ANY Room electric door locking device using NEMA17 and matrix keypad

thingiverse

This code appears to be a sketch for an Arduino board that controls a motorized lock. The lock is connected to a stepper motor, which is driven by the A4988 driver chip. Here's a breakdown of the pinout for the A4988: * `MS1PIN`, `MS2PIN`, and `MS3PIN` are used to set the step mode (e.g., 4, 8, or 16 steps per revolution). * `DIRPIN` is used to set the direction of the motor. * `ENABLEPIN` is used to enable or disable the driver chip. * `STEPPIN` is the output pin that drives the stepper motor. The code defines several functions for controlling the lock: * `changeLockState`: Changes the state of the lock (0 = unlocked, 1 = locked) based on user input. * `unlock`: Moves the lock to an open position using a specific number of steps (`3200*unlockturns`). * `lock`: Moves the lock to a closed position using a specific number of steps (`3200*unlockturns`). * `emergencyUnlock`: Performs an emergency unlock by moving the lock to an open position quickly. The code also includes functions for reading and writing values from EEPROM: * `EEPROM.read(address)`: Reads a value from EEPROM at the specified address. * `EEPROM.write(address, value)`: Writes a value to EEPROM at the specified address. Overall, this code provides a basic framework for controlling a motorized lock using an Arduino board and an A4988 driver chip.