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Jessinie Usb Serial Port Control Relay Module Sturdy Durable Lightweight Usb Relay Module Usb Intelligent Control Switch Overcur
4.8 (102 items)
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$7.85 cheaper than the new price!!
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New $13.09
Product details
| Management number | 241624945 | Release Date | 2026/07/18 | List Price | $5.24 | Model Number | 241624945 | ||
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Usage Method Step 1: Plug The Usb Relay Module Into The Computer And Install The Driver Of The Ch340 Usb To The Serial Port Chip Step 2: Open The Serial Port Debugging Software Such As Stc-Isp And Sscom32, And Select The Baud Rate Of 9600; Send A0 01 01 A2 In Hexadecimal (Hex) To Open The Relay; Send A0 01 00 A1 In Hexadecimal (Hex) To Close The Relay, And Can Be Sent Manually Or Automatically
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