MPR121 OR FDC1004 sensor - The better option for measuring liquid level

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hi,

i playing around capacitive liquid level sensors , trying understand difference between mpr121 , fdc1004. obviously, fdc1004 lot more pricey mpr121.

with proper shielding confused level of improvement fdc1004 has on mpr121.

my experiment mpr121 have 7 copper tapes around plastic jar @ different levels connected 7 inputs of mpr121. able give me readings , results consistent. havent played around fdc 1004 breakout board 20.99, bit beginner hobbyist myself. however, if worth buy, give shot. wanted understand community thinks.

anyone info. thanks

hello there,
maybe bit late nevertheless...
the fdc1004 can return value of measured capacitance can measure liquid level more or less linearly on height of container.
the mpr121 can trigger on/off 8 capacitive sensor inputs supplied on breakout boards.

so depending of how accurate liquid level measurement needs can go fdc1004 (not available on ebay yet , quite expensive) or mpr121 (ebay - £1.20 ~ $1.50)

regards

v


Arduino Forum > Using Arduino > Sensors > MPR121 OR FDC1004 sensor - The better option for measuring liquid level


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