DSC04910 IR detec
thingiverse
IR Detector for Marble Track. This Detector Can Be Inserted Anywhere on Existing Marble Tracks. It Fits Precisely with Fischertechnik Blocks' Dimensions. The Detector Works Using an IR LED and a Photodiode as Receiver. Its 3D Printed Housing Shields Ambient Light Completely Possible. An Extra Cover Can Be Mounted Later If Necessary. It Has Five Mounting Possibilities for Optimal Environmental Suppression. Resistance Values Are Given for 5V Operation Only. For 9V Operation, Resistance Values May Need to Be Slightly Increased. Current Values Will Also Work at 9V But Current Will Be Higher. I Use a Standard 3-Pin Connection: Output, VCC, GND. Be Aware That Output Voltage Will Match Installed VCC Value Due to Pullup Resistor. Do Not Use 9V Where Maximum Output Voltage Should Remain Below 5V.
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