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The soil fertility is detected using NPK sensors
Resistance (Ω) : 200Ω/2kΩ/20kΩ/200kΩ/20MΩ/200MΩ
The maximum AC or DC that can be detected can reach 5A
The CSB pin is a chip select pin
Torque : 100 g/cm
Arduino Prototype Screw Shield CR2025 3V Lithium battery (Maxell) The soil fertility is detectedIntroduction : The ScrewShield extends all pins of the Arduino out to 3. 5mm pitch screw terminals. It extends the Arduino pins to sturdy, secure, and dependable screw terminal blocks. It also has a lot of the utility provided by Arduino Protoshield, including: a large prototyping space of both connected and unconnected 0. 1" spaced through holes, a reset button, LED for D13 pin indicating.
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