Baruch Even

The result of gettimeofday is the wall clock which can change backwards in some occassions (time drifted and ntp re-enabled). In that case timeouts may not expire for a while...

Implement pwdhash as a keyboard

4

I've seen that keepass4android implements an android keyboard probably so it can input the data directly. That would be very nice also for pwdhash. I have at least one app...

Use the buttons

4

Find how to make use of the buttons and integrate them into a UI that doesn't necessarily depend on the serial port.

Alert when the unit is fed below 6V

2

Accurate will suffer considerably if the unit is fed less than 6V and it gets pretty inaccurate once you go below 5V. The device should alert about this, it should...

The top board can be inserted reversed and it seems to work. The ADC shows up saturated with a raw reading of 1023 and this can be detected and maybe...

Create a text user interface

3

To make it easier to follow what happens in real-time it would be nice to have a text user interface with the likes of curses to show a continuously screen...

Implement a write test

2

A write test needs to be implemented for the rare occasion when writes fail. possibly do a read after the write to verify the write.

Sometimes a disk has pending reallocations that are not for medium errors and in order to clear them up one needs to read the data and write it back unmodified....

Create a GUI

1

Consider using QT to create a gui to allow it to be as cross-platform as possible.