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Spindle speed and direction control
USB Connectivity
its got a solid construction
Pin 4: A2 – Input A (Bit 2)
4066 (Quad Analog Bilateral Switch) SX127 Spindle speed and direction controlThe 4066 contains 4 analogue bilateral switches, each with an active high enable input (A) and two input outputs (X and Y). When the enable input is set high, the X and Y terminals are connected by a low impedance; this is the on condition. When the enable is low, there is a high impedance path between X and Y, and the switch is off. Analog switch integrated chips (ICs), when turned on, will conduct both analog and digital signals from the input pin
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