#define threshold 512

int main() {
    while(1){ // do this until we are killed
        if(analog10(0) > threshold) {
            // what to do when the sensor sees light
        } else (mav(0,1000); sleep(5); {
            // what to do when the sensor sees dark
        }
        sleep(1.0); // check every 1 second
    }
}