The nRF52840 DK has multiple power options.
The power options are the following:
- USB connector J2 for the interface MCU (5 V)
- USB connector J3 for the nRF52840 System on Chip (SoC) (5 V)
- Lithium polymer (Li-Po) battery connectors J6 or P27 (2.5–5.0 V)
- VIN 3–5 pin on P20 (3.0–5.0 V)
- External supply on P21 (1.7–3.6 V)
- Coin cell battery
Figure 1. Power supply options (front)
Figure 2. Power supply options (back)
