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FAQ

I understand that TRH031M is in operation on 3.3V. Why 4.5V is supplied into the board?
쓰리에이로직스 Hit:154 125.7.232.215
2015-11-23 17:34:09
That is because LCD Module is working on 4.5. 
If you see the board, there is a regulator of 3.3V next to the DC-Jack.

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