Kevin Rye writes:
With version 3 of my Bare Bones Arduino boards off being fabbed, as well as the laser-cut acrylic, it was time to go ahead a design my first shield.
I have a ton of 7-segment displays that I’ve sourced over the years from various tear-downs of stuff from the garbage. I’ve been meaning to make something with them for years.
I have a DS18B20 temperature sensor that I’ve been meaning to make use of too. It almost made it into my GPS clock, but I ended up just using the temperature from the DS3231 RTC chip.
I figured it would be cool to just make something simple with it. I decided that I could easily make a shield for the BBA3 with 2 x 7-segment displays and I could pop it on my desk as a cheap little digital thermometer. It’s a one-trick pony, but at least I get to use up a few of those displays. Not to mention, the PCBs will only cost $3.70 a piece.
I got to work on a prototype. I connected a few 7-segment displays together and wired them to my Arduino.