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Category: Security Circuits / Lock Circuits This circuit is also crossed to: AVR Microcontroller , Views: 4103 Rank: 0 This circuit its not write any data to the telecard. The ATtiny26 read the 16 first bytes of telecard and then store them to internal eeprom of ATtiny26. This safety-lock circuit use the new AVR microcontroller series, the ATtiny. This micros (and new ATmega8, ATmega16 etc) are powerful microcontrollers with new features like..* internal RC calibrated oscillator for 1,2,4 and 8 MHz speed (working with external RC up to 16 MHz too) * Analog to digital converter 10-bit (10 channels) * Very high speed In System Programming (compare it with AT90Sxxxx series) * int visit page. * internal RC calibrated oscillator for 1,2,4 and 8 MHz speed (working with external RC up to 16 MHz too) * Analog to digital converter 10-bit (10 channels) * Very high speed In System Programming (compare it with AT90Sxxxx series) * int http://www.serasidis.gr/circuits/safety_lock/safety_lock.htm
Related circuits This electronic lock can be used with any type of iButtons you may already have, since the only thing needed is the internal serial number, that's different for every iButton. The command used to read the serial number is the same for all iButtons. The iButton family code that goes with every... The door opener derives its power from a 9-V battery. A momentary-contact switch, 52, is provided in the event that manual opening and closing is required. Relay Kl is a 9-V type and relay K2 is a 117"Vac latching-type, which automatically latches with the first burst of current and opens on... Door electronic lock with Keypad It is a relatively simple circuit of electronic lock of safety with code of 7 digits. It should is given attention in the time that will be stepped the keys, that shape code and it does not exist it delays. With the right step of keys and if code is right then is activated exit Q7 for roughly 4... A block pinout diagram of the LS7220 keyless-lock IC is shown. The keypad must provide each key with a contact to a common connection. In this case, the common connection goes to the positive supply rail so that when a key is pressed, a positive voltage is passed through to the wire associated... 1 button Security locking circuit The Button Code is a system that allows a single button to act as a keypad. The user enters a 4 digit code into the system using button taps. The button can be placed where the public can access it since like a keypad there are many combinations to keep guessers from activation the system. When... Programmable Code Lock circuit A programmable code lock can be used for numerous applications in which access to an article/gadget is to be restricted to a limited number of persons. Here is yet another circuit of a code lock employing mainly the CMOS ICs and thumbwheel switches (TWS) besides a few other components. It is... This circuit can be used to operate an electric strike or an electromagnetic lock on a door. It is not the door being opened/closed, but a small electromagnetic strike which unlocks the door. The opener has the following features currently programmed in software: Combination lock using PIC16F84 This is my electronic combination lock to use with an outdoor gate. The functionality is implemented in software. It turns on a relay (usually to open a door) for a few seconds if someone enters the valid code. Alternatively, it works as an ON/OFF switch, which toggles the relay each time the... Electronic Code Lock Project using 8051 Microcontroller
Electronic Keypad Lock Project using 8051 Microcontroller (At89C51) with circ...
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