WICED Evaluation Board
WICED™ Evaluation Board User Guide
Doc. No.: 002-19353 Rev. *A
8
2.7 USB-Serial UART Interface
In addition to a program and debug interface, the EVB USB interface provides a USB-serial UART interface to the
microcontroller on the WICED module.
Almost all WICED SDK example applications use the UART to print status and debug information. Characters that appear
on either the UART transmit or receive lines cause the UART LED to flash on and off.
2.8 Expansion Header
The expansion header provides power for external devices and enables custom sensor interfaces and expansion boards
to be connected to the EVB. Pin numbering and a pin description is provided in
The expansion header is connected in parallel with sensors and buttons on the sensor interface breakoff board. Before
connecting a custom device to the expansion header, either break off the sensor interface board, or depopulate
components on the sensor interface that may interfere with the operation of the custom device.
Pin Name
Pin No.
Pin No.
Pin Name
VDD_3V3
1
2
GND
ADC1
3
4
ADC2
ADC3
5
6
DAC1
DAC2
7
8
GND
MODULE_WAKEUP
9
10
HEADER_SRST_L
MODULE_UART_TX
11
12
MODULE_UART_RX
SPI_MOSI
13
14
SPI_MISO
SPI_SCK
15
16
SPI_SS_L
GND
17
18
VDD_3V3
Table 2-3. Expansion Header Pin Connections
References
The references in this section may be used with this document.
Note
: Cypress provides customer access to technical documentation and software through the WICED website
). Additional restricted material may be provided through the Customer Support Portal (CSP) and
Downloads.
For Cypress
documents, replace the ‘xx’ in the document number with the largest number available to ensure you have
the most current version of this document.
Document (or Item) Name
Number
Source
[1] WICED Quick Start Guide
WICED-QSG2xx-R
