krunal_299 said:Hi all!
here i found pretty one touchscreen lcd: LTP283QV-F03 from Samsung Electronics Pvt. Ltd.
It has SPI interfsce as well 18 parallel interface and with 4 wire touchscreen (x+,x-, y+,y-).
But i don't know how to read (X,Y) co-ordinate on touch screen.
Basic outlay i knew that connect 4 wires to ADC pins of controller then to get X: drive x bar with supply and get reading on any of y And similar reverse procedure for Y position
How can i get particular position on the lcd after reading ADC values by microcontroller , any equation?
Thanks and Best regards!
krunal_299 said:Hi all!
here i found pretty one touchscreen lcd: LTP283QV-F03 from Samsung Electronics Pvt. Ltd.
What is the cost of K350QVG-V1-F module of the link **broken link removed** How can I interface the module (in hardware) with this kit from actel SmartFusion Evaluation Kit | Development Kits - Actel ?
What is the cost of K350QVG-V1-F module of the link **broken link removed** How can I interface the module (in hardware) with this kit from actel SmartFusion Evaluation Kit | Development Kits - Actel ?
My touchscreen has four leads comming out via FPC, according literature they should be +X -X , +Y -Y.
now for making sure which is +X and -X and which one is -Y +Y, i was measuring resitance between the pins
i got no connections infinite resistance between pin 1 and 3 and 300 ohms between pin 2 and 4,
I am going to design controller for Touchscreen but i doubt touchscreen itself i have got two of those and both are showing similar behaviour
that is only between two pins i am getting resistance i.e pin 2 and 4 , and in rest all combinations (1,2) (3,4) (1,3) i am getting infinite resistance...
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