Tag Archives: electronics

(Opto) Photo Interrupter – pushing the limits

The z1670 photo interrupter from altronics ships with a 3mm gap through which an obstacle must pass to trigger a voltage drop that can be detected as  digital state change by something like an arduino. What if you want a wider … Continue reading

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(Opto) Photo Interrupter – working properly as DIGITAL input to Arduino DUE

The z1670 photo interrupter from altronics is actually a BPI-3C1-13 by bright led electronics corp. This is how you connect it to an Arduino digital input at +5V. I’m using an Arduino DUE so I used an external +5v power supply … Continue reading

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(Opto) Photo Interrupter – first look

Yay – my first electronic ‘explosion’ courtesy of an (ex) Photo Interrupter! In a hurry to have my first try at an optical switch, purchased yesterday from JayCar I did the following: I used this zd1901 photo interrupter from JayCar … Continue reading

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