Maxim Integrated MAX86140 - Detailed Description of Hardware; Status LED Indicators; Component List; Power Switch

Maxim Integrated │ 19
www.maximintegrated.com
Evaluates: MAX86140 and MAX86141
MAX86140/MAX86141
Evaluation System
Detailed Description of Hardware
Status LED Indicators
The onboard tri-color LEDs are use as status indicator.
LED Green
Toggling (1Hz 50% duty cycle) = BLE advertising
Toggling (1Hz 10% duty cycle) = BLE connected
LED Red
USB-C cable connected to charger
On = charging
O󰀨 = charge complete
Flash Logging
On = busy preparing the ash memory or ash
memory is full
Toggling (synchronously with the green LED)
= logging
O󰀨 = not logging
Note that ash logging indication takes precedence over
the charging indication. I.e., if the device is plugged into
a charger, the red LED indicates charge status. If ash
logging is enabled while plugged into the charger, the red
LED indicates ash log status.
Power Switch
Press the power switch (SW) to turn on/o󰀨 the device.
When powered on, the green LED will toggle per the LED
indicator section. When powered o󰀨, the green LED will
go out. The red LED may light temporarily, indicating that
the ash log is closing. Plugging in the USB-C cable will
also power up the device.
Battery/Charging
Use the USB-C cable to charge the integrated single-cell
LiPo battery. The integrated PMIC initiates and stops
charging automatically. Charge status is indicated through
the red LED and GUI.
#Denotes RoHS compliant.
Component List
MAX86140 EVSYS
Ordering Information
PART QTY DESCRIPTION
MAXSensorBLE_EVKIT 1
MAX86140 EVSYS µC
PCB
MAX86140OSB_EVKIT 1
MAX86140 EVSYS
Sensor PCB
MAX86141OSB_EVKIT 1
MAX86141 EVSYS
Sensor PCB
150150225 1
Molex, Flex Cable, 25
Pins
CY5677 1 Cypress, BLE Dongle
101181XX-000XXX 1
USB-C to USB-A Cable,
3 Ft.
PART TYPE
MAX86140EVSYS# EVSYS