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They are volt-free relay outputs
1 × Vibration Switch - HDX2
low power semi-duplex transceiver and RF
Alloy 63/37 tin-lead Diameter 0
DFRobot USB-to-TTL Converter CP210 - TEL0010 12v 2a They are volt-free relay outputsThis USB to TTL converter combine the USB 232 1 (USB to Single RS232 Adapter) and TTL 232 1 (Port powered RS232 TTL converter) allows you to convert USB to TTL CMOS compatible levels and vice versa. It can be used to set up APC220 RF wireless module. It can be used as STC microcontroller program downloader. SPECIFICATION Voltage: 5V Chip: Silicon Laboratories CP210x DOCUMENTS Drivers SHIPPING LIST USB to TTL Converter (CP210) x1
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