IO Expander Breakout

Add oodles of extra analog-friendly input and output pins to your Raspberry Pi project! This breakout uses a clever Nuvoton MS51 microcontroller and some I2C magic to give you a whopping 14 additional input/output pins to connect things up to. Eight of the pins are hooked up to an Analog to Digital Converter so you can easily use old skool analog sensors with your Raspberry Pi, as well as passive components that use an analog signal (like light dependent resistors). Six of the pins can be used as (up to 16-bit) PWM outputs – great for controlling devices that require a simulated analog output, like servos or non-addressable LEDs.