Datasheet
Microchip Technology Inc. • 2355 West Chandler Blvd. • Chandler, AZ 85224-6199
www.microchip.com
The Microchip name and logo, the Microchip logo and MPLAB are registered trademarks of Microchip
Technology Incorporated in the U.S.A. and other countries. PICtail and PICkit are trademarks of Microchip
Technology Incorporated in the U.S.A. and other countries. All other trademarks mentioned herein are
property of their respective companies. © 2011, Microchip Technology Incorporated, Printed in the U.S.A.
All Rights Reserved. 12/11
DS52026A
Introducing the LCD Explorer Demonstration Board
Overview
The LCD Explorer Demonstration Board is the latest 8-Common LCD Board for
evaluation of the PIC24F and PIC18F LCD devices. The board comes with a
PIC24FJ128GA310 PIM and has a PICtail™ Plus connector to showcase the
PICtail™ Plus with the LCD microcontroller. Future devices with the 8-Common and
1/3 biasing will be supported on this demonstration board.
Features
• Eight Common LCD glass
• Supports 1/3 biasing with:
- External resistor ladder
- Internal resistor ladder
- Charge pump biasing with capacitor
- Supports software as well as hardware contrast control
- Hardware RTCC support
-V
BAT operation during VDD loss, RTCC can run on VBAT without VDD
- Analog pot to display the A/D capability
- Temperature sensor to display temperature using A/D
- PICtail Plus expansion connector for easy system evaluation with the
PICtail Plus daughter cards
(1)
• CTMU switch to showcase touch sensing
• Four switches implemented for software demonstration
• Three ways to power the board:
• Using the 9V power supply
• Through a USB connector
• Using two AAA batteries (not recommended for PICtail Plus)
• Connector for V
BAT current measurement
Demonstration Software Operation
1. Scrolling Banner: In this mode, the LCD will scroll text, displaying the features of
the device on the board. Pressing Switches, S3 or S4, will increase or decrease
the speed of the scroll and Switch S1 or S2 will take the code to the voltmeter.
2. Voltmeter: This mode uses the A/D module to measure the voltage of the R20
pot through the analog channel. A voltage between 0.00V and V
DD is displayed
on the LCD using the LCD module. The voltage is continually updated until the
mode is exited by pressing either S1 or S2 (which will go to Mode 4 or Mode 2).
3. Thermometer: This mode uses the A/D module to measure the temperature
using TC1047AVNBTR, and converts to temperature, both in Celsius and
Fahrenheit. The temperature is displayed on the LCD using the LCD module.
Temperature is continually updated until the mode is exited by pressing either
S1 or S2.
4. Clock: In this mode, the hardware RTCC runs and displays the time on the
LCD screen until the mode is exited by pressing either S1 or S2.
5. Software Contrast: This mode will showcase the software contrast control and
will display the variation by changing the bias levels through software. The
mode is exited by pressing either the S1 or S2 switch. The software, docu-
mentation, firmware and other material for this demo can be downloaded from:
http://www.microchip.com/LCDExplorer
Note 1: Only the upper slot can be used for the PICtail Plus.
Europe
Austria - Weis - 43-7242-2244-39
Denmark - Copenhagen - 45-4450-2828
France - Paris - 33-1-69-53-63-20
Germany - Munich - 49-89-627-144-0
Italy - Milan - 39-0331-742611
Netherlands - Drunen - 31-416-690399
Spain - Madrid - 34-91-708-08-90
UK - Wokingham - 44-118-921-5869
11/29/11
Americas
Atlanta - 678-957-9614
Boston - 774-760-0087
Chicago - 630-285-0071
Cleveland - 216-447-0464
Dallas - 972-818-7423
Detroit - 248-538-2250
Indianapolis - 317-773-8323
Los Angeles - 949-462-9523
Phoenix - 480-792-7200
Santa Clara - 408-961-6445
Toronto - 905-673-0699
Asia/Pacific
Australia - Sydney - 61-2-9868-6733
China - Beijing - 86-10-8569-7000
China - Chengdu - 86-28-8665-5511
China - Chongqing - 86-23-8980-9500
China - Hangzhou - 86-571-2819-3187
China - Hong Kong SAR - 852-2401-1200
China - Nanjing- 86-25-8473-2460
China - Qingdao - 86-532-8502-7355
China - Shanghai - 86-21-5407-5533
China - Shenyang - 86-24-2334-2829
China - Shenzhen - 86-755-8203-2660
China - Wuhan - 86-27-5980-5300
China - Xian - 86-29-8833-7252
China - Xiamen - 86-592-2388138
China - Zhuhai - 86-756-3210040
India - Bangalore - 91-80-3090-4444
India - New Delhi - 91-11-4160-8631
India - Pune - 91-20-2566-1512
Japan - Osaka - Tel: 81-66-152-7160
Japan - Yokohama - 81-45-471-6166
Korea - Daegu - 82-53-744-4301
Korea - Seoul - 82-2-554-7200
Malaysia - Kuala Lumpur - 60-3-6201-9857
Malaysia - Penang - 60-4-227-8870
Philippines - Manila - 63-2-634-9065
Singapore - 65-6334-8870
Taiwan - Hsin Chu - 886-3-5778-366
Taiwan - Kaohsiung - 886-7-213-7830
Taiwan - Taipei - 886-2-2500-6610
Thailand - Bangkok - 66-2-694-1351