Board/NWI/NWI1248-DAT.md
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### Interface
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-- 8 inputs and 4 outputs totally
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-- [[RS485-DAT]]: use breakout board xxx, switch direction as input or output
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-- [[RS232-DAT]]: use breakout board [[DPR1084-DAT]]
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+[[RS485-DAT]]
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+- use breakout board xxx, switch direction as input or output
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+- reversal direction as breakout boards, solder onto the main board
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+- 8 channels IOs directly from ESP32 to isolator
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+
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+[[RS232-DAT]]
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+- use breakout board [[DPR1084-DAT]]
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### power supply
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-- upgrade to [[MP1584-DAT]]
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+- upgrade to [[MP1584-DAT]], ~28V 3A
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- up to 18V 2A, similar to [[NWI1245-DAT]]