DM163029 Microchip Technology, DM163029 Datasheet - Page 27

• Manufacturer Part Number: DM163029
• Description: BOARD PICDEM FOR MECHATRONICS
• Manufacturer: Microchip Technology

Specifications of DM163029

• Main Purpose: Power Management, Motor Control
• Embedded: *
• Utilized Ic / Part: *
• Primary Attributes: *
• Secondary Attributes: *
• Processor To Be Evaluated: PIC16F917
• Interface Type: RS-232
• Silicon Manufacturer: Microchip
• Silicon Core Number: DM163029
• Silicon Family Name: PICDEM
• Kit Contents: PICDEM Mechatronics Board, MCU Samples, Software And Cables
• Rohs Compliant: Yes
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant, Lead free / RoHS Compliant

Example Projects
2.3.2
Project 2: Dusk Indicator Using the Voltage Comparator
If you have yard lights or a porch light at home that automatically turns on at dusk then
you are familiar with the application we will create in this project. The comparator on
the PIC16F917 will be used to compare the voltage level from the potentiometer to the
voltage level out from the light sensor. When the intensity of the light to the sensor is
reduced below the trip point set by the potentiometer, the LED will turn on.
Objectives
1. Use the internal analog comparator module.
2. Implement software hysteresis to stabilize the comparator output.
Applicable Technical Documents
®
PICmicro
Comparator Tips ‘n Tricks (DS41215)
Jumper Configuration
• C1- (J13) to LIGHT (J4)
• C1+ (J13) to POT1 (J4)
• RD7 (J10) to D0 (J14)
FIGURE 2-4:
PROJECT 2: JUMPER DIAGRAM
© 2006 Microchip Technology Inc.
DS51557C-page 23