The project allows you to switch on a relay output by entering a secret code.
The application can use as an access control system, or can used in safety cupboards which can only operate by authorized persons.
Features
*6 digit secret code with code change option
*code length indicator & key press indicator
*separate input for auto door lock
*manual operation
Installing the system
To get the full use of the system you must install it in the correct way.
Door is holds by the Solenoid & the solenoid driven by the output relay which needs a code to operate.
You must place manual button in the same side. This is the button allows to open the door who’s inside.
The reed switch input must place in the door frame & the magnet must fix in the door align with the reed. So when the door is closed the reed signal send as logic “low” & when door open reed signal send as logic “high”
Code length indicator & key press indicator
When you press a key in the key pad the length indicator will light up & also within the press & hold time the key press indicator will also light up. The length indicator will light up until you enter 6 digits. After entering 6 digits it will switch off notifying you that the secret code length has filled.
If the code is correct then the output relay will be switched on. If the code is incorrect then again start entering. The length indicator will light up & it will wait until all 6 digits filled.
Changing the Password
Enter the previous password. So the output LED will light up & the relay will be switched on. Length indicator will also switch off at this time. Now enter the new secret code (6 digits) & press & hold the # key for 4 seconds. If you see the key press indicator blinks two times then you have successfully entered the new secret code.
Manual button operation
When the door is closed if you enter the manual button it will toggle the lock. When the door is open if you press the manual button it will not operate.
Separate input for auto door lock
This signal coming from the REED switch. From this signal the output relay will be switch off after the door is closed back & aligned with the door frame.
Note that there is a small time delay like 5seconds to turn the relay off (solenoid off) after aligning with the reed switch signal. This is just to ensure that the door is completely aligned with the frame.
The application can use as an access control system, or can used in safety cupboards which can only operate by authorized persons.
Features
*6 digit secret code with code change option
*code length indicator & key press indicator
*separate input for auto door lock
*manual operation
Installing the system
To get the full use of the system you must install it in the correct way.
Door is holds by the Solenoid & the solenoid driven by the output relay which needs a code to operate.
You must place manual button in the same side. This is the button allows to open the door who’s inside.
The reed switch input must place in the door frame & the magnet must fix in the door align with the reed. So when the door is closed the reed signal send as logic “low” & when door open reed signal send as logic “high”
Code length indicator & key press indicator
When you press a key in the key pad the length indicator will light up & also within the press & hold time the key press indicator will also light up. The length indicator will light up until you enter 6 digits. After entering 6 digits it will switch off notifying you that the secret code length has filled.
If the code is correct then the output relay will be switched on. If the code is incorrect then again start entering. The length indicator will light up & it will wait until all 6 digits filled.
Changing the Password
Enter the previous password. So the output LED will light up & the relay will be switched on. Length indicator will also switch off at this time. Now enter the new secret code (6 digits) & press & hold the # key for 4 seconds. If you see the key press indicator blinks two times then you have successfully entered the new secret code.
Manual button operation
When the door is closed if you enter the manual button it will toggle the lock. When the door is open if you press the manual button it will not operate.
Separate input for auto door lock
This signal coming from the REED switch. From this signal the output relay will be switch off after the door is closed back & aligned with the door frame.
Note that there is a small time delay like 5seconds to turn the relay off (solenoid off) after aligning with the reed switch signal. This is just to ensure that the door is completely aligned with the frame.
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