@peekay123 So how much ram does the 128x128 pixel display require on the Spark Core? How much memory is left for your program is what I’m curious about.
So with the added FRAM to a Spark Core there should be no problem running the larger 400 x 240 pixel Sharp Display also?
On the VCOM Refreshing. If I don’t include a refresh() function in my main loop then its not going to refresh the screen so it looks fluid right? I did not copy the refresh() function into my main loop so that is probably the cause for the quick flash during screen refreshes. I’ll test that out soon. I wasn’t sure if it was in the actual library working in the background or if the refreshing of the screen was called in the main loop.
I though I saw the refresh code in the library files (.CPP or .H) and just assumed it was refreshing like it should automatically in the background but it must not if the demo displays fine and my code doesn’t and the only difference is I’m not calling the refresh() function in my main loop.
Now say you wanted to put the Spark Core or the Teensy 3.1 into deep sleep mode yet wanted to keep the Sharp LCD displaying data 24/7. Since the Sharp Displays require the VCOM to be toggled every half second does that mean you can only deep sleep between those half second intervals?
I was thinking that maybe using a CMOS 555 timer to toggle the VCOM vs making the Micro Controller come out of deep sleep all the time which consumes much more power than a CMOS 555 timer. How would you try to keep the sharp display on 24/7 with screen data updates every 1-24 hours while the microcontroller stays in a deep sleep mode except when you want to do a screen data update and then back to sleep?
I see the Spark Core being used this way. Have Sharp Display on all day long and then just have the Spark Core wake out of a deep sleep to get online and pull new weather data or whatever and update the LCD screen and then go back to sleep. This could be done with very little power consumption yet the display could say on 24/7 constantly displaying data.
Does that make any sense?
Oh yea, and which LCD screen do you like best? The silver or black 128x128?