USB to relay 4 way 5V /12V computer USB control switch drive-free relay module PC intelligent controller
Module description:
Onboard square USB interface stable connection
Relay driver chip ULN2803 the relay work is more stable
Board power sockets and terminals two power access methods are convenient and flexible. After connecting the power even if the computer is turned off or the USB is unplugged from the computer the relay can still maintain the setting state.
PCB size: 71.6mm*65.3mm
Fixed hole size: 3mm fixed hole center moment: 67.4mm*61.3mm
Note: Due to the characteristics of the USB protocol this module is not suitable for use in places with high electromagnetic interference! If you want to use it please take electromagnetic shielding measures and buy a high-quality USB data cable with electromagnetic shielding.
Product parameters:
- Input voltage: DC 5 V
- Input current: more than 300mA
- Connection method: NC/COM/NO
Relay parameters:
Can control AC 250V 10A AC load and DC30V 10A DC load
วิธีการใช้งาน
https://github.com/darrylb123/usbrelay
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