adafruit @adafruit.com

Coming soon - Soil sensor gets a square wave update

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adafruit @adafruit.com [ View ] Jun 13, 2024 at 22:51 UTC

After pondering the Multi-Year Soil Sensor Thread over at zerocharactersleft.blogspot.com/2011/11/pcb-... we decided to make another prototype of our revised I2C soil sensor, this time we'll use the square wave filtering technique rather than the RC-rise-time system.

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Russ Holmes @rholmes.bsky.social [ View ] Jun 13, 2024 at 23:02 UTC

I built one a while back but needs to be 50 MHz+ to avoid dissolved salts affecting the measurement.

metergroup.com/measurement-...

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