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The system allows control of any peripheral devices using the parallel port of any PC. The project consists of two parts: an executive module attached to the printer port and software (two programs).
The executive module is a small board that provides control over four devices. The adopted solution allows further expansion - you can easily attach another module by increasing the number of controlled devices to eight !!! As actuators in the system, triacs or relays can be used. First, they are perfect for controlling bulbs. The relays work only at low switching frequencies, but are suitable for switching large currents. They are perfect as controllers for motors, pumps or electric valves - wherever there is inductance.
The device is especially recommended for anyone who wants to use a PC computer to control external devices, eg a system of window blinds
Selected parameters:
- number of module channels - 4
- galvanic separation from a controlled device (cooperation with devices powered from 230 V mains)
- possibility of selecting a control element - triac or relay
- the possibility of using various control elements in one module
- connection to a computer - printer port
- work under Windows 95/98
- power supply - 12 V ( ZS12445 / 400 mA power supply recommended)
- a printed circuit board, programmed layout and documentation in the set
Available versions with a set of elements for self-assembly AVT2445 / 1 B and AVT2445 / 2 B
Detailed description in EdW 9/00
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The true jewel of Ugears new collection of wooden models is an exquisite Mechanical Treasure Box for jewellery and notes. Mysterious and intriguing puzzle boxes, known in many cultures and especially popular in Victorian England, could not pass by our attention. Beautiful recognizable Ugears design and traditional step-by-step puzzle give you the Treasure Box – delight to the eye and food for brain.
The delicate through-carved work of its lid and sides invites you to gain a glimpse into the mystery that the moving gears conceal. Although only the one who can solve the secrets of the puzzle-box will get to enjoy the treasure of beautiful mechanics in its action. UGears 70031
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EDUCATIONAL EDUCATIONAL MACHINE WITH 8051 (DISPLAY AND KEYBOARD) - PLATEBOARD
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This is an aluminum heat-sink for the Banana Pi RAM Chips. Run cool RAM chips with this little add-on. Just one heat-sink is needed to cover both RAM chips, use the picture below as reference. Signs of RAM or CPU overheating are computer stops responding, frozen screen and power shutt down or cycling.
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