Comments on: Arduino Table Saw DRO http://www.penney.org/arduino-table-saw-dro.html a little knowledge is a dangerous thing Fri, 09 Sep 2011 15:29:05 +0000 hourly 1 http://wordpress.org/?v=3.2.1 By: Dan Lyke http://www.penney.org/arduino-table-saw-dro.html/comment-page-1#comment-16136 Dan Lyke Wed, 20 Feb 2008 18:46:18 +0000 http://www.penney.org/arduino-table-saw-dro.html#comment-16136 Aha! Missed that one when I was going back through your RSS feed... The microcontrollers I've been playing with recently, the Atmel AVR line, have a bunch of 10 bit A/D converters on 'em for free, so I've been wanting to get my hands on a couple of sine encoders (rather than straight digital quad encoders) and see how accurately I can use a cheap encoder like that. But I'm also a Vernier caliper kind of guy, haven't yet worked my way up to these newfangled digital thingies, so I haven't been motivated to play with a lot of these things outside of work. Aha! Missed that one when I was going back through your RSS feed…

The microcontrollers I’ve been playing with recently, the Atmel AVR line, have a bunch of 10 bit A/D converters on ‘em for free, so I’ve been wanting to get my hands on a couple of sine encoders (rather than straight digital quad encoders) and see how accurately I can use a cheap encoder like that.

But I’m also a Vernier caliper kind of guy, haven’t yet worked my way up to these newfangled digital thingies, so I haven’t been motivated to play with a lot of these things outside of work.

]]> By: Damian http://www.penney.org/arduino-table-saw-dro.html/comment-page-1#comment-16134 Damian Wed, 20 Feb 2008 18:06:25 +0000 http://www.penney.org/arduino-table-saw-dro.html#comment-16134 See this <a href="http://www.penney.org/arduino-dro.html" rel="nofollow">post</a> :) See this post :)

]]> By: Dan Lyke http://www.penney.org/arduino-table-saw-dro.html/comment-page-1#comment-16128 Dan Lyke Wed, 20 Feb 2008 16:53:36 +0000 http://www.penney.org/arduino-table-saw-dro.html#comment-16128 Be careful on repeatability. I've tried to use optical mouse electronics as part of a rotary encoder before, and it seemed amazingly sensitive, but was awful for "turn right n steps, now turn left n steps", and I gave it up for a basic quad encoder. Be careful on repeatability. I’ve tried to use optical mouse electronics as part of a rotary encoder before, and it seemed amazingly sensitive, but was awful for “turn right n steps, now turn left n steps”, and I gave it up for a basic quad encoder.

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