The AWESOME Digital Combination Lock DIY Kit
Easily interfaced with arduino
$ 19.60 |
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The AWESOME Digital Combination Lock DIY Kit
This listing is for a user programmable, user friendly digital combination lock kit. While the video above may be long, it offers detailed assembly instructions, a complete discussion about functionality, and several demonstrations, including a demonstration of how this kit can be used to control high powered AC or DC devices via the on board relay system. All of the following is talked about in the above video. We also sell these fully built and tested for a few dollars extra, so check out our store!
There are two program modes:
THE PROGRAMS:
Program A: When the 2-pin header labelled JMPR (Jumper), is left unconnected, the software will choose program (A) when the device is powered up. The first thing that the program does on power up is look for the logic at this jumper. Program (A) allows for you to instantly program in your own code, which will be the code used until the device powers down.
Program B: When the 2-pin header is connected via the included header connector, the device will power up with the code (10, 10, 10, 9). If you're feeling lazy, or don't want the user to figure out how to re-program your combination lock, make sure that this jumper is connecting the heading when the device is powered on.
THE FEATURES:
1) When the correct code is entered, an on board relay is activated, which allows for you to control 120VAC appliances, and high powered DC actuators, such as motors and solenoids. You can also control electromagnets.
2) When entering a code, there is a time out period. If you take too long to enter in the code, the piezo buzzer will sound. That means that you have to start over your code entry.
3) There are four outputs that can be soldered to, if you're not interested in using the relay. There is a regulated 5v pin, labelled (5v), a ground pin, labelled (GND), a tamper pin, (TAMPER) which goes high when someone enters an incorrect digit, and it will stay high until either a time-out occurs, or until after the incorrect code entry alarm completes, and an unlock output (UNLOCK) that goes high when the correct code is entered. The green LED and the relay will also be active when this pin is high. It will stay high until the user presses a button that resets the combination scan in software by pressing a button.
4) There are four mounting holes that can be used to mount this device to a plank or a wall. If the holes are too small, you can make them bigger by using a hand drill. There are no traces close to these four holes, so you can enlarge them. Be careful when enlarging the hole near the R8 2k Ohm resistor. You need to make sure that you do not touch the resistor pad when enlarging the holes.
5) Easy interface with arduino, and other MCUs.
REQUIREMENTS:
1) 7VDC to 15VDC supply. You can use a 9v battery as the input supply, but if you are looking to use this for longer periods of time, I suggest using a 7-15v wall transformer.
2) Attention to detail
3) Soldering and DIY kit experience is very helpful.
4) Experience in working with AC power. DO NOT USE THE RELAY TO CONTROL AC POWER UNLESS YOU ARE WELL EDUCATED AND EXPERIENCED IN WORKING WITH IT. IT IS DANGEROUS, AND IT CAN KILL YOU!
DOCUMENTATION:
Here is a copy of the schematic diagram: http://www.electroniclessons.com/ADCComboLock.pdf
Here is a copy of the board layout: http://www.electroniclessons.com/ADCComboLockBoard.pdf
Seriously, watch the video. It will show you everything that you need to know. This kit comes with a custom printed circuit board, and ALL of the components required to turn this kit into a complete module. No hard copy instructions are included. Everything that you need is right in the video. The video is your instruction, and your functionality guide. Please do not hesitate to ask any questions you may have. We will answer them quickly!
There are two program modes:
THE PROGRAMS:
Program A: When the 2-pin header labelled JMPR (Jumper), is left unconnected, the software will choose program (A) when the device is powered up. The first thing that the program does on power up is look for the logic at this jumper. Program (A) allows for you to instantly program in your own code, which will be the code used until the device powers down.
Program B: When the 2-pin header is connected via the included header connector, the device will power up with the code (10, 10, 10, 9). If you're feeling lazy, or don't want the user to figure out how to re-program your combination lock, make sure that this jumper is connecting the heading when the device is powered on.
THE FEATURES:
1) When the correct code is entered, an on board relay is activated, which allows for you to control 120VAC appliances, and high powered DC actuators, such as motors and solenoids. You can also control electromagnets.
2) When entering a code, there is a time out period. If you take too long to enter in the code, the piezo buzzer will sound. That means that you have to start over your code entry.
3) There are four outputs that can be soldered to, if you're not interested in using the relay. There is a regulated 5v pin, labelled (5v), a ground pin, labelled (GND), a tamper pin, (TAMPER) which goes high when someone enters an incorrect digit, and it will stay high until either a time-out occurs, or until after the incorrect code entry alarm completes, and an unlock output (UNLOCK) that goes high when the correct code is entered. The green LED and the relay will also be active when this pin is high. It will stay high until the user presses a button that resets the combination scan in software by pressing a button.
4) There are four mounting holes that can be used to mount this device to a plank or a wall. If the holes are too small, you can make them bigger by using a hand drill. There are no traces close to these four holes, so you can enlarge them. Be careful when enlarging the hole near the R8 2k Ohm resistor. You need to make sure that you do not touch the resistor pad when enlarging the holes.
5) Easy interface with arduino, and other MCUs.
REQUIREMENTS:
1) 7VDC to 15VDC supply. You can use a 9v battery as the input supply, but if you are looking to use this for longer periods of time, I suggest using a 7-15v wall transformer.
2) Attention to detail
3) Soldering and DIY kit experience is very helpful.
4) Experience in working with AC power. DO NOT USE THE RELAY TO CONTROL AC POWER UNLESS YOU ARE WELL EDUCATED AND EXPERIENCED IN WORKING WITH IT. IT IS DANGEROUS, AND IT CAN KILL YOU!
DOCUMENTATION:
Here is a copy of the schematic diagram: http://www.electroniclessons.com/ADCComboLock.pdf
Here is a copy of the board layout: http://www.electroniclessons.com/ADCComboLockBoard.pdf
Seriously, watch the video. It will show you everything that you need to know. This kit comes with a custom printed circuit board, and ALL of the components required to turn this kit into a complete module. No hard copy instructions are included. Everything that you need is right in the video. The video is your instruction, and your functionality guide. Please do not hesitate to ask any questions you may have. We will answer them quickly!
