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Sensitivity adjustable
DC Geared Motor for Robots (Straight Shaft) with a gearbox to increase the torque in a small package and hooks directly into the wheel with no need for couplers which makes it ideal for DIY as it reduce assembly complications
74HC138 can be used as an eight output demultiplexer by using one of the activeLOW enable inputs as the data input and the remaining enable inputs as strobes
Average current consumption: 30 mA (typical)
MAX31865 PT100/PT1000 RTD Temperature Thermocouple Sensor Stepper Driver Shield Sensitivity adjustableIntroduction : For precision temperature sensing, nothing beats a Platinum RTD. Resistance temperature detectors (RTDs) are temperature sensors that contain a resistor that changes resistance value as its temperature changes, basically a kind of thermistor. In this sensor, the resistor is actually a small strip of Platinum with a resistance of 100 ohms at 0C, thus the name PT100. You could connect to it with any microcontroller over SPI and read out