User manual

Atmel AVR1925: XMEGA-C3 Xplained Hardware User’s Guide [APPLICATION NOTE]
42053A−AVR−02/2013
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Table 4-4. LED connections.
Pin on XMEGA LED
PR0 Yellow LED0
PR1 Yellow LED1
PD4 Red status LED
PD5 Green power indicator LED
4.5 OLED display
The OLED display on the XMEGA-C3 Xplained board is UG-2832HSWEG04 which comes from WiseChip
Semiconductor Inc. It has a resolution of 128 × 32 pixels. In the design the display is connected via a SPI based
interface. Detailed information about the display can be obtained from the display datasheet.
The connection between the MCU and the OLED display is shown in Table 4-5.
Table 4-5. OLED display connection.
Pin on XMEGA QButton
PD0 Data_command
PD1 SCK
PD3 MOSI
PF3 SS
PA3 RESET
4.6 Analog I/O
4.6.1 Temperature sensor
The temperature sensor circuitry consists of a serial connection of a normal and a NTC resistor. The NTC sensor is
from Murata and some part details are shown in Table 4-6, more information can be obtained from the manufacturer’s
we
bsite.
Table 4-6. NTC characteristics.
Global part number NCP18WF104J03RB
Resistance (25°C) 100kΩ ±5%
B-Constant (25/50°C) (reference value) 4250K ±2%
B-Constant (25/80°C) (reference value) 4303K
B-Constant (25/85°C) (reference value) 4311K
B-Constant (25/100°C) (reference value) 4334K
Table 4-7 shows the temperature vs. resistance charact
eristic. The values are available from Murata in the datasheet of
the NTC.