Here is a tested Arduino project that uses 3 sensor probes as water level indicator with 3 leds and one LCD display + a simple controller that turns on a motor when the water has reached the desired ...

The common wire C goes up to the end of the pipe through the conduit. The wire for probes L and H goes along with the conduit from the outside and enters the conduit through two small holes bored into ...

Calibrating the system using a bowl of clean water. There is no single parameter that determines the quality of a water sample, so the pollution monitor has no less than five different sensors.

Ignoring voltage drop from the transistor, wire and loss to water he’s pushing a max of 90 uA through the lowest sensor pair. It’s gonna take forever to corrode the bolts no matter what they ...

Both are working on D1 Minis using ESPHome and I can wire them up to the Rachio pretty easily using Node-Red in Home Assistant. That all works. Pool is still months away so I'm not sure exactly ...

The new e-Health sensor platform adds sensing capability for nine different biometric parameters, such as pulse, blood pressure, oxygen in blood (SPO2), electrocardiogram (EKG), airflow ...

Arduino, the open-source hardware pioneer with 32 million active developers worldwide, today announced its schedule of events for Sensors Converge, th ...