When connecting the arduino max3232 output to an usb rs232 converter, open termite, I see the transmitted text completely fine. On the hardware side I’ve connected a max3232 ttl converter chip.
Synchronous system: Tone step synchronizationĬommunication procedure : Non procedural Communication data length : 135 bytes (maximum)īasically this would be all that I need for it to work on the software side: Here is the protocol data extracted from the offical pdf: Connector type : DB-9pin female type, slave straight connection (DCE type) I’m trying to control an old denon AVR 3805 via RS232 via arduino (later via an esp8266 via webserver)
