The Nordic Thingy:91 X™ has three user-programmable RGB LEDs: LED1, LED2, and LED3 (Charge LED).
LED1 is connected to the nRF9151 System in Package (SiP) (M1) and provides visual feedback to the user.
The following figure describes LED1.
The following table describes the nRF9151 SiP GPIOs used to control LED1.
| nRF9151 SiP GPIO | LED1 color |
|---|---|
| P0.29 | Red |
| P0.31 | Green |
| P0.30 | Blue |
LED2 is connected to the nRF5340 System on Chip (SoC) (U6) and provides visual feedback to the user.
The following figure describes LED2.
The following table describes the nRF5340 SoC GPIOs used to control LED2.
| nRF5340 SoC GPIO | LED2 color |
|---|---|
| P0.14 | Red |
| P0.26 | Green |
| P0.15 | Blue |
LED3 is connected to the nPM1300 Power Management Integrated Circuit (PMIC) (U11) LED driver pins and indicates charging and charging error.
The following table describes the nPM1300 PMIC GPIOs used to control the LED3 (Charge LED).
| nPM1300 PMIC pin | LED3 color |
|---|---|
| LED0 | Red |
| LED1 | Green |
| LED2 | Blue |
The following figure shows the locations of the LEDs.