Microchip Technology MEB II, Руководство пользователя

Страница: 28 / 52

Multimedia Expansion Board II (MEB II) User’s Guide
DS70005148B-page 28
©
2013-2014 Microchip Technology Inc.
2.1.10 Temperature Sensor
The MEB II includes a Microchip MCP9700T analog temperature sensor, as shown in
Figure 2-10 . The MCP9700T uses one analog channel on the PIC32 microcontroller.
The MCP9700 Linear Active Thermistor™ IC is an analog temperature sensor that con-
verts temperature to an analog voltage. The MCP9700 provides a low-cost solution for
applications that require measurement of a relative change of temperature with ±1°C
accuracy at room temperature.
FIGURE 2-10: TEMPERATURE SENSOR
2.1.11 microSD Card Slot
The MEB II includes a microSD card slot that interfaces to the PIC32 microcontroller
through an SD Interface, as shown in
Figure 2-11 .
FIGURE 2-11: microSD CARD SLOT
2.1.12 Touch Buttons
The MEB II includes two touch buttons that use the Microchip mTouch™ technology,
as shown in
Figure 2-12 . These two touch buttons are interfaced to the PIC32 through
two analog channels.
FIGURE 2-12: TOUCH BUTTONS
Note: In an application, since Bluetooth and microSD share the same pins on the
board, only one can be used at any given time.