problem with pulsesensor and LCD Shield keypad

Other Hardware Sensors
1

Good afternoon.

I have an LCD and a sensor "pulsesensor" the LCD connected to the A0 and the sensor to A1, I use the keys to navigate in a menu, but when I have the sensor connected I create conflict, the sensor shows me unexpected data and sometimes they are performed actions as if the keys were pressed, if I enter the tab where I have the sensor function always shows me a value of (163), which is not an expected value and I have some interaction with the sensor the value goes up but returns to be 163.

Can somebody help me? thank you

Greetings from Colombia

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2

Your sensor works OK with the example code in the library? (without the LCD-shield)

If so, read the sensor twice (dummyread first) to get rid of charge on the input cap.
(you know A0 id pulled HIGH when the shield is installed)