Now I have done the hardware part. I also 3d-printed a case for it.
Front light mod is quite popular among vintage handheld game console players. These machines usually have a reflective screen to save power, which is hard to read compared to other contemporary display technologies. And a front light is a quick and easy fix for that, also providing acceptable quality.
Here I got a front light module from an old PDA. Apparently it can be used to mod many different things!
This is actually a calculator of NorthernSnowX. It’s the first calculator to integrate the integral function. The power jack was broken by the time I received it. But it will work with the battery.
I decided to use my LCDs to build something. Maybe a RPN calculator?