Hi Saravanan How do you calibate it?

hello sir did you compare the received values with the actual tested soil values from soil laboratory

Could anyone shed light how the sensor actually works ? I understand the communication but what soil parameter it is measuring , when we try to measure N , or P or K for that matter ?

Could I connect three of this sensors to one usb-rs485 receiver?

sir, i am not able to find this ma487 rs485 to ttl module anywhere, i request to provide some links

Could I power three of this sensors with only one power supply? What voltage and Ampa will it need?

hello sir did you compare the received values with the actual tested soil values from laboratory

It's cool 🎉

how to verify whether i am getting Correct NPK values or not

Hello Sraravanan. I've got zero for the third field of the receiveddataquery (refers to the number of valid bytes) and no changes in the captured data when i switch the sensor enviroment (normal to water to soil), what could cause these problems.

Brother i am from Bangladesh. I watch your video. Previously you uploaded a gsm based motor controller board single phase . I want that type board for my irrigation pump motor. Tell me name of board and how i can get this? Please

Could you please share the link to buy online MAX 13487 RS485 TTL ?

Hello sir nice video , Do you have pdf ,how to make or design this sensor ?

what is the power consumption of this sensor

i already used your code but the output is different when i using your example the output always wrong i using weihan jxct 7 soil in one can you help me?

how to calibrate it?

Sir please create detail video on leafwetness sensor

What is unit of measurement

sir can u giv me connection dia gram

It's a fake sensor

Do Something About The Back Ground Noise. Could Not Finish The Video Had To Bail Out. You Got Yourself A Thumbs Down.