PICDEM TM LAB DEVELOPMENT
BOARD USER ’S GUIDE
Chapter 5. Analog-to-Digital Converter Peripheral Labs
5.1
5.2
INTRODUCTION
The Analog-to-Digital Converter (ADC) peripheral allows conversion of an analog input
signal to a 10-bit binary value representing that signal so that it can be used in firmware.
The following labs cover some of the fundamental features of the Analog-to-Digital
Converter (ADC) peripheral found on the PIC16F690 including some unique
applications.
ADC LABS
The labs that will be implemented in this chapter are:
? Lab 1: Simple ADC
? Lab 2: Audible Temperature Sensor
5.2.1
Reference Documentation
All documentation is available on the PICDEM? Lab Development Kit accompanying
CD-ROM
? PIC16F690 Data Sheet (DS41262)
- Section 4: I/O Ports
- Section 5: Timer0 Module
- Section 9: Analog-to-Digital Converter (ADC) Module
? Timers: Timer0 Tutorial (Part 1) (DS51628)
? Timers: Timer0 Tutorial (Part 2) (DS51702)
? “Introduction to MPLAB ? IDE and HI-TECH C ? PRO for the PIC10/12/16 MCU
Family Lite Mode Compiler Tutorial” (DS41322)
5.2.2
Equipment Required
To complete the labs in this section, the following components are required:
1.
2.
3.
4.
5.
6.
7.
8.
9.
10.
1 – 100 Ω resistor
4 – 470 Ω resistors
1 – 1K Ω resistor
1 – 10 K Ω resistor
1 – 100 K Ω potentiometer
1 – 10 K Ω NTC Thermistor
4 – Light Emitting Diodes
1 – IRFD010 N-Channel MOSFET
PIC16F690 populating socket U2
Assorted jumper wires
? 2009 Microchip Technology Inc.
DS41369A-page 75
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