4 pin opto's

Re: 4 pin opto's

Traumflug — Wed, 19 Oct 2011 06:10:55 -0400

Quote

Hmm but I'm trying to hook them to a Sanguino that only has 3 pins which is why we wired the two + pins together

You need an endstop PCB, then. At least two designs are available.

Re: 4 pin opto's

NelsonRap — Tue, 18 Oct 2011 14:47:16 -0400

Hmm but I'm trying to hook them to a Sanguino that only has 3 pins which is why we wired the two + pins together

Re: 4 pin opto's

Traumflug — Tue, 18 Oct 2011 08:42:53 -0400

You can measure the signal going into the ATmega with a multimeter. Low is < 1V, High is > 3V.

You want at least a current limiting resistor on the LED side, for an application with LED, see [reprap.org]

These optical interrupters can be attached to a Gen6 directly, because Gen6, unlike all other electronics, has the required resistors on the main board.

Re: 4 pin opto's

NelsonRap — Tue, 18 Oct 2011 01:26:32 -0400

Hmm not sure whats going on though they don't seem to be working with Sprinter and sanguino at the moment

Re: 4 pin opto's

NelsonRap — Tue, 11 Oct 2011 17:55:44 -0400

It is these opto's Here and the positive pins are the ones wired together, there is a symbol on the end of the opto

Re: 4 pin opto's

marnargulus — Tue, 11 Oct 2011 08:57:35 -0400

Which wires and what model of opto did you get?

Re: 4 pin opto's

NelsonRap — Mon, 10 Oct 2011 14:46:33 -0400

There are 2 positive pins that need to be wired together

Re: 4 pin opto's

marnargulus — Mon, 10 Oct 2011 13:44:48 -0400

Please explain in case someone else has this issue.

Re: 4 pin opto's

NelsonRap — Fri, 07 Oct 2011 20:31:10 -0400

Sorted

4 pin opto's

NelsonRap — Fri, 07 Oct 2011 16:41:54 -0400

Started wiring up our Prusa and found on the sanguinololu board the opto headers only have 3 pins but the optos have 4 wires? Anyone run into this before?