I Wrote: >> --------------------------------- >> As a sailor and a supplier of industrial level measurement >> instrumentation, my observation is you are chasing your tail. >> >> Unless you are willing to spend $500-$600 for an instrument, you've >> got a long uphill climb. --------------------------------
"Jim Lynch" wrote: > Wow! I've got about $30 invested in the hardware so far and all > that's > left is the software. I plan on adding a liquid level circuit for > failsafe operation. (another $10) What am I missing? The processor > runs at about 10 ua while asleep. You paint a very ominous picture. ---------------------------- The problem is reliable liquid level detection which you haven't addressed. Conductivity, Capacitance, ultrasonic, pulse radar and hydrostatic technologies that are either not reliable or economically affordable. Vibration MIGHT be a possibility, but depends on a continuous source of power as well as not tolerating the creeping crud often found in a bilge. Given the above, until the level detection problem is solved, little else matters. The most reliable solution to date is to run the pump on a repetitive cycle such as 10 minutes "On", every 24 hours as prevention. OTOH, if you have a leaky boat, it's time to repair it.. Don't want to rain on your parade, but first things first. Have fun. Lew _______________________________________________ Liveaboard mailing list [email protected] To adjust your membership settings over the web http://liveaboardonline.com/mailman/listinfo/liveaboard To subscribe send an email to [email protected] To unsubscribe send an email to [email protected] The archives are at http://www.liveaboardonline.com/pipermail/liveaboard/ To search the archives http://www.mail-archive.com/[email protected] The Mailman Users Guide can be found here http://www.gnu.org/software/mailman/mailman-member/index.html
