28-02-2017, 03:44
(27-02-2017, 10:07)Palmyweather Wrote: I would have hoped that one Arduno would perform similar to the next, especially when you buy them from the same supplier. Must make a note to not use my spare Nano in future for any weather projects.
As seen, that is not always truth. Probably for you to use the new one, the solar / UV sensor should be recalibrated again, perhaps just in the software. Even in the dark, the Solar / UV sensor always output some voltage, with some Arduinos the default value hard coded in the software to compensate for this is not enough. Take a look on the RX software, RX_TX section and you will find a line of code where this compensation is done. Basically it discards readings below a given threshold.
Users can then modify the next line of code and set the selected threshold as a new zero point.