rs232 - What is the difference between RS-232 and RS-232-C . . . The formal standard that later became mainstream was EIA 232 C, where EIA is the standard institute and C is revision This one is sloppily referred to as RS-232-C, since RS-232 is such a well-known name
Could RS-232 data be carried over a standard 3. 5mm audio aux cable? I am looking at RS-232 control for various TV displays which use a different type of input connector for RS-232 The combination of RS-232 inputs on different TV displays is the standard 9-pin DB9 connector or either a 2 5mm or 3 5mm input
microcontroller - Must RS-232 devices use the same logic level . . . The RS-232 standard defines logic levels in the range +3V +15V and -3V -15V to be valid, meaning that any IC that supports RS-232 should recognize and tolerate those voltage ranges Does this mean that the transceiver that I use must output + -12V as well?
rs232 - What is the difference between RS-232 and TTL UART . . . The port on your USB<->RS-232 converter will output something like + -9V and can accept + -25V or short circuit without damage The UART on your MCU uses logic level (0V 3 3V or 0V 5V typically) Applying less than 0V or more than Vcc can destroy the MCU chip Also the logic levels are inverted between the two types (excepting an option on a very few MCUs) To bidirectionally invert and
serial - Electrical Engineering Stack Exchange In RS232 serial communication as pictured below how does one ensure the bit stream is always read at the start stop bits? I’m looking at this waveform and considering a case where two consecutive
communication - Electrical Engineering Stack Exchange RS-232 is a very simple serial protocol that was originally used for modems and teletypes It is what is commonly called a serial port (or a COM port in MS-Windows)
What are TX and RX relative to? - Electrical Engineering Stack Exchange RS232 pin naming is a bit of a special case because they defined things in terms of DTE (Data terminal equipment) and DCE (Data communications equipment) and managed to cause utter confusion DCE has the data output on the RX pin and input on the TX pin, DTE is the opposite In theory the sex of the connectors should tell you what is what, in practise enough manufacturers got this wrong to