https://www.lairdconnect.com/wireless-
modules/bluetooth-modules
2
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We assume the DVK-BL654-1.0 development kit has its default out-of-the-box settings as described in the BL654 Quick Start
Guide (available from the BL654 product page
https://www.lairdconnect.com/wireless-modules/bluetooth-
modules/bluetooth-5-modules/bl654-series-bluetooth-module-nfc
). In this mode, it is in AT or interactive mode (no
smart
BASIC application loaded or running) on power up.
Figure 1: J12 fitted over pins 1 and 2, and SW3 (reset button)