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Chrome-bevel sheet on grid paper — specs and return notes filed under the bay.
Interface: I2C (up to 3
This single channel Relay Module operates at 5V TTL signal and is perfect for common Arduino/Raspberry Pi control applications
go with I2C
and effectively protect MCU
Length: 101
20mm Metal DC Gear Motors Specifications:12V / 50 RPM Interface: I2C (up to 3These cylindrical brushed DC gearmotors are available in a wide range of gear ratios and 12V with long life carbon brushes (CB). All geramotors have the same 20 mm diameter body and 4 mm diameter gearbox output shaft, so it is generally easy to swap one version for another if your design requirements change (though the length of the gearbox tends to increase with the gear ratio). Higher voltages could start negatively affecting the life of the motor,
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