Pseudorandom implementation that is deterministic across the platforms Java and Arduino(AVR)

simplerandom.c

uint32_t seed = 1203; // or whatever you like

uint32_t next(uint16_t bits) {
  seed = (seed * 0xECE66DL + 0xBL) & ((1L << 31) - 1);
  return (uint32_t) (seed >> (32 - bits));
}

uint32_t nextInt() {
  return next(32);
}

SimpleRandom.java

import java.util.Random;

public class SimpleRandom extends Random {
    long seed;

    public SimpleRandom(long seed) {
        setSeed(seed);
    }

    @Override
    public void setSeed(long seed) {
        this.seed = seed & ((1L << 31) - 1);
    }

    @Override
    protected int next(int bits) {
        seed = (seed * 0xECE66DL + 0xBL) & ((1L << 31) - 1);
        return (int) (seed >> (32 - bits));
    }
}