![]() I sadly don't have a oscilloscope to measure the voltage levels that get transmitted between pc and denon.Īny suggestion what could cause this?I already put many many hours into this without finding a possible solution. I tried wiring the signal ground to pin 1 instead of pin 5, cause the pin out description in the official docs linked above seems to have this switched. I also tried to send hex codes via serial.write for all the characters instead of denon doesn't respond to anything.I did a few hours of googling and did not find anything besides that: (Termite is set to 9600 baud, and transmitting a after text which should correspond to the \r in arduino code). When I connect the arduino to the denon, nothing happens.įun fact is when using termite, and connecting my computer via the usb rs232 adapter to the denon, everything works fine. 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: ![]() Il offre ainsi une connexion réseau stable et rapide, pour profiter des contenus numériques dans les meilleures conditions possibles. ( 1pin : GND, 2pin : TxD, 3pin : RxD, 5pin : Common(GND), 4,6,7,8,9pin : NC ) Denon AVR-X1700H DAB : fichiers audio Hi-Res Audio Lamplificateur home-cinéma Denon AVR-X1700H DAB est équipé de contrôleurs réseau Ethernet et WiFi bi-bande. 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) ![]()
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