Analogue

Tony Strasser Leave a Comment

This demonstrates the conversion of an analogue to a digital signal; its display as a histogram; and the generation of a control signal when a threshold signal value is reached. Directions Step 1: Setup Plug a potentiometer into P4 and a LED into P2 using the 3-wire leads.         Step 2: Running the app Navigate to the …

Water Me

Tony Strasser Leave a Comment

This measures moisture in soil (or any other medium) using a resistive or capacitive soil moisture sensor.  When the moisture falls below an adjustable threshold level. a control signal is sent to a relay which connects power from a separate battery to a 3v mini-pump. When the moisture level rises to above the threshold level, the pump is switched off.   …