Humidity Sensor
PICtail™ Demo Board
User’s Guide
©
2005 Microchip Technology Inc.
DS51594A
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EE
L
OQ
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procedures are for its PICmicro
®
8-bit MCUs, K
EE
L
OQ
®
code hopping
devices, Serial EEPROMs, microperipherals, nonvolatile memory and
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DS51594A-page ii
©
2005 Microchip Technology Inc.
HUMIDITY SENSOR PICTAIL™
DEMO BOARD USER’S GUIDE
Table of Contents
Preface ........................................................................................................................... 1
Introduction............................................................................................................ 1
Document Layout .................................................................................................. 1
Conventions Used in this Guide ............................................................................ 2
Recommended Reading........................................................................................ 3
The Microchip Web Site ........................................................................................ 4
Customer Support ................................................................................................. 4
Document Revision History ................................................................................... 4
Chapter 1. Product Overview
1.1 Introduction ..................................................................................................... 5
1.2 Kit Contents .................................................................................................... 5
1.3 Humidity Sensor PICtail™ Demo Board ......................................................... 5
1.4 Associated Tools ............................................................................................ 7
1.5 Assembly Code Modules ................................................................................ 8
Chapter 2. Setup and Installation
2.1 Introduction ..................................................................................................... 9
2.2 Required Tools ............................................................................................... 9
2.3 Setting up the Humidity Sensor PICtail™ Demo Board ................................. 9
2.4 Connecting to Alternate Tools ...................................................................... 11
Chapter 3. Operation
3.1 Introduction ................................................................................................... 13
3.2 Configuring the Humidity Sensor PICtail™ Demo Board ............................. 13
3.3 Using the Humidity Sensor PC Program ...................................................... 13
3.4 Humidity Sensor Calibration ......................................................................... 15
Chapter 4. Modified Circuit
4.1 Introduction ................................................................................................... 17
4.2 The “Reduced Current” Circuit ..................................................................... 17
©
2005 Microchip Technology Inc.
DS51594A-page iii
Humidity Sensor PICtail™ Demo Board User’s Guide
Appendix A. Schematic and Layouts
A.1 Introduction .................................................................................................. 19
A.2 Highlights ..................................................................................................... 19
A.3 Demonstration Board Description ................................................................ 19
A.4 The “Reduced Current” Modification ............................................................ 20
A.5 Additional Comments ................................................................................... 20
Appendix B. Bill Of Materials (BOM)
B.1 Humidity Sensor PICtail™ Demo Board BOM ............................................. 25
B.2 BOM for Humidity Sensor and Other Capacitors in Box .............................. 26
B.3 BOM for “Reduced Current” Modifications ................................................... 26
Worldwide Sales and Service .....................................................................................28
DS51594A-page iv
©
2005 Microchip Technology Inc.
HUMIDITY SENSOR PICTAIL™
DEMO BOARD USER’S GUIDE
Preface
NOTICE TO CUSTOMERS
All documentation becomes dated, and this manual is no exception. Microchip tools and
documentation are constantly evolving to meet customer needs, so some actual dialogs
and/or tool descriptions may differ from those in this document. Please refer to our web site
(www.microchip.com) to obtain the latest documentation available.
Documents are identified with a “DS” number. This number is located on the bottom of each
page, in front of the page number. The numbering convention for the DS number is
“DSXXXXXA”, where “XXXXX” is the document number and “A” is the revision level of the
document.
INTRODUCTION
This chapter contains general information that will be useful to know before using the
Humidity Sensor PICtail™ Demo Board. Items discussed in this chapter include:
•
•
•
•
•
•
Document Layout
Conventions Used in this Guide
Recommended Reading
The Microchip Web Site
Customer Support
Document Revision History
DOCUMENT LAYOUT
This document describes how to use the Humidity Sensor PICtail™ Demo Board as a
development tool to emulate and debug firmware on a target board. The manual layout
is as follows:
•
Chapter 1. “Product Overview”
– This is an introduction to the Humidity Sensor
PICtail™ Demo Board. It covers the kit contents, associated tools and how they
work together.
•
Chapter 2. “Setup and Installation”
– Covers the initial set-up of the Humidity
Sensor PICtail™ Demo Board. It lists the required tools, shows how to connect
this board and demonstates how to verify the set-up.
•
Chapter 3. “Operation”
– This chapter discusses using the humidity sensor on
the PCB and using the software PC Application.
• Chapter 4. “Modified Circuit”
– Gives the modifications necessary to increase
measurement resolution by a factor of 100 (see AN1016 for details)
•
Appendix A. “Schematic and Layouts”
– Gives detailed information on the
Humidity Sensor PICtail™ Demo Board. Includes detailed circuit explanation,
schematic and board layouts.
•
Appendix B. “Bill Of Materials (BOM)”
– Gives detailed information on the
Humidity Sensor PICtail™ Demo Board’s firmware.
©
2005 Microchip Technology Inc.
DS51594A-page 1
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