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does not contain a microcontroller chip
0 is the perfect expansion shield to build an engraving machine
1×Mini System Development Board ARM STM32 F030F4P6 CORTEX-M0 Core 32bit 48 MHz
Flash size(MB) 4
Bondtech Extruder Upgrade which offers a 3:1 gear ratio for extra push and finer resolution
Capacitive Soil Moisture Sensor (Corrosion Resistant) ESP 07 does not contain a microcontrollerThe Capacitive Soil Moisture Sensor (Corrosion Resistant) is a soil moisture sensor based on capacitance changes. Compared with resistive sensors, capacitive sensors do not require direct exposure of the metal electrodes, which can significantly reduce the erosion of the electrodes, it is considered Corrosion Resistant. It is important to note that this sensor can only qualitatively test the humidity of the soil and cannot measure quantitatively. When
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