Re: This device is far less unreasonable than it seems.
> FWIW I've had a little input into developing LFDs for other uses, and they can be a challenge for everyone to read
Is there any inherent reason why a smartphone camera and flash can't be used for determine the colour of the test strip?
The test strip can be printed with colour calibration swatches, which an app can interpret.
Biting the hand that feeds IT
