DM183026-2 Microchip Technology, DM183026-2 Datasheet - Page 25

• Manufacturer Part Number: DM183026-2
• Description: KIT EVAL MTOUCH CAPACTIVIE
• Manufacturer: Microchip Technology
• Series: mTouch™r

Specifications of DM183026-2

• Sensor Type: Touch, Capacitive
• Sensing Range: 8 & 12 Buttons/Keys, 2 Sliders
• Interface: I²C
• Voltage - Supply: 5V, USB
• Embedded: Yes
• Utilized Ic / Part: PIC16F, PIC18F, PIC24F, PIC32MX
• Interface Type: USB, I2C, UART
• Operating Voltage: 5 V
• Data Bus Width: 32 bit
• Silicon Manufacturer: Microchip
• Kit Application Type: Sensing - Touch / Proximity
• Application Sub Type: Capacitive Touch
• Kit Contents: 8x Brds, Serial Anaylizer, USB Cable
• For Use With/related Products: PIC16F, PIC24F, PIC18F, PIC32
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Sensitivity: -
• Lead Free Status / Rohs Status: Lead free / RoHS Compliant

© 2010 Microchip Technology Inc.
Click OK to close the Settings window and to display the setup in the Settings tab. To
actually use the logging, check the Log checkbox in the Settings tab (the setup made
previously will be used for logging).
The upper part of the mTouch Diagnostic Tool window contains the status display for
each of the sensors in form of a bar graph. Above each bar graph display is an
indicator; this lights up (changes to light green) when the software detects a touch
event. The bar graph shows the sensor's current state in terms of the A/D conversion
value of its channel. Values shown may be in the range of 0 to 65,535 and are
dimensionless.
Each bar graph has the following information:
• A constantly moving orange vertical bar that indicates the instantaneous
• A blue horizontal indicator across the bar that indicates the moving average of the
• A green horizontal indicator that shows the trip level that the touch channel must
• The average and raw conversion values, displayed numerically at the bottom of
A color key for the indicators is provided at the top of the mTouch Diagnostic Tool
window.
The A/D converter produces values of up to 4096 (12 bits). The evaluation board
contains software algorithms that use scaled values of the raw A/D reading to improve
averaging and overall performance of the hardware.
Right click on the bar graph for each sensor to display menu options: Display Data,
Zoom Settings and Sensor Settings.
FIGURE 3-5:
Selecting Display Data option will display a Display Data dialog containing the settings
for data visualization, as shown in Figure 3-5. The Data Type can be selected between
‘’Raw’’ and ‘’Working’’ where Raw data represents working data values divided by 16.
The Display Data settings can be applied to the sensor selected or to all sensors.
conversion value
touch sensor
reach to become pressed or activated
the bar graph
Using the mTouch™ Sensing Solution
THE mTOUCH™ DIAGNOSTIC TOOL - DISPLAY DATA
SETTINGS (MPLAB
®
IDE)
DS41385C-page 25