Panel mount connector reccomendation

Can anybody suggest a suitable small size panel mount receptable

(a) with at list 4 pins/poles
(b) small size suitable to fit on the front side of a din rail mounted box
(C) will only carry 5v supply and TTL signals

The above is needed to provide connection for the serial programming signals of the arduino.
These are ground, 5v, Tx, Rx and reset and will then be connected to an external Ftdi module.

I thought of using a 9 pin rs232 connector but that might bring confusion as rs232 signals are not ttl compatible, let alone that it is too big.

Thanks

Any of these look good?
https://www.digikey.com/products/en/connectors-interconnects/terminal-blocks-panel-mount/425?k=panel+mount+connector&k=&pkeyword=panel+mount+connector&pv2181=i4&FV=ffe001a9&mnonly=0&ColumnSort=0&page=1&stock=1&quantity=0&ptm=0&fid=0&pageSize=25

CrossRoads:
Any of these look good?
https://www.digikey.com/products/en/connectors-interconnects/terminal-blocks-panel-mount/425?k=panel+mount+connector&k=&pkeyword=panel+mount+connector&pv2181=i4&FV=ffe001a9&mnonly=0&ColumnSort=0&page=1&stock=1&quantity=0&ptm=0&fid=0&pageSize=25

Well, they do!

But I d prefer something smaller that would be easy to insert in one go eg like a 3.5mm audio jack..

3.5mm might get confused with audio port and anyone trying that is going to hear awful squeal from RX/TX

I also thought of S-Video port. It used 4 pins, low power, and is rarely used these day.

wilykat:
3.5mm might get confused with audio port and anyone trying that is going to hear awful squeal from RX/TX

I also thought of S-Video port. It used 4 pins, low power, and is rarely used these day.

True, but this is unlikely since the device has nothing to do with audio.

I am also considering a din type of connector

https://www.ebay.co.uk/itm/Female-5-Pin-DIN-Plug-Panel-Mounted-Keyboard-Cable-Connector-Adapter-Y0F4-Q4Q1/282540023226?_trkparms=aid
%3D111001%26algo%3DREC.SEED%26ao%3D1%26asc%3D20160908105057%26meid%3Dd57742d8ce1f405b8c1aca3de96cd646%26pid%3D100675%26rk%3D1%26rkt%
3D15%26sd%3D282540023226&_trksid=p2481888.c100675.m4236&_trkparms=pageci%253A11fb4631-cd2a-11e7-9585-74dbd1809629%257Cparentrq%253Ad460a03315f0aadccbf68424fffaaffc%257Ciid%253A1

I don't recall you saying which Arduino you are using. If you're Arduino has a USB connector on it, why don't you use it. They make a USB panel mount connector for this type application. No way you can get it confused. And you don't have to keep up with a special cable to use it.

Circular connectors - filter for how many pins you'd like
https://www.digikey.com/products/en/connectors-interconnects/circular-connectors/436?k=panel%20mount

These are all 4-pin
https://www.digikey.com/products/en/connectors-interconnects/circular-connectors/436?k=panel+mount&k=&pkeyword=panel+mount&pv1989=0&pv88=6&FV=ffe001b4&mnonly=0&ColumnSort=0&page=1&stock=1&quantity=0&ptm=0&fid=0&pageSize=25

RJ11s maybe.

If you can DIY look at using a Dupont connector.
https://forum.arduino.cc/index.php?topic=445951.msg3128976#msg3128976

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promacjoe2:
I don't recall you saying which Arduino you are using. If you're Arduino has a USB connector on it, why don't you use it. They make a USB panel mount connector for this type application. No way you can get it confused. And you don't have to keep up with a special cable to use it.

Its a home brew atmega1284p based system. There is no usb port. I use an external ftdi usb ro serial board to program it

larryd:
RJ11s maybe.

If you can DIY look at using a Dupont connector.
Share tips you have come across - #133 by LarryD - General Electronics - Arduino Forum

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Dupont would be a good idea...and i have been following your diy tips thread too!
But i dont have a cnc machine and cutting a good looking rectangle hole for the dupont connector without one is very difficult!

If you can make a rectangular hole, Home Depot sells these:
2017-11-19_12-39-39.jpg

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Watcher:
Dupont would be a good idea...and i have been following your diy tips thread too!
But i dont have a cnc machine and cutting a good looking rectangle hole for the dupont connector without one is very difficult!

You can make good looking holes using this method, just adjust the hardboard pieces and use the correct drill bit.
https://forum.arduino.cc/index.php?topic=445951.msg3142275#msg3142275

Before doing so, make sure you can securely glue the connector with solvent, I use Methylene Chloride.

.

Before doing so, make sure you can securely glue the connector with solvent, I use Methylene Chloride.

Well, apparently Methylene Chloride is particularly toxic and possibly carcinogenic so I couldnt get easily it where i live. I use super glue instead...

Which also gives off toxic fumes of course(*), but doesn't dissolve and ruin many plastics like strong
chlorinated solvents tend to...

(*) Superglue gives off a small amount of cyanide, more likely to irritate than anything, but a well
ventillated area is your friend(!)

"Methylene Chloride is particularly toxic and possibly carcinogenic"
In California :wink:

I use 2 drops per connector.
BTW, Methylene Chloride is used to decaffeinate coffee.

You may be able to use Acetone or epoxy on Dupont connectors, but I haven’t tried yet.
Maybe take the gloss off first with sand paper.

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These days less dangerous solvents are also used. Even liquid CO2 will do it I believe, and ethyl-ethanoate is
used (present in fruit, smells lovely). Being a very volatile solvent dichloro-methane is easily removed by
steaming, and I suspect the last vestiges are driven off actually making the coffee. Exposure to high concentrations of any non-polar solvent can cause coma and death.

MarkT:
These days less dangerous solvents are also used. Even liquid CO2 will do it I believe, and ethyl-ethanoate is
used (present in fruit, smells lovely). Being a very volatile solvent dichloro-methane is easily removed by
steaming, and I suspect the last vestiges are driven off actually making the coffee. Exposure to high concentrations of any non-polar solvent can cause coma and death.

How is caffeine removed to produce decaffeinated coffee? | Scientific American

Gasp! And all this just for glueing a dupont connector!

You truly get an education on these forums.

MarkT keeps us on the straight and narrow.

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So true!