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EME150
KIT DESCRIPTION
Please
Note: that all information including pictures on this web page
are copyright to Mini-Kits & must not be used on any other
web site.
The
circuit description below is for those that are wanting to know
if this Kit is suitable for their own application. The Kit comes
complete with detailed circuit & construction information,
including schematic & board overlay diagrams.
The
EME150 Kit has primarily been designed as a PIC Microcontroller
& interface for the new AD9954 HF-DDS Kit, but can be used
as a general purpose Microcontroller board using your own Software.
The board can be used with many of the 44 pin TQFP PIC Microcontrollers,
& has onboard ICD2 Programming Port that can be directly programmed
with the Microchip PICKIT2 or 3 Programmers. The EME150 Kit is
supplied with the powerful PIC18F4520-I/PT & this was chosen
to suit the new AD9954 HF-DDS Kit allowing for future expansion.
The board allows for interfacing of a 4x4 keypad, LCD Display
module, & various input & output circuitry using onboard
header plugs. Most of the PIC18F4520 pins are also available on
board connections that surround the chip.
A number of the Microcontrollers
pins are set asside for various functions & cannot be easily
used as either inputs & outputs for other uses. These include
the RS232 & I2C bus connections to the 24LC256 32k EEprom.
A number of SMD pads are available around the Microcontroller
on the bottom of the board to allow for using 1k SMD pullup resistors
if required.
The
onboard power supply was designed to suit the HF-DDS Kit requirements.
The maximum current is limited to under 1A due to the use of a
1N4007 polarity protection Diode on the +12v input. Due to the
minimal heatsinking on the +5v regulator, the maximum current
on the +5v supply should be kept under 400mA. A +11.4v output
is available on the A10 16 Pin IDC Header, & should be kept
under 400mA. The total current draw from both the +5v regulator
& +11.4v supplies should be kept under 800mA.
EME150
KIT CONSTRUCTORS ALERT
There
are no alerts at this time. For any problems with your kit, please
refer to the kit faults & modification section below.
KIT
FAULTS & MODIFICATIONS
1/
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Monday
11th January 10
