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[FAQ]frank asked about RS232 to TTL Converter Module

I bought one of these but it didn't work reliably - the negative charge pump didn't work right most of the time. I replaced the MAX3232 IC, and also shorted pins 10 and 11 on it so that no logic-level inputs were left unconnected. It works fine now. YMMV
frankJan 27,2018 04:02 AMAdd Comment


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