SW8B GPIO and ADC I2C Expander and Embedded Coprocessor Serial Wombat PCB0029 Kit with Headers and Solder Jig 16-Pack

Easily add 8 more I/O or A/D channels to your project through I2C. On board solder-jumpers allow selection of 16 different addresses, and optional 2200 ohm bus pull-up resistors ^^ Many support videos and extensive documentation available online. ^^ Each pin runs a state machine that can be assigned a specific function such as Servo, Rotary Encoder, A/D conversion, UART Bridge, PID control, PWM Generation, Kepad decoding, Frequency output, button debouncing, pulse timing and much more ^^ Use up to 16 boards on the same I2C Bus ^^ Open source hardware and software, certified by the Open Source Hardware Association ^^ 3.3V or 5V operation.

5V operation is possible while communicating on a 3.3V I2C bus, allowing mixed voltage circuits or analog inputs. ^^ Preprogrammed I2C Bootloader allows in-circuit upgrades when new firmware is released