senzori pt masurarea umiditatii solului soil moisture Arduino nodemcu RPi etc

1) primele poze: senzor de umiditate rezistiv 12ron
moisture sensor can be used to detect the moisture of the soil, when the soil is dry , the module outputs a high level , whereas the output low. Using this sensor make an automatic watering system , so that your garden plants need people to manage .2 adjustable sensitivity ( shown in blue digital potentiometer adjustment )4 Operating Voltage 3.3V-5V5 Module Dual Output mode , a simple digital output , analog output more accurate.6 with fixed bolt hole for easy installation7 small PCB board size : 3cm * 1.6cm8 power indicator ( red ) and the digital switch output indicator ( green )9 using LM393 comparator chip , stableVCC external 3.3V-5VGND GND ExternalDO small board digital output interfaces ( 0 and 1 )AO small board analog output interface

2) ultima poza: Noul senzor capacitiv 22ron
Capacitive soil moisture sensor is different from most of the resistive sensors on the market, using the principle of capacitive induction to detect soil moisture. The problem that the resistance sensor is easy to be corroded is avoided, which greatly prolongs its working life.
The sensor has a built-in voltage-stabilizing chip that supports a 3.3-wide voltage operating environment, which means it can work even on a 3.3-V Aduino master board. A miniature PC like raspberry pie only needs an ADC (analog to digital) conversion module to work.
With a screen and a motherboard, you can talk to your plant. To see if your beloved is thirsty, do you need more water to moisten it?
Working voltage: 3.3 VDC
Output voltage: 0 ~ 3 VDC

Interface: PH2.54-3P
Size: 98 x 23mm (LxW)

ID anunț: 19704508