Hello everyone, I'm new to this Forum. I came here to seek help.
I have currently a project running with a logic passcode secured door and there are 10 buttons, numbers from 0 to 9.
With only simplified supplies on virtual parts, I wanted to make a security system that the buttons have to be pressed in the right order for the door to be able to open up.
Let's say the passcode should be 779355
I'm limited to these parts: **The amount of the parts do not matter**
There is no rush to it but I'd like a secure door that if the wrong digit is pressed everything resets, the alarm goes off and the combination has to be typed in again. Thanks for any reply.
I have currently a project running with a logic passcode secured door and there are 10 buttons, numbers from 0 to 9.
With only simplified supplies on virtual parts, I wanted to make a security system that the buttons have to be pressed in the right order for the door to be able to open up.
Let's say the passcode should be 779355
I'm limited to these parts: **The amount of the parts do not matter**
- LED (Green and Red)
- Switch
- Keypad (With the numbers 0 to 9)
- Buffer Gate
- NOT Gate
- AND Gate
- NOT AND Gate
- OR Gate
- NOT OR Gate
- Exclusive OR Gate
- Exclusive NOT OR Gate
- 3-State Buffer (High)
- 3-State Buffer (High-Inverted)
- 3-State Buffer (Low)
- 3-State Buffer (Low-Inverted)
- Delay (Adjustable)
- Timer
- Countdown Timer (Adjustable)
- 3-Input AND Gate
- 3-Input OR Gate
- 3-Input Exclusive OR Gate
- 3-Input NOT Gate
- 3-Input NOT OR Gate
- 3-Input Exclusive NOT OR gate
- Randomizer (Not important)
- Edge Detector
- 2-to-1 Multiplexer
- 1-to-2 Demultiplexer
- 4-to-1 Multiplexer
- 1-to-4 Demultiplexer
- 4-Bit Sync. Counter
- 16x4 Memory Chip
- 4-Bit Shift Register
- 8-Bit Shift Register
- 4-to-2 Encoder
- 2-to-4 Decoder
- 8-to-3 Encoder
- 3-to-8 Decoder
- 16-to-4 Encoder
- 4-to-16 Decoder
- Half Adder
- Half Subtractor
- Full Adder
- Full Subtractor
- Set-Reset Latch
- Toggle Flip-Flop
- Data Flip-Flop
- JK Flip-Flop
There is no rush to it but I'd like a secure door that if the wrong digit is pressed everything resets, the alarm goes off and the combination has to be typed in again. Thanks for any reply.