User manual

Explorer 8 Development Board User’s Guide
DS40001812A-page 30  2015 Microchip Technology Inc.
To select menu options, use the S1 and S2 buttons on the board (see Figure 3-2).
FIGURE 3-2: BUTTON SWITCHES FOR MENU SELECTION
When the board is powered up, a “Microchip Explorer 8 Demo” text is displayed on the
LCD and sent to the serial terminal as well. After a few seconds, the program proceeds
to the first component.
1. Voltmeter
This mode uses the Analog-to-Digital Converter (ADC) module to measure the voltage
across the R25 potentiometer and display a value between 0.00V and 5.00V on the
LCD. (In general, the displayed value is between 0.00V to V_VAR).
FIGURE 3-3: VOLTMETER DISPLAY AND COMPONENT
The voltage reading is updated continuously until the mode is exited by pressing S1.
FIGURE 3-4: VOLTAGE DISPLAY
2. LEDs Toggle
This mode toggles LEDs D1 and D2 alternately with D3 and D4 between fully On and
fully Off states every 100 milliseconds.
FIGURE 3-5: LED TOGGLE DISPLAY