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Compared to older NRF51-based bluefruit modules, the NRF52832 offers double flash memory, SRAM and a higher performance. The Adafruit Feather NRF52 can be easily programmed with the Arduino IDE. The chipset has an integrated USB controller, so that the board manages without further chip for programming. This has a positive effect on the total price and electricity consumption. Ideal for mobile applications! The board has a connection for 3.7 V Lipo batteries and a charging circuit. The board can be both operated and the battery loaded via the microUSB port. The Feather NRF52 automatically changes from battery to USB operation when the board is connected via USB. The battery voltage can be measured via an analog input of the board. The module is delivered entirely with USB boot loaders for.