How to Make Soil Moisture Sensor with one Transistor 

Very simple circuit how to make soil moisture sensor with using only one transistor and 4 leds, Components you can order from LCSC link above in description.Thanks

Cool easy project another great video good job😀👍👍

What is the reason for using 4 LEDs? Just one would work too?

can you explain why you need the 120k resistor?

If you put some salt there (NaCl for example)it becomes more conductive,so you can also test salt in soil

Nicely done!

nice bro you are brilliant

thank you

Cool bro! !!

and you are genius

Why

Kollaam poli sanaam

Hi