this is for holding javascript data
Sgt. Samuel H. Buckstein added sensor array part 3.tex
about 10 years ago
Commit id: 590026fb670ef88c551f4bf98e8fb7418796907e
deletions | additions
diff --git a/sensor array part 3.tex b/sensor array part 3.tex
new file mode 100644
index 0000000..261cdbb
--- /dev/null
+++ b/sensor array part 3.tex
...
The revised sensor array solved the issue of unequal grounds, but even at distance, the IR light was being detected by the photodiodes used for flickering detection.
It was then decided to remove the IR presence detection system entirely, and instead use the photodiode to detect both presence and flickering.
This was accomplished by again removing the sensor array and mounting a series of super-bright LEDs beneath the tray, one LED per well. The LEDs provided a gradient of light that allowed the PIC to distinguish whether a candlelight was present or not beneath the light sensor by comparing the voltage seen by the PIC when no candlelight obstructed the LED from the light sensor against the lower voltage seen when a candlelight obstructed the light path. The LEDs were mounted on the switch activation frame. This solution finally solved the light interference issue and simplified the sensor array by elimination half of the circuitry.
