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Unformatted text preview: tice what
happens to the motor.
• Move the jumper to TEMP (J4). Blow on the temperature sensor located on the
top left corner of the board. Note what happens to the number displayed on the
• Move the jumper back to POT1. Move the jumper from N2 (J1) to D0 (J14). Watch
what happens to the intensity of LED D0 as you turn the potentiometer. DS51557B-page 8 © 2005 Microchip Technology Inc. PICDEM™ Mechatronics
QUICK BOARD SETUP TM FIGURE 1-1: © 2005 Microchip Technology Inc. DS51557B-page 9 PICDEMTM Mechatronics Demo Board User’s Guide
1.4 PICDEM™ MECHATRONICS DEVELOPMENT KIT CONTENTS
The PICDEM™ Mechatronics Development Kit contains the following items:
5. The PICDEM™ Mechatronics Printed Circuit Board (PCB) with motors
Pre-programmed PIC16F917 PICmicro® device
10 wire jumpers
8 2-pin shunts
• PICDEM™ Mechatronics User’s Guide
• Workshop-in-a-Box presentation for training students on the board
(speaker notes included)
• Data sheets for the PIC16F91X, PIC16F685/687/689/690 and motors
• Application notes and other technical documentation
6. Sample kit including a PIC16F690 and PIC12F509 device
7. Microchip screwdriver
8. Registration Card 1.5 PICDEM™ MECHATRONICS LAYOUT
The PICDEM™ Mechatronics is shown in Figure 1-2.
A PIC16F917 microcontroller is populated in the 40-pin socket, in which 22 out of the
36 available I/O pins are dedicated connections to several components on the board.
The remaining 14 pins are available for the user to connect to the other components on
the board, using the provided jumpers wires. The dedicated connections connect to the
• Switch 1 – 1 pin: MCLR
• LCD – 17 pins: VLCD1, VLCD2, VLCD3, COM0, COM1, COM2, COM3, SEG0,
SEG1, SEG2, SEG3, SEG6, SEG11, SEG16, SEG21, SEG22, SEG23
• In-Circuit Serial Programming™ Connector – ICSPDAT, ICSPCLK, MCLR
• RS-232 COM port – 2 pins: RX, TX
A 20-pin socket is provided and is compatible with 8/14/20-pin Flash-based
microcontrollers. A PIC16F690 microcontroller is provided to use in the 20-pin socket,
in which 5 out of the 18 available I/O pins are dedicated connections to several
components on the board. The remaining 13 pins are available for the user to connect
to the other components on the board using the provided jumper wires. The dedicated
connections connect to the following components:
• Switch 1 – 1 pin: MCLR
• In-Circuit Serial Programming (ICSP™) Connector – ICSPDAT, ICSPCLK, MCLR
• RS-232 COM port: RX, TX
Note: Only one microcontroller should be loaded into the board at any given time. Dedicated pins are indicated by a white box enclosing the pin designation next to each
socket. Pay close attention to this designation, as the functionality of the dedicated pins
are affected by the circuitry these pins are connected to. It is recommended that you
use only the pins not designated as dedicated connections in your design.
The remaining components on the board must be connected to the microcontroller
using the provided wire jumpers. The jumpers connect between the headers on either
side of the microcontroller and the header pins next to the respective components on
the board. The components on the board are labeled in Figure 1-2. DS51557B-page 10 © 2005 Microchip Technology Inc. © 2005 Microchip Technology Inc. 11 10 9 12 1 2 16 13 4 17 14 3 15 22 18 21 19 20 19.
22. 18. 16.
17. 15. 14. 7.
13. 6. 4.
3. 40-pin socket
On-board voltage regulator and
39 segment LCD connected to 14
pins on the 40-pin socket
RS-232 socket and associated
32.768 kHz crystal
4 tactile switches
In-Circuit Debugger (ICD) connector
In-Circuit Serial Programming
Over-current protection circuit with
4 half-bridge MOSFET drives with
associated MOSFET drivers and
Current sense for output stage
Back Electromagnetic Force (EMF)
Optical Interrupter for detecting the
speed of the brushed DC motor
Brushed DC motor
Drive screw terminals
9 VDC battery FIGURE 1-2: 8 7 6 5 Legend: PICDEM™ Mechatronics PICDEM MECHATRONICS DEMO BOARD HARDWARE DS51557B-page 11 PICDEMTM Mechatronics Demo Board User’s Guide
The reasons for requiring you to use the provided jumpers to connect components to
the microcontroller are three-fold.
1. You will gain knowledge and experience by physically connecting components to
2. There are more peripherals than pins on the microcontrollers so that you can do
more with the board.
3. Should you choose to use the board to experiment on your own, the board allows
you the flexibility to do so. You can try experimenting with peripherals not
covered in the projects in Chapter 2. “Example Projects”. 1.6 REQUIRED TOOLS
One of the following programming tools is needed in order to complete the projects in
the next chapter:
• PICkit™ 2 Microcontroller Programmer (Part# DV164120)...
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This note was uploaded on 01/29/2014 for the course AA AA taught by Professor Aa during the Winter '10 term at ENS Cachan.
- Winter '10