Power; Reset - Ublox EVK-NORA-W36 User Manual

3.1 Power

EVK-NORA-W36 can be powered from five sources:
Source Component / pin
USB-C J5
Li-Ion battery J4
VIN J10, pin 5
VSHLD J10, pins 2 and 4
Power header J8
Table 1: EVK-NORA-W36 power sources
These power sources are protected from reverse polarity by protection diodes, allowing multiple
sources to be present simultaneously.
When powering the EVK from either VSHLD or the power header, the Li-Ion battery and USB power
sources can be isolated by cutting jumper NC3 as shown in
alternative external power sources while still powering the module through J8 or J10, VSHLD.
Figure 7: High-voltage power isolation
After applying power to one of the sources, slide SW1 to the ON position to power on the EVK.

3.2 Reset

An active-low reset signal – nRESET – is connected to the NORA-W36 module, the Arduino header
J10, pin 3, and a momentary button switch. Pressing the switch or driving the signal low resets the
NORA-W36. nRESET is pulled high internally, so an open-drain source may be used.
UBX-22035800 - R01
C1-Public
Input range Remarks
5.0 VDC nominal Power provided by upstream USB port
3.3 – 4.2 VDC An external charger may be connected during operation
3.3 – 5.5 VDC Arduino power input
3.0 – 3.6 VDC Arduino shield power
3.0 – 3.6 VDC
Hardware descriptionHardware description
EVK-NORA-W36 - User guide
Figure 7. This allows connecting
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