MPaper: How to read touch (or fingerUp) just one time.

Steve1

I am programming my M5Paper with the Arduino IDE 2.2.1. I have tried everything I can think of to get just a single pair of x,y cordinates from a single touch on the M5Paper. I have tried comparing new coordinates with old and so on, but I haven't been able get just a single pair of coordinates and then wait for the net touch. Could someone show me how to achieve this?

felmue

Hello @Steve1

doesn't this example work for you?

Thanks
Felix

Steve1

Well, yes it does. But why does the readFinger() have to be reaad three times?

for(int i=0;i<2; i++){
tp_finger_t FingerItem = M5.TP.readFinger(i);

felmue

Hello @Steve1

actually it is only read twice (once for i = 0 and a second time for i = 1). The reason is that the touch screen can handle more than one touch point at the same time.

Thanks
Felix

Steve1

Thanks for your patience ;-)

felmue

Hello @Steve1

you are very welcome.

Thanks
Felix