When a go-kart racer knows the density of dry air entering the engine, he can tune his carburetor's efficiency accordingly and maximize performance. The problem is weather is always changing. To avoid any guesswork, John Cashon built an on-board weather station for go-karts. It monitors three atmospheric parameters (barometric pressure, relative humidity, and temperature), does the required math, and displays the dry air density on a PDA for quick, on-the-fly carburetor adjustments.
Go-kart weather station parts list
Allied Part #
HIH-36010-002 humidity sensor
MPX4115A barometric pressure sensor
Trimming potentiometer 100 kOhm
Voltage regulator +5V
9V battery strap
Additional parts required: PalmOS PDA, OrbForms Designer (OrbWorks Inc.) DAQ-100 data acquisition card (Integrity Instruments), PDA serial cable prototype board, enclosure, 9V battery, various capacitors and resistors.
Kickstarter offers a gazillion ideas for businesses that are seeking start-up funding. The crowdfunding site also features new gadgets from companies struggling to get their product out to customers. We took a look at the gadgets currently featured and found a number of cool ideas that are seeking funding angels.
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