Hello,
New to this forum. Been using Optrex 128x64 monochrome displays for years, using my own fonts and graphic routines. It is time for a change...
Been exploring the 320x240 touch screen color displays that are relatively inexpensive and very nice!
A product I bought has one and it performs very well.
I ordered some that look absolutely identical to the one in my unit, some with 2.4" and some with 3.4"
sizes. The connectors and pin descriptions are identical to the one in my unit. NONE of them come
up and work!
So, contacted the firmware author and he told me the firmware is supposed to recognize at least a
couple different controller chips, but mine does not seem to do that.
So, if someone can point me to some data sheets for a couple of these different controllers I would appreciate it, OR offer some advice.
I think I read somewhere that these LCD modules can do SPI or parallel. The old Optrex is SPI.
BTW I use C not C++
I also believe there could be problems using a 5V module on a 3.3V system, how do I tell the difference?
If I could get the wiring for an SPI interface and the init for the chip, I could do this without too much trouble...
TIA !!!
Glen K4KV