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diff --git a/Analog Photoreactor Controller Schematics/Analog PR Controller.sch-bak b/Analog Photoreactor Controller Schematics/Analog PR Controller.sch-bak
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@@ -0,0 +1,503 @@
+EESchema Schematic File Version 4
+EELAYER 30 0
+EELAYER END
+$Descr A4 11693 8268
+encoding utf-8
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+Text Notes 1850 3950 0    50   ~ 0
+ I’ve added a trim pot to control the driver. It should output constant 330 mA to LEDs.
+$EndSCHEMATC