ATAVRQTOUCHX Atmel, ATAVRQTOUCHX Datasheet - Page 165
ATAVRQTOUCHX
Manufacturer Part Number
ATAVRQTOUCHX
Description
BOARD EVAL CAPACITIVE TOUCH
Manufacturer
Atmel
Series
QTouch™r
Specifications of ATAVRQTOUCHX
Sensor Type
Touch, Capacitive
Sensing Range
1 Slider, 1 Wheel, 2 Buttons
Interface
USB
Voltage - Supply
5V, USB
Embedded
Yes, MCU, 8-Bit
Utilized Ic / Part
AT90USB1287, ATxmega128A1
Silicon Manufacturer
Atmel
Silicon Family Name
ATxmega
Kit Contents
Board
Svhc
No SVHC (15-Dec-2010)
Core Architecture
AVR
Core Sub-architecture
AVR19
Kit Features
One Slider, One Wheel And 2
Rohs Compliant
Yes
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
Sensitivity
-
Lead Free Status / Rohs Status
Lead free / RoHS Compliant
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Data memory for ATtiny20 QTouch Library include the following.
Const Data memory for ATtiny20 QTouch Library include the following.
6.5 QTouch Library for ATtiny40 device
ATMEL QTouch Library for ATtiny40 can be used for embedding capacitive touch buttons
functionality into ATtiny40 device application.
This Section describes the QTouch Library Application Programming API and Configuration
interface for QTouch method acquisition using the ATtiny40 devices.
6.5.1
6.5.1.1
10. QTouch Library data memory – 19 bytes, allocated inside the Library.
11. channel_signals – 2 bytes per Sensor, allocated in main.c
12. channel_references – 2 bytes per Sensor, allocated in main.c
13. sensor_delta – 2 bytes per Sensor, allocated in main.c
14. sensor_general_counter – 2 bytes per Sensor, allocated in main.c
15. sensor_state – 1 byte per Sensor, allocated in main.c
16. sensor_ndil_counter – 1 byte per Sensor, allocated in main.c
17. sensor_states – 1 byte, allocated in main.c
1. sensor_threshold, 1 byte per Sensor, allocated in main.c
2. sensor_hyst_threshold, 1 byte per Sensor, allocated in main.c
3. sensor_recal_threshold, 1 byte per Sensor, allocated in main.c
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Salient Features of QTouch Library for ATtiny40
One Physical pin per Touch Button.
1 to 12 Touch Buttons can be configured.
Individual Sensor Threshold, Sensor Hysteresis and Sensor Global acquisition
parameters can be configured.
Signal resolution can be configured.
Adjacent Key Supression (AKS) support.
QTouch Studio support for Touch data analysis.
‘C’ Programming interface for easy inclusion of User application.
QTouch method sensor
165
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