R Raymond007 New Member Nov 14, 2008 #1 Hi Electronics newbie here. I found this PC thermometer circuit which uses thermistors connected to the game port (https://www.electro-tech-online.com/custompdfs/2008/11/pcthermometer.pdf). The temperature is logged using a Windows-based software. Is it possible to convert this thermometer to light intensity meter by replacing the thermistors with photocells? If so, how? Thank you very much. Attachments New Picture (3).jpg 58.1 KB · Views: 193
Hi Electronics newbie here. I found this PC thermometer circuit which uses thermistors connected to the game port (https://www.electro-tech-online.com/custompdfs/2008/11/pcthermometer.pdf). The temperature is logged using a Windows-based software. Is it possible to convert this thermometer to light intensity meter by replacing the thermistors with photocells? If so, how? Thank you very much.
Nigel Goodwin Super Moderator Most Helpful Member Nov 14, 2008 #2 Just replace the thermisters with LDR's, but it does depend on their values - try it and see.
Nigel Goodwin Super Moderator Most Helpful Member Nov 14, 2008 #4 sideburnz said: its wont be calibrated correctly Click to expand... Obviously not, how could a system calibrated in temperature be correct for light anyway - how bright is 47 degrees?
sideburnz said: its wont be calibrated correctly Click to expand... Obviously not, how could a system calibrated in temperature be correct for light anyway - how bright is 47 degrees?