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ETH/USB-HUB-HAT
Raspberry Pi Zero Ethernet / USB HUB HAT, 1x RJ45, 3x USB
KY-036
TOUCH metal sensor module KY-036 circuit board/electronic building block touched by human fingers
2-CH-RS485-TO-ETH-(B)
Industrial Isolated 2-Ch RS485 to RJ45 Ethernet Serial Server Dual channels RS485 independent
RS232-TO-RS485
Industrial RS232 To RS485 Converter For 600W Lightningproof and Anti-Surge