...........continued
Designator
Mounted
From (mEDBG)
To (ATtiny817)
R205
No
CLK_OUT
PA3 CLKI
R206
Yes
CDC UART RX
PB2 UART TX
R207
Yes
CDC UART TX
PB3 UART RX
4.5
Peripherals
4.5.1
LED
There is one yellow LED available on the ATtiny817 Xplained Mini board that can be turned ON and OFF. The LED
can be activated by driving the connected I/O line to VCC.
Table 4-8. LED Connection
ATtiny817 Pin
Function
Shared Functionality
PC0
Yellow LED0
Shared with
4.5.2
Mechanical Button
ATtiny817 Xplained Mini contains one mechanical button. This is a generic user-configurable button, and when a
button is pressed, it will drive the I/O line to GND.
Info:
There is an external pull-up resistor connected to the generic user button.
Table 4-9. Mechanical Button
ATtiny817 Pin
Description
Shared Functionality
PC5
User button
4.5.3
QTouch Buttons
ATtiny817 Xplained Mini contains two QTouch buttons for use with the internal PTC module of the device.
To get started using the QTouch buttons, open the
QTouch Tiny817 Xplained Mini Selfcap Example
in Atmel START
(
http://start.atmel.com/#examples
Tip:
The touch button on the kit is placed in the inner layers of the PCB and has a very small overlay. Due
to the short distance from the sensor to the touch area, it might be oversensitive. Different overlays can be
used to avoid saturation of the sensor.
Table 4-10. QTouch Buttons
ATtiny817 Pin
Function
Description
Shared Functionality
PA6
PTC2
QTBTN1
PA7
PTC3
QTBTN2
ATtiny817 Xplained Mini
Hardware User Guide
©
2019 Microchip Technology Inc.
User Guide
DS50002657B-page 17