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Genmitsu Desktop CNC Machine Buyer's Guide
Using the milling and laser cutting capabilities on the PROVerXL 1010 extension kit
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This is USB controlled relay opto-isolated board with 16 SPDT relays. You can use it for simple ON/OFF switching electrical devices - home lights, DC motors, solenoids and others. It can help you building projects like robotics and home automation.
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1x 16-Channel USB Relay Module