User's Guide

Table Of Contents
Hardware description
Figure 37: Schematics for the N-MOS transistors
6.12.2 Connectors
In addition to the N-MOS drain and source on P7, power domains and extra GPIOs can be found on
connectors P3-P6.
For more information, see Connector pinouts on page 38.
Figure 38: Nordic Thingy:91 external connectors
Figure 39: Interface connectors
6.12.2.1 Connector pinouts
Pin Signal Description
1 GND Ground
2 V
Li-Ion
Battery voltage
Table 6: Pinout of connector P3
Pin Signal Description
1 GND Ground
2 1V8 Regulated 1.8 V domain
Table 7: Pinout of connector P4
4418_1336 v1.2
38