PPO HUD

[Packhorse]

If you are doing a 6 meter deco stop then as long as its flashing hard out green then its good aye!

The "smithers code" part of the program is actually very small so it should be easy to modify for a constant on if you wanted.
Changing the colours of the LED's is also quite easy to do too if needed for reasons like colour blindness etc.

 

[Packhorse]

MK2 version with a cylindrical housing and Piezo switch. No LCD at this stage.

Dived it today and pretty happy with it except may have to up the brightness while its in the "good PPO" zone.

 

[betti154]

Nice. Is that a piece of acrylic on the can to emit the hud lights at the rear?


Regards,
Damien Siviero
http://damiensiviero.com

 

[Packhorse]

No. Its just to blank off the cable gland that will be used for the OLED/LCD display.
But it could very easily be used to house a buddy light.

 

[DeepB]

I am sorry to bring up an old thread again, but is there any update on the HUD? Are you still diving it?

I am at the moment also considering a DIY HUD.

Thanks

 

[Packhorse]

Yes I am still diving it.

I added a small ( <1inch) OLED display in a 20mm acrylic tube with a piezo in the end. Then atemp stick array of 5 sensors in each or the two scrubbers.
The temp stick worked well but I didnt see any great benefit from it plus it was a bit of a hassle loading in the scrubbers with the cable and plug coming out of them so I have since removed the temp stick feature and it now is a simple PPO monitor with a single water temp sensor.

More info here...

http://www.rebreatherworld.com/electronics-rdg/39582-diy-hud.html?highlight=diy+hud
http://www.rebreatherworld.com/electronics-rdg/46018-diy-temp-stick.html