MCP23017 I2C 16-Input/Output Port Expander 2305 Useful spec: 3

Useful spec: 3

Weight: 10

The board can also be powered through the VCC pin or the RAW pin

Q8: Can Jumper Wire 10Pin Dual-Female be used for data transfer

Another is that there's no error checking or bi-directional link - that means the remote doesn't know if the module received the message or not

MCP23017 I2C 16-Input/Output Port Expander 2305 Useful spec: 3Add another 16 pins to your microcontroller using a MCP23017 port expander. The MCP23017 uses two i2c pins (these can be shared with other i2c devices), and in exchange gives you 16 general purpose pins. You can set each of 16 pins to be input, output, or input with a pullup. There's even the ability to get an interrupt via an external pin when any of the inputs change so you don't have to keep polling the chip. Use this chip from 2. 7 5. 5V (good for