4.2.1 QT1 Xplained Pro MC Extension Headers

QT1 Xplained Pro MC implements two Xplained Pro standard extension headers marked with EXT1 and EXT2 in silkscreen. These headers makes it possible to connect the board to a Xplained Pro MCU board with a MCU featuring a PTC module. The pin-out definition for the extension headers can be seen in the tables below.

Table 4-2. QT1 Xplained Pro MC Extension Header 1
Pin on EXTFunctionDescription
1IDCommunication line to ID chip.
2GNDGround
3LED_0Slider, LED 0 (Yellow)
4LED_1Slider, LED 1 (Yellow)
5Y_SY-line for Slider
6Y_WY-line for Wheel
7LED_2Slider, LED 2 (Yellow)
8LED_3Slider, LED 3 (Yellow)
9Y_BY-line for Buttons
10Not Connected
11Not Connected
12Not Connected
13Not Connected
14Not Connected
15LED_4Slider, LED 4 (Yellow)
16LED_5Slider, LED 5 (Yellow)
17LED_6Slider, LED 6 (Yellow)
18LED_7Slider, LED 7 (Yellow)
19GNDGround
20VCCTarget supply voltage
Table 4-3. QT1 Xplained Pro MC Extension Header 2
Pin on EXTFunctionDescription
1Not Connected
2GNDGround
3X_1X-line 1 (for Slider and Wheel)
4X_2X-line 2 (for Slider and Wheel)
5X_3X-line 3 (for Button 1, Slider, and Wheel)
6X_4X-line 4 (for Button 2, Slider, and Wheel)
7LED_8Button 1, LED 8 (Yellow)
8LED_9Button 2, LED 9 (Yellow)
9LED_RWheel, RGB LED (Red)
10LED_GWheel, RGB LED (Green)
11Not Connected
12Not Connected
13Not Connected
14Not Connected
15LED_BWheel, RGB LED (Blue)
16Not Connected
17Not Connected
18Not Connected
19GNDGround
20VCCTarget supply voltage