#content

• latch.cpp implementation of latch
• latch.h header of latch
• makefile builds, run, checks and debugs
• motor.cpp implementation of motor
• motor.h header of motor
• readme.markdown holds the documentation
• sensor.cpp implementation of sensor
• sensor.h header of sensor
• test.cpp instantiates all objects and implements FSM

#implementation The latch class consists of the motor and the sensor. Opon calling the constructor of latch both classes are initialized. The test file creates all objects and implements a FSM. It loops over the contents of the sensor array and sums up all values. The implementation assumes that summing up all values does cause any overflow (ST_SUM). In ST_CAL the average value of the sensor array is calculated. ST_SEEK_POS tries to find the calculates average value within the sensor array. If it is not found we enter ST_SEEK_MIN_DIST which loops over all values in the sensor array and tries to find the sensor value heaving the smallest distance to the avg value. Finally ST_SET_MOTOR sets the motor to the sensor value of the minimal distance and opens the door.

#built Use "make" to build src files

#run Use "make run" to execute binary

#issues latch.cpp:[23-24] In order to store the values of the sensor array I used a buffer that is allocated as an auto variable. A pointer to this buffer is passed to the latch class and to the sensor class. I am not sure why the assigment of the pointers did not work. When debugging with gdb I was not able to see the assignment of the pointers. I used memcpy to copy the content of the pointers.