I have seen a few ideas for open source hardware
projects on here, but I didn't think most of them were worth it. The ones I have seen just weren't worth the effort as commercial
products were cheap
, reliable and refined enough (e.g. MPPT battery
However a recent thread may have revealed a great candidate for an open source project
Fluid Level Gauges
offerings on the market are either very antiquated or grossly overpriced (or both). Its either 50 year old resistive based technology (still expensive) or one of the new digital gauges using a variety of measuring methods (capacitive, pressure, sonar). Although the new gauges are excellent, they are grossly overpriced (about $100-$150/tank).
I not only believe, I know that some pretty serious savings could be achieved with an open source project
. I know this, as some years back I designed a similar capacitive based fluid gauge for the OEM RV market. The cost of the parts
for those gauges was $26 for 3 tanks
(in non bulk price). I'm pretty sure the price
could be even cheaper today as the chips required (capacitive touch, canbus, atmel or pic) have rapidly dropped in price
What does everyone think? Would there be any interest in such a project?