Looking for help choosing hardware. I have an existing installation with a mega and wiz ethernet shield and serial 4x20 lcd, controlling a house power solar installation which works excellently. Ive lost the sketch files and decided to do a whole new installation of the project, and i am aiming for a mega with the same ethernet but this time i want a 7 inch LCD touchscreen.
Id also like a PIR that will sense when i walk into the room, turning on the screen. (Backlight only if turning on or off the screen while the mega is still running isnt possible)
That way it can time out after i walk out the room and shut down the screen and save power. (Will be running off 12v battery bank via power supply)
Can i have a 7inch display AND a wiznet ethernet without conflicting pins?
Can i have a 7inch display AND a wiznet ethernet without conflicting pins?
For sure, if the 7inch is controlled through I2C or SPI.
Stimps:
Looking for help choosing hardware. I have an existing installation with a mega and wiz ethernet shield and serial 4x20 lcd, controlling a house power solar installation which works excellently. Ive lost the sketch files and decided to do a whole new installation of the project, and i am aiming for a mega with the same ethernet but this time i want a 7 inch LCD touchscreen.
Id also like a PIR that will sense when i walk into the room, turning on the screen. (Backlight only if turning on or off the screen while the mega is still running isnt possible)
That way it can time out after i walk out the room and shut down the screen and save power. (Will be running off 12v battery bank via power supply)
Can i have a 7inch display AND a wiznet ethernet without conflicting pins?
Since you have chosen the Mega2560, and it has 4 Serial ports you might want to look at this UI module. The UI is designed to support microcontrollers. You build the 'Screens' in a PC application, download the definition files to the module and control it over a serial interface.
Touch Screen UI using Serial Interface.
Chuck.