so bought sensor off amazon use water pressure sensing device.
what happening here? resistance across red , black of sensor 8 ohms.
quote
working voltage: 5vdcmy expectation device supply 5v arduino, , read signal (yellow) wire's voltage , map voltage actual pressure reading. however, when apply sensor board kills it. tried using external 5v power supply grounded arduino's ground. when tested voltage across power supply voltage drops around 0.2v.
output voltage: 0.5-4.5 vdc
working current: <=10 ma
working pressure range: 0-1.2 mpa
the biggest pressure: 2.4 mpa
destroy pressure: 3.0 mpa
working temp. range: 0-85 celsius degree
storage temperature range: 0-100 celsius degree
measuring error: +_ 1.5 %fso
temperature range error: +_3.5 %fso
response time: <=2.0 ms
cycle life: 500,000 pcs
what happening here? resistance across red , black of sensor 8 ohms.
p.s there other sensors use? how 1 go making own pressure sensor digikey chip environment corrosive liquids?
Arduino Forum > Using Arduino > Sensors > Water pressure sensor killing power to board
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