User's Manual

NINA-B1 series - Data Sheet
UBX-15019243 - R05 Early Production Information Pin definition
Page 16 of 35
3.2 Pin assignment in the NINA-B11x firmware
The pin-out as shown in Figure 3 describes the pin configuration used in the u-blox NINA-B11x firmware.
A = Analog function capable pin
Figure 3: NINA-B1 series pin assignment (top view) while using u-blox NINA-B11x firmware
It is required to follow this pin layout when using the u-blox NINA-B11x firmware. No
additional interfaces can be added.
Do not apply an NFC field to the NFC pins when they are configured as GPIOs as it can cause
permanent damage to the module. When driving different logic levels on these pins in GPIO mode, a
small current leakage will occur, ensure that they are set to the same logic level before entering into any
power saving modes. See section 4.2.6 for more information.