When it comes to small screens, you can’t ask for much more than what a quality OLED offers. This 20×4 character alphanumeric I2C OLED shield for the Arduino MKR series is a perfect example.
It operates at 3.3V, so you can power the screen from a lithium battery. Compared to LCD screens, this has a wider temperature range, allowing it to function in below freezing conditions. It’s a great fit for outdoor projects as a result.
The product arrives as a soldered MKR shield that’s ready to use.