How to Build a 10-Key Serial Keypad. Creating & Using Asynchronous Serial Solutions: How to create your own "Serial Keypads". This project uses PicBasic Pro, and the PIC16C620A microcontroller to build a 10-key serial keypad. The PIC16C620A only costs $2.50 each in single quantities, and the keys are simple normally-open, push-button switches. Build a user input keypad for your next basic stamp or PIC design and use a single I/O-pin for the interface.
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How to Build a 10-Key Serial Keypad. Creating & Using Asynchronous Serial Solutions: How to create your own "Serial Keypads". This project uses PicBasic Pro, and the PIC16C620A microcontroller to build a 10-key serial keypad. The PIC16C620A only costs $2.50 each in single quantities, and the keys are simple normally-open, push-button switches. Build a user input keypad for your next basic stamp or PIC design and use a single I/O-pin for the interface. [ How to Build a 10-Key Serial Keypad. Creating & Using Asynchronous Serial Solutions: How to create your own "Serial Keypads". This project uses PicBasic Pro, and the PIC16C620A microcontroller to build a 10-key serial keypad. The PIC16C620A only costs $2.50 each in single quantities, and the keys are simple normally-open, push-button switches. Build a user input keypad for your next basic stamp or PIC design and use a single I/O-pin for the interface. ]
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Five projects for April Fools Day! (77k) Build a mysterious lamp, maddening dripper, TV remote control blocker, rattle box, and a truly smelly project.
Build an Infrared night scope
Недорогой аудиоплеер. CD-ROM and Tape controller with Remore Control (170k). Build you nonexpensive AUDIO PLAYER ! (на русс.яз.)
Electronic Security door key 2
Electronic Security door key 1
Parallel port dongle (12C508A) By using the PIC 12C508 MCU from Microchip, we can make a cheap and simple hardware protection key (dongle).
Dongle -serial port (12C508A) This device is NOT a professional dongle. You can use it to protect your software , but you must agree with its major disadvantage: it needs one of the COM ports on your PC. The advantages are the low cost and simplicity.
Smart lock (12C508A). The base sends a data sequency (the password) which is recognized by the key. The key checks the sequency and -if it recognises it -sends to the base another data sequency, as an answer to the password. At the time when the base gets a correct answer (which means that the key has been introduced), the relay is put into action, and it can command a number of consummers.
1.5 Volt Strobo with a Kodak Max Disposable Camera. How to modify a Kodak Max Disposable Camera Flash Circuit and build a 1.5 volt supply STROBO. (Yes! just using a 1.5 volt AA alkaline battery!!)
Five projects for April Fools Day! (77k) Build a mysterious lamp, maddening dripper, TV remote control blocker, rattle box, and a truly smelly project.
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