As I embark on my first Arduino project, I have lots of questions. Specifically, what considerations should I make when selecting equipment, and what are the critical parameters to safe operation?
Some elaboration upon my questions can be seen below. However, outlining general principals of equipment selection would be highly useful.
I have an Arduino Uno. The Uno has an input voltage of 6-20 V, and operating voltage of 5 V as from the tech specs. Does this mean that I can select any sensor with less than 20 V output to send data to my Arduino?
I am interested in using a sensor like this Texas Instruments HDC1080 High Accuracy Digital Humidity Sensor, which has a supply of 5.5 V. If my logic is correct, this output should be fine. I should know whether or not I need to buy some sort of shield based purely upon the output pins of the sensor, correct? I know I have 6 analog and 6 PWM/digital pins on the Arduino, so the digital signal should be capable of being processed by my Arduino. However, the interface type on the sensor product is I2C, but I am unsure as to what this means or if it needs to be a consideration.