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Thanks John !

You don't need a pull down for that hall effect sensor, you need a pull up. The output is the collector of an NPN transistor, so open collector. There is a datasheet:

Nice looking job, well done. -- John

Hi John Yes received the photos Thanks -- John

Interesting.? I sent two photos and neither of them showed up on the forum.

Alex, would you share your code? [email protected]> wrote:

There’s no specification on those devices as to speed. I would not use them as spindle sensors. Sent: May 6, 2025 11:38 PM To: [email protected] Subject: Re: [digitalhobbyist] ELS on a SOuth

we were gettin a ton of bounce with the sensor I originally picked . but I totally missed the part where i needed to use a pull down resistor . so maybe it? get's better with the resistor .

Here's a photo of my South Bend Heavy 10L with a magnet in the bearing clamp hole and a hall sensor to pick up the magnet. Been working without issues for probably since about 2008. This is on a

hey folk's has anyone? done this ELS on a South Bend 9 lathe ? I'm lookin to see some pics of encoder mounting if anyone has any thanks animal

thats why I couldn't find it , now I remember it was never saved in the file section , just in Messages . thanks Julian animal

Mike, yes it's still up ... Auto-Oiler replacement for Myford and other drip oilers. (

A encoder sounds like a much more stable unit than a pair of led's readin? line? or 4 on a spinning shaft . Probably get much less bounce that way . thanks

I used an Omron rotary encoder to measure spindle location and speed on my lathe. The positioning is useful and enabled me to do an electronic leadscrew (a good project down the line). It's the thing

Thanks Julian . I need something that can could revolutions on the spindle on my lathe . I looked for that project in the files this weekend but all I found was like 3 pics . Is it still there & I'm

Haven't used them yet but I settled on QRE1113 (through hole) for track sensors for a N Scale layout. I only need to detect at about 3mm max. About 3.6 x 2.9 x 1.7 mm ... Peter

Hi Mike, Not sure what type of IR sensor your looking for, but I used one of these on my auto oiler system a few years back ... It was an H92B4 photo interrupter.? It worked very well both for

evening folks , Ion a quest for a small package IR sensor for a project I'm working on . ??? Anyone here have a suggestion for one that they have used & are happy with it ? I'm working with Arduino

oops, got an error in there - SDS1102 is the model you were looking at, but the answer remains the same, multiple brands, same comments apply... Here is a reddit that talks about them:

The "DOS1102" part is the "standard" model name and there are multiple makers of that model. Standard chinese practice is there is a "design" and is branded by a bunch of trading companies. All are