the gp2y0a21yk has an analog output so it should be enough to power it from Bela and connect its analog out to one of the analog inputs, then it can be read from Pd with one of adc~ 3 through 8. I remember using something similar to this in the past and it was inducing a lot of noise into the rest of the circuit. This was on a Bela (not BelaMini) and the issue was resolved by plugging the ground wire for the sensor into P8.01 instead of the more common P9.01 pins. For BelaMini one would have to try all the available ground points to find the optimal one.
The RCWL-0516 seems to have a logic output, high or low depending on whether movement is detected (it's a motion sensor, it does not measure distance from what I can tell). If that's what you need , then you should be able to simply connect the TRIG output to a Bela digital input and read it in Pd with one of [r Bela_digitalIn], after setting up the input with [s Bela_setDigital] , as per the PureData/Digital example
