Hi
I'm working on at serial gateway, and i'm not 100% sure how get my device connected right to my Arduino.
And now i really need some help from a super electrical guy.
The normal way connecting to the heat meter is that i have a serial cable from the manufacturer
and the communication from the PC to the meter is RS232. se schematic
But i don't wont to use this cable also i don't wont to build a RS232 to TTL
converter, be curs my arduino only have TTL available 5v, so i talk with the manufacturer and he told me that it shut work with this schematic
http://pdfcast.org/pdf/1716003-sharp-pc357
But it don't work and i only have a small knowledge about Electronics so i hope someone can help me, i think that there is a problem with getting the opto coupler to work.
Device "heat meter" i need to send data from Arduino to heat energy meter and receive data."
1200/8/2/N
Hope someone can help
I'm working on at serial gateway, and i'm not 100% sure how get my device connected right to my Arduino.
And now i really need some help from a super electrical guy.
The normal way connecting to the heat meter is that i have a serial cable from the manufacturer
and the communication from the PC to the meter is RS232. se schematic
But i don't wont to use this cable also i don't wont to build a RS232 to TTL
converter, be curs my arduino only have TTL available 5v, so i talk with the manufacturer and he told me that it shut work with this schematic
http://pdfcast.org/pdf/1716003-sharp-pc357
But it don't work and i only have a small knowledge about Electronics so i hope someone can help me, i think that there is a problem with getting the opto coupler to work.
Device "heat meter" i need to send data from Arduino to heat energy meter and receive data."
1200/8/2/N
Hope someone can help