https://www.futureelectronics.com/m/panasonic . Panasonic PAN1770 Series is based on the Nordic nRF52840 single-chip controller that allows you to attach an external antenna via uFL. With the Cortex®-M4F processor, 256 kB RAM, and the built-in 1 MB flash memory, the PAN1770 Series can easily be used in standalone mode, eliminating the need for an external processor saving complexity, space, and cost.
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