Trudesign indicator

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   Hello everyone
I exchanged the sea cocks on my Hanse 350 and replaced them with Trudesign. Trudesign has a variant that displays the status of the valves. Unfortunately, the price called there is absolutely out of any question. So I thought about how to do this with little effort (financially and practically).

Trudesign seems to use a reed contact. After removing the control lever, I only had to remove the blue cover, which is only fixed in two places with a little glue.

I then designed a replacement cover that accommodates two reed contacts so that both end positions can be queried safely. As reeds, I used the usual 14x3x3mm plastic housings that are available everywhere and a 5x1mm magnet. There is enough space under the cover to place these two contacts. For the magnet I then also designed a holder that is clipped into the adjusting lever.

So I can recognize the state OPEN and CLOSED exactly, if either the line is interrupted or the lever is undefined between the two end positions, I can evaluate this as "undefined".

Fortunately, Trudesign only uses two housing variants for the different diameters.

I evaluated the reed contacts using an ESP32, but it can also be wired directly with LEDs

Here from the "inside" - looked into the replacement cover. The reeds are each slightly offset from the axis of rotation so that the open / closed position is reliably recorded

So far I've used it to control a number of LEDs and a webpage in the simplest form on which the status of the valves is provided in text form, i.e. it can be called up via cell phone / tablet.

In addition, I have the option of outputting a "pseudo - NMEA 0183" as output via the serial monitor, ultimately nothing more than a text line that changes according to the status.

But I'll want to expand on that because I want to set up an electronic logbook in which all data that can be made available should be collected and evaluated

I didn't get any further because the boat is in GR and I had to go back to the cold and wet latitudes.

regards

Uli

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Ulrich Members Profile Send Private Message Find Members Posts Add to Buddy List Lieutenant Joined: 22 December 2015 Location: Germany Status: Offline Points: 29	Post Options Post Reply Quote Ulrich Report Post Thanks(0) Quote Reply Topic: Trudesign indicator Posted: 14 March 2023 at 15:10
	Hello everyone I exchanged the sea cocks on my Hanse 350 and replaced them with Trudesign. Trudesign has a variant that displays the status of the valves. Unfortunately, the price called there is absolutely out of any question. So I thought about how to do this with little effort (financially and practically). Trudesign seems to use a reed contact. After removing the control lever, I only had to remove the blue cover, which is only fixed in two places with a little glue. I then designed a replacement cover that accommodates two reed contacts so that both end positions can be queried safely. As reeds, I used the usual 14x3x3mm plastic housings that are available everywhere and a 5x1mm magnet. There is enough space under the cover to place these two contacts. For the magnet I then also designed a holder that is clipped into the adjusting lever. So I can recognize the state OPEN and CLOSED exactly, if either the line is interrupted or the lever is undefined between the two end positions, I can evaluate this as "undefined". Fortunately, Trudesign only uses two housing variants for the different diameters. I evaluated the reed contacts using an ESP32, but it can also be wired directly with LEDs Here from the "inside" - looked into the replacement cover. The reeds are each slightly offset from the axis of rotation so that the open / closed position is reliably recorded So far I've used it to control a number of LEDs and a webpage in the simplest form on which the status of the valves is provided in text form, i.e. it can be called up via cell phone / tablet. In addition, I have the option of outputting a "pseudo - NMEA 0183" as output via the serial monitor, ultimately nothing more than a text line that changes according to the status. But I'll want to expand on that because I want to set up an electronic logbook in which all data that can be made available should be collected and evaluated I didn't get any further because the boat is in GR and I had to go back to the cold and wet latitudes. regards Uli
	DIONYSOS / H350 (2008) 2 cab.

350Bob Members Profile Send Private Message Find Members Posts Add to Buddy List Captain Joined: 24 August 2015 Location: Greece Status: Offline Points: 176	Post Options Post Reply Quote 350Bob Report Post Thanks(0) Quote Reply Posted: 14 March 2023 at 16:21
	Hi Uli, That looks a great project, and extremely well done. I look forward to seeing it all in place if we get through the canal again this year. Best wishes Bob
	H350 #205

Ulrich Members Profile Send Private Message Find Members Posts Add to Buddy List Lieutenant Joined: 22 December 2015 Location: Germany Status: Offline Points: 29	Post Options Post Reply Quote Ulrich Report Post Thanks(0) Quote Reply Posted: 14 March 2023 at 18:08
	Hi Bob, yes hope to see you, we are at Kilada BS Shipyard on land till September Uli
	DIONYSOS / H350 (2008) 2 cab.



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