DM183026 Microchip Technology, DM183026 Datasheet - Page 28

• Manufacturer Part Number: DM183026
• Description: KIT EVALUATION PIC16F/PIC24F
• Manufacturer: Microchip Technology
• Series: mTouch™r

Specifications of DM183026

• Sensor Type: Touch, Capacitive
• Embedded: Yes, Other
• Utilized Ic / Part: PIC16F727, PIC24FJ128GB106
• Processor To Be Evaluated: PIC16F, PIC24F
• Interface Type: USB
• Silicon Manufacturer: Microchip
• Kit Application Type: Sensing - Touch / Proximity
• Application Sub Type: Capacitive Touch
• Kit Contents: 6x Brds, Analyser, Cable, CD
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Voltage - Supply: -
• Interface: -
• Sensitivity: -
• Sensing Range: -
• Lead Free Status / Rohs Status: Lead free / RoHS Compliant

mTouch™ Capacitive Evaluation Kit User’s Guide
FIGURE 4-2:
DS41385A-page 24
I
PLUG-IN BOARDS
2
Direct Key Slider
C™ PICKit Serial
Programming
Plug-in
Slider Plug-in
Slider Plug-in
Key Plug-in
2-Channel
8-Channel
4-Channel
Header
Header
Matrix
Board
Board
Board
J2
J1
Board
The CAP TOUCH – CTMU Evaluation Board comprises 16 A/D channels of the PIC24F
microcontroller connected to connector, J4. This connector is used to interface the
plug-in boards to the evaluation board.
The plug-in boards can be connected to any of the 16 channels of the connector (14)
by changing the configuration settings, which is explained in the Readme.txt file.
A total of 16 LEDs are provided in the CAP TOUCH – CTMU Evaluation Board. These
LEDs are driven directly by the microcontroller through pins on PORTD and PORTE.
When an event occurs, the application firmware also provides feedback by activating
one or more LEDs at that location. The sequence for the activation of the LEDs
depends on the type of touch pads that is interfaced to the evaluation board.
The microcontroller uses its on-chip USB engine and transceiver to communicate to the
PC side interface application, using the USB mini-B receptacle. The demo board also
uses the USB receptacle for application power as a bus-powered device.
Microcontroller and LED power are provided from the V
voltage regulator. Provisions on the board allow for users to add components and
create an externally powered application.
For users interested in using the CAP TOUCH – CTMU Evaluation Board as an
experimental platform, the microcontroller can be reprogrammed using the ICSP™
connector. A 6-pin header is provided for connecting the demo board to any MPLAB
ICD 2 compatible programmer. Since the ICD interface (PGD and PGC) shares some
input channels of the connector J4 (channel 6 and 7), necessary care should be taken
when the debugger is enabled.
The firmware in the CAP TOUCH-CTMU Evaluation Board will have the default plug-in
board channel configurations, which is explained in the Readme.txt file. The user can
reconfigure the channels based on his application by referring to the Readme.txt file.
APPLICATION SIDE BLOCK DIAGRAM FOR THE CSM BOARD
ICSP™
I
2
C™
J4
CPS15:0
ICSPDAT
ICSPCLK
MCLR
V
V
DD
SS
CAP TOUCH – CSM EVALUATION BOARD
PIC16F727
GPIO
V
Vss
DD
J5
BUS
© 2009 Microchip Technology Inc.
16 LEDs (D1-D16)
by Q1, an MCP1702
Sensor Boards
USB mini-B
Receptacle