.3v Programmable data Colour:blue Material:pvc Size:3 x 5cm Package Contents: 1 * ADS1115 beta version Only the above package content, other products are not included. Note: Light shooting and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.