I just got back into Arduino and electronics, and I wanted to make sure I know what I'm doing. I'm working with some coin hoppers that use opto interrupts to detect the coins being dispensed. Below is the schematic of how the sensor is in the hopper. If I understand correctly, I would just supply th…

Making Sure I Understand Opto Interrupt Sensors

Pelleplutt May 23, 2014, 7:37pm 2

Completely correct!

Just check the Current Transfer Ratio to calculate the pullup resistor.

Pelle

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