Monthly Archives: November 2013

(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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Frankensteining old Internode router for WiFi on Telstra BigPond

Wrong. In the end I had to set up two separate IP networks and get the Billion BiPAC 7404VGP to forward packets by setting up an ‘IP Alias‘. Set as DHCP relay agent. Not as elegant as a single IP network … Continue reading

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LoLa Prototype v1.1 = SUCCESS

It Lives! A broomstick driven, photo interruptor sensor enabled pendulum that uses MIDI to make a sound for each half swing. As part of my research for the Institute of BackYard Studies , I am prototyping various components for a Lightly … 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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LoLa platform for sensor testing

To figure out which sensors / switches will reliably trigger sounds from sixteen swinging pendulums on our proposed ‘Lightly Oscillating Linguistic Organ’, I decided to build a test bench. While doing so it occurred to me that like Professor Tanya … Continue reading

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