[attachment=242][attachment=243]Hi looking at these solar radiation sensors, I attach a very basic schematic (as far as I can see it.) and a few pictures of the layout of a Davis 7821 sensor. There are a few other things to consider.
a) The diffuser (any ideas on material.?)
b) The double housing which allows an air flow around the sensor inner housing.
Other info: http://www.davisnet.com/support/weather/...sp?dtype=2
7821
Can this, or similar work on weatherduino?