MikroElektronika TouchKey click Manuale utente

2 3

2. Soldering the headers

3. Plugging the board in

Once you have soldered the headers your

board is ready to be placed into the desired

mikroBUS™socket. Make sure to align the

cut in the lower-right part of the board with

the markings on the silkscreen at the

mikroBUS™socket. If all the

pins are aligned correctly,

push the board all the way

into the socket.

Turn the board upward again. Make sure

to align the headers so that they are

perpendicular to the board, then solder the

pins carefully.

Turn the board upside down so that

the bottom side is facing you upwards.

Place shorter pins of the header into the

appropriate soldering pads.

Before using your click board™, make sure

to solder 1x8 male headers to both left and

right side of the board. Two 1x8 male headers

are included with the board in the package.

4. Essential features

TouchKey click oers a replacement

for standard mechanical switches and

buttons. It can be used in a wide variety of

applications and under diverse conditions,

but perhaps the most interesting feature is

that the keys can be toggled even through a

layer of glass, paper, or similar non-isolating

materials. The response time is just 100mS

at fast mode and 200mS at low power mode.

TouchKey click has four capacitive pads

The board outputs an interrupt singnal for

each pad: OUTA, OUTB, OUTC and OUTD (in

place of default mikroBUS™RST, AN, PWM

and INT pins, respectivelly, respectively).

TouchKey click is designed to work either

with a 3.3V or 5V power supply.

1. Introduction

TouchKey click manual

ver 1.00

0100000080276

TouchKey click

click

BOARD™

www.mikroe.com

Key1

RST

SCK

MOSI

MISO

+3.3V

GND

PWM

INT

SCL

SDA

+5V

GND

MIKROBUS DEVICE CONN.

VCC

2K2

PWR

VCC

PWR SEL.

Key2

Key3

Key4

27pF

100nF

KEY1

KEY2

KEY3

KEY4

KEY1

KEY2

KEY3

KEY4

AHLB

TOG

LPMB

VCC

OUTA

OUTB

OUTC

OUTD

MOT0

VCC VCC VCC

AHLB

TOG

TP0

TP1

TP2

TP3

AHLB

VDD

TOG

LPMB

8MOT0 9

VSS 10

OD 11

SM 12

TPQ3 13

TPQ2 14

TPQ1 15

TPQ0 16

TTP224

LPMB

OUTA

OUTB OUTC

OUTD

MOT0

8. Code examples

MikroElektronika oers free tech support

(www.mikroe.com/support) until the end of

the product’s lifetime, so if something goes

wrong, we’re ready and willing to help!

Once you have done all the necessary

preparations, it’s time to get your click board™

up and running. We have provided examples

for mikroC™, mikroBasic™and mikroPascal™

compilers on our Libstock website. Just

download them and you are ready to start.

.com

6. Dimensions

MikroElektronika assumes no responsibility

or liability for any errors or inaccuracies

that may appear in the present document.

Specication and information contained in

the present schematic are subject to change

at any time without notice.

mm mils

LENGTH 57.15 2250

WIDTH 25.4 1000

HEIGHT* 3.2 126

5. Schematic

7. SMD jumpers

9. Support

25.4 mm / 1000 mils

57.15 / 2250 mils

* without headers

10. Disclaimer

DEFAULT SECONDARY

LPMB Fast Low power

TOG Direct Toggle

AHLB High output Low output

MOT0 Infinite

on time

16 Sec.

Max on time

OD CMOS active Open drain

SM Multi-key Single-key

TouchKey click has three jumpers for putting

the TTP224 IC into dierent operating modes.

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