TTL to RS485 TTL interconversion single-chip microcomputer serial port UART lightning protection 5V 3.3V photoelectric isolation

TTL to RS485 TTL interconversion single-chip microcomputer serial port UART lightning protection 5V 3.3V photoelectric isolation
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sku: 1005006181880859
$1.43+4%
$1.49
Shipping from: China
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