Laird Sterling-EWB, Руководство пользователя

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J-Link JTAG header for access to EWB JTAG
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2.54 mm pitch pin header connector and level-shifter supporting connection to an external host MCU (1.8V - 5.0V logic
levels).
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On-board Bosch Sensortec BME680 environmental sensor
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Two buttons and four LEDs for user interaction
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One Reset button
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One Wake button
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Optional footprint for Apple MFI co-processor (not populated)
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Optional footprint for Microchip ATECC608A-SSHDA authentication IC (not populated)
Sterling-EWB
Module
DC Jack
4.4-10V DC
Bench Supply
Header
4.4-10V DC
4xAA Battery
Terminal
Connector
USB2
(opt.)
External Host
Interface
Header (J4)
LED1 – LED4
External
3.3V USB
Header
SW8
Select single or
separate WIFI
3.3V power
supply
SW7
Select USB or
Ext DC power
source
Module
Reset
Button
USB1
Debug/Program
Interface
JTAG
Connector
SW5 & SW6
BOOT Option
Select
External
VBAT
Header
J5
EWB PIN
Header
J6
EWB PIN
Header
Bluetooth
Interface
Header
UART1
Header
DC Power
Indicator LED
J1 3.3V WIFI
Current
Measure
J15 3.3V DVK
Current
Measure
J19 3.3V MCU
Current
Measure
MCU Wake
Button
Gas/
Pressure/
Temp/
Humidity
Sensor
Authentication
IC (opt.)
MFI Co-processor
(opt.)
SW9, SW10, SW11
DVK peripheral
disable switches
UART3
Header
UART6
Header
SW12 DVK
peripheral disable
switch
UART
Activity
Indicator
LED
Figure 1: Development board contents and locations