Products
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V to R Convertor |
Bathroom Door Controller |
Lighting/Heating Timer |
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Automatic Gate & Door Controller This is a 68HC11 based module that connects to the drive motor, limit switches, safety beams etc. It is ideally suited to controlling gates and doors that are connected to access control systems. I have used this unit to control gates (both AC and battery backed DC), and garage doors ranging in size from small 1 car sectional doors to large industrial roller doors. This unit is designed to be connected in series with the cable to a Wiegand or Magnetic card reader. It provides electrical isolation and signal conditioning. It will permit extra long cable runs and improve reliability in hostile environments. It has been used mostly to isolate the control equipment from trailing cables and card readers in lift cars. I have a number of 68HC11 based control boards. These include versions with buffered analog and digital inputs, digital, relay and triac outputs, Dallas 1-wire port. More details will be added at a later date. For information please contact - email |
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Customisation Many of the items can be customised to perform a specific task by replacing or modifying the program code. I have done this to produce a turnstile controller and a hospital bathroom door controller, both using the gate controller hardware. Much of the program code I have written is in assembly code and is modular. If you have a specific requirement and would like to consider the possibility, please let me know - email |
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A Few Pictures |
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A typical CPU_1A1 applicaton. |
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Gear tray with Floppy drive at the back, HC11 control board then I/O
board at the front. ISA connection between the two boards. |
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PMB home |
last updated: 7 March 2004 |