hoe4

Thank you for comment. There is a typo. The water pump is 1.5W. Let me edit the post.

i hope this will help you

I do not have wechat 😅. I will create an account later.

In addition to Arduino, all component purchased from China. Suppliers show as below for reference.Arduino https://www.arduino.cc/5V USB submersible water pump https://item.taobao.com/item.htm?spm=a1z09.2.0.0.3...Soil moisture sensor https://item.taobao.com/item.htm?spm=a1z09.2.0.0.3...electronic component (resistor, diode, LED, power connector, 7805 IC, buzzer, capacitor, rainbow cable, ultrasonic sensor)https://dzyj.world.taobao.com/shop/view_shop.htm?s...Transistor TIP120, USB connector (Type A)https://yishengdz888.world.taobao.com/shop/view_sh...USB connector (Type B)https://detail.tmall.com/item.htm?id=618057011157&...i hope above links will help

Thank you. i might take ages to build a similar system 😓. I agreed that ESP8266/ESP32 is very powerful board to build different projects.

You welcome. You could give it a try 💪🏼

Thank you for your advice🙏. Honestly, this senor is not working properly sometimes

Thank you for your comment. i would try to make one

Thank you for your inquiry. i purchased it from China. Please check the following link for reference.https://item.taobao.com/item.htm?spm=a1z09.2.0.0.f...

Thank you for your comment. Actually, i tested the sensor and record on a table but i did not upload to this community due to busy on work. You can notice that there are few little holes on the moisture sensor. i designated from 1 to 7 and read it from bottom to top | | | --------------------------- 7 | o | | o | 6 | o | | o | 5 | o | | o | 4 | o | | o | 3 | o | | o | 2 | o | | o | 1 | o | | o |A0 = Arduino pin A0 which set as INPUTWhen moisture sensor in air analog reading from A0 is around 1023moisture reach 1 at above diagram A0 reading around 774 - 785moisture reach 2 a…

Thank you for your comment. Actually, i tested the sensor and record on a table but i did not upload to this community due to busy on work. You can notice that there are few little holes on the moisture sensor. i designated from 1 to 7 and read it from bottom to top | | | --------------------------- 7 | o | | o | 6 | o | | o | 5 | o | | o | 4 | o | | o | 3 | o | | o | 2 | o | | o | 1 | o | | o |A0 = Arduino pin A0 which set as INPUTWhen moisture sensor in air analog reading from A0 is around 1023moisture reach 1 at above diagram A0 reading around 774 - 785moisture reach 2 at above diagramA0 reading around 752-767moisture reach 3 at above diagramA0 reading around 658-661moisture reach 4 at above diagramA0 reading around 630-640moisture reach 5 at above diagramA0 reading around 586-592moisture reach 6 at above diagramA0 reading around 510-537moisture reach 7 at above diagramA0 reading around 480-494According to about data, you can set the predefined valve base on your preference to control the water pump on and off. I hope my explanation can answer your question. 👍