Table of Contents
A/D Expansion PCB
Digital I/O Connectors
Description
A/D Expansion shield provide 2 Digital I/O connectors (DIO1, DIO2) which are use 4 digital pins to implement up to 4 digital output transistor controled line or up to 4 resistor puled digital input line (DS18xxx, DHTxx, …).
Used Pins
Digital Pin: 37, 39, 41, 43
Power Pin: GND, +5V
Connectors
Selection Terminals
