Ralim

Hello, Im not 100% certain, but i think it would be wiser to use the netduino+ to decode the TCP/IP packets and then send on simpler commands to the arduino to read sensors and parse back data.. I would suggest using the Sockets in C# to communicate to the driver, using the API and the debugging in VS to let you look into the data being sent, you can then write a decoder class for the netduino, and then use serial or I2C or SPI for communication.. Serial is probably the slowest of the three, but the simplest to get working at first.. If you are using the serial in the neduino, just use eventhandlers on serial and the TCP/IP connections to ensure rapid response.

Hello, Yes I see the display blink on/off occasionally with the odd character light up.., and heater has a very dull glow to it. i tried your updated SPI configuration and also reverse the settings bytes i am using (shown below). i now get the screen flickering occasionally but nothing like what i expected from my code loop.. Any help with the command set would be amazing Im off to sleep over here (Just on midnight) so ill check back and report in the morning . EDIT: Did some more fiddling and havent been able to make sense of the datasheet's command set. :\ Also found another screen & controller & power supply that use the same chip, so i will test on each. Thankyou for putting your time into this.

Not certain if it is the maximum for the netduino, but it is as high as i would go expecting the connection to stay stable. 115200 tends to be the maximum for most devices, so i would say its safe to assume that it is the highest netduino..

Ah sorry, i have the complete board, its the VFD, controller (the datasheet is linked^), and power supply. The board used to have the DATA,GND,CLK,Strobe pins wired to the inbuild controller so i just removed those wires and connected them to my netduino... So yes my circuit has the 30V supply and the ~3V AC for the heater as well. All the normal power requirement are there for the board itself.

Just to mention, not sure on the application and such, but a cheap method would be to use IR… it is dodgy in direct sunlight and all but I might suit.. You can drive a IR led from the serial port off memory..