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or where several circuits must be controlled by one signal
4GHz 3dbi (Female)
It is based on SIM900A 4 Frequency GPRS module
Timekeeping operation continues while the part operates from the backup supply
Quick mode :60ms
Nano CNC Shield V4 9110 or where several circuits mustIntroduction : 3D printer stepper motor driver CNC shield V4 needs to work with Nano board. It can be used as driver expansion board for engraving machines and 3D printers. It has in total 3 channel slots for A4988 stepper motor driver modules (not included) for driving 3 channel of stepper motors. Each channel of stepper motor only needs 2 IO ports, which means 6 IO ports is sufficient to manage 3 stepper motors. This shield can make quick work for