The motor of the soil will not move when it is connected to the power supply alone, and you need to add the code; you can refer to the following code. Note: Since BME280 already includes temperature and humidit
The sensor interfacing is very similar to the source document I told you about in the first step, but I tweaked the values a bit to get a better signal in each stage. The filtering is basically the same, the C4 = 4.7uF and R6 = 68K form a high-pass filter of ~0.5Hz while the ...
It avoids the problem that the resistance sensor is easy to corrode and greatly prolongs its working life. About the motor The motor of the soil will not move when it is connected to the power supply alone, and you need to add the code; you can refer to the following code. ...