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The FLEX Base Boards are designed to export all the connections of a standard Microchip dsPIC® DSC micro-controller. The board connections use the standard 2.54mm pitch; this feature make it easy the usage of customised (by Evidence) or home-made Daughter Boards. The dsPIC® DSC micro-controllers can be mounted on boards in two different ways: 1.by soldering the micro-controller directly on the surface of the board, or 2.by using a socket for installing the micro-controller through the interchangeable Plug-In Modules (PIMs) available from Microchip. With the later, the developer need not worry about the number of programming cycles during the implementation/test/debugging phases, as once the limit is reached, a new PIM can be installed on the socket replacing the older one. The FLEX Base Board is available in two versions (refer Figure below): 
The connectors of the Full and Light Versions are fully compatible, so that an application developed with the Full Version can be easily moved to the Light Version and vice-versa (i.e. with fewer or no modification to the control program). Safety has been one of the most important aspect considered while engineering both versions of FLEX. Both the Base Boards are protected by a resettable fuse, permitting longer duration of the board, even when used by non-highly-skilled users (i.e. in school laboratories for students experiments). Full version Vs Light version: Features | FLEX Full | FLEX Light | Microchip dsPIC® DSC microcontroller dsPIC33FJ256MC710 | ● | ● | Microchip PIC18® PIC18F2550 microcontroller for USB connection (programming using the USB port would be made available very soon) | ● | | ICD2 in-circuit program connector | ● | ● | USB connector for communication | ● | | Set of LEDs for monitoring the board functioning status | ● | ● | Set of connectors for Daughter boards piggybacking | ● | ● | Power supply connectors | ● | ● | Power supply circuitry with resettable fuses | ● | ● | Simplified power supply (7 - 12V) | | ● | Extra-robust switching power supply (9 - 36V) | ● | |
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