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SparkFun 16 Output I/O Expander Breakout - SX1509 can also act as a level shifter to connect a microcontroller running at one voltage level to a component running at a different voltage level
Operating voltage : 5
The less water in the soil means poor conductivity and will result in a higher resistance
A5: Analog output
Adjustable sensitivity
LD1117v33 (3.3V - 3 pin Voltage Regulator) WiFi Module SparkFun 16 Output I/O ExpanderIntroduction : LD1117v33 (3. 3V 3 pin Voltage Regulator) is a low drop Voltage Regulator able to provide up to 800mA of Output Current. Features : Output Voltage: 3. 3V. Output Current: 800mA. Dropout Voltage: 1V. Input Voltage (Max) : 15V.
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