MSP430 LaunchPad (MSP-EXP430G2) with Capacitive Touch BoosterPack (KT35S430-S1) User Guide 1.1 Overview

MSP430 LaunchPad (MSP-EXP430G2) with Capacitive Touch BoosterPack (KT35S430-S1) User Guide 1.1 Overview
Rev.: 03
MSP430 LaunchPad (MSP-EXP430G2) with Capacitive Touch
BoosterPack (KT35S430-S1) User Guide
1 430BOOST-SENSE1 Overview
1.1 Overview
The KT35S430-S1 ITO Capacitive Touch BoosterPack is an extension module for the MSP-EXP430G2
MSP430 LaunchPad Value Line Development Kit (see Figure 1).
Figure 1. Capacitive Sense BoosterPack With LaunchPad
The ITO Capacitive Sense BoosterPack features the new MSP430G2xxx devices with transparent ITO glass
sensor. The BoosterPack includes a converter board and an ITO glass capacitive touch sensor. The user
experience application demonstrates capacitive sense as standalone feature by showing the user interaction
directly with the onboard LEDs.
KT35S430-S1 features:
l
Single layer of ITO Glass Sensor with high transmittance
l
3.5 inch diagonal
l
Simply applied on any type of LCD displays
l
5 function keys
l
Instant feedback to user interaction by 2 LEDs
l
Low product cost
l
Low customization cost
- Customization on numbers of keys, key position and FPC
1.2 Kit Contents
The KT35S430-S1 kit
includes two components:
•One ITO Glass Capacitive
Touch sensor with five
function keys and FPC
pinout (Figure 2)
•One converter board for
connected the ITO glass
sensor to the
MSP-EXP430G2 MCU
board (Figure 3)
Figure 2. ITO Glass Capacitive Touch sensor
Figure 3. Connector board
Rev.: 03
2 Hardware Preparation
2.1. Remove the J3 connections on the LaunchPad to disconnect TXD, and
RXD from P1.1 and P1.2.
2.2. Remove the J5 connections on the LaunchPad to disconnect the
LaunchPad LEDs from P1.0 and P1.6.
2.3. Remove R34 and C24 on the LaunchPad to disconnect it from P1.3.
2.4. Use the MSP430G2211 device witch come from the LaunchPad
Development Kit and insert it in the LaunchPad MCU socket.
2.5. Connect the ITO Capacitive Sensor and the converter board to the
LaunchPad with proper orientation by ensuring that the “Kentec Display”
text are in the same direction as the text on the Launchpad.
2.6. Connect the LaunchPad with an USB cable to a PC.
NOTE: The 32-kHz crystal/oscillator on pins 12 and 13 is not required for the ITO Capacitive Sensor demo.
3 Software Preparation
Bellow attachment is the source code for the projects, compile and download it to the LaunchPad.
NO.
Document
1
Source code package
Attachment
4 ITO Capacitive Touch BoosterPack Hardware
As shown in Figure 4 and Table 1, the ITO Capacitive Touch
BoosterPack is an advance capacitive touch application
example for the new MSP430G2xxx touch-sense enabled I/O
pins. The demo shows 5 touch button for HMI, In addition,
there are two LEDs on the board to give instant feedback to
user interaction.
Figure 4. ITO Capacitive Sensor
Table 1. BoosterPack Interface
Description
Pin
MSP430 Port
BoosterPack Signal
1
VCC
VCC
2
P1.0
TACLK Input
3
P1.1
CA_Ref
4
P1.2
S1
Touch-sense 1
5
P1.3
S2
Touch-sense 2
6
P1.4
S3
Touch-sense 3
7
P1.5
S4
Touch-sense 4
8
P1.6
S5
Touch-sense 5
9
P1.7
CA_Out
10
RST/SBWTDIO
NC
Reset line for SBW JTAG data, not connected to BoosterPack
11
TEST/SBWTCK
CN
Test line for SBW JTAG clock, not connected to BoosterPack
12
P2.6/XOUT
LED1
LED1 positive drive
13
P2.7/XIN
LED2
LED2 positive drive
14
GND
GND
Supply ground
Supply voltage
Timer0_A clock signal input
Comparator reference
Comparator output
Rev.: 03
5 Schematics and PCB Layout
5.1 Schematics
1
2
3
R15
VCC
R3
P1
D
1
2
3
4
5
6
7
8
9
10
4
P2
R4
R2
R1
P1.0
P1.1
P1.2/CA2
P1.3/CA3
P1.4/CA4
P1.5/CA5
P2.0
P2.1
P2.2
LED2
1
2
3
4
5
6
7
8
9
10
XIN
XOUT
TEST
RST
P1.7/CAOUT
P1.6/CA6
P2.5
P2.4
P2.3
LED1
D
C
C
WOUT
R5
R6
R7
R8
SOUT
R9
R10 R11 R12 R13 R14
CN1
J1
W1
1
2
3
S5
W2
J3
P1.2/CA2
P1.3/CA3
P1.4/CA4
J5
1
2
3
1
2
3
4
5
6
7
8
S1
S2
S3
1
2
3
S4
J2
B
W3
S3
WOUT
W4
1
2
3
J4
P1.5/CA5
P1.6/CA6
P1.7/CAOUT
1
2
3
J6
S4
S5
SOUT
1
2
3
S2
C6
C7
C8
C9
B
C10
W5
S1
C1
C2
C3
C4
C5
Title
A
Size
Number
Revision
A4
Date:
File:
1
2
19-Jul-2011
Sheet of
D:\KentecDisplay\Element14\430Booster\PCB\BoosterPad.ddb
Drawn By:
3
4
Figure 5. Converter board schematic
5.2 PCB Layout
Figure 6. Converter board layout, Top layer
Figure 7. Converter board layout, Bottom layer
A
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