5V via Micro USB or 3.7V LiPo via JST connector

3 devices

Adafruit Feather nRF52 Pro

Dev Board

Bluetooth 5.0 LE Feather board with nRF52832 ARM Cortex M4F at 64MHz, 512KB flash, 64KB SRAM, Apache Mynewt bootloader, SWD debug port, and built-in LiPo charging. For advanced BLE 5.0 open-source app

Nordic nRF52832 ARM Cortex M4F64 KB512 KB19 GPIOBLE BLE 5.0

Ble Beacons wearable Iot Prototyping Bluetooth Hid

~$28View

Adafruit Feather M4 Express

Dev Board

High-performance Feather with ATSAMD51J19 Cortex M4F at 120MHz, 192KB RAM, 512KB flash, 2MB SPI flash, dual 12-bit DAC/ADC, AES-256 hardware crypto, LiPo charging, 21 GPIO, and native USB HID. Feather

Microchip ATSAMD51J19 ARM Cortex M4F192 KB512 KB21 GPIO

Audio Synthesis High Speed Dsp education prototyping

~$23View

Adafruit Feather nRF52840 Express

Dev Board

Feather board with nRF52840 ARM Cortex-M4F at 64MHz, BLE 5.0, native USB (CDC/HID/MIDI/MSC), 1MB flash, 256KB SRAM, 2MB QSPI flash, 21 GPIO, SWD debug, and LiPo charging. Supports Arduino and CircuitP

Nordic nRF52840 ARM Cortex-M4F256 KB1 MB21 GPIOBLE BLE 5.0

Ble Beacons wearable Usb Hid Iot Sensor Platform

~$25View

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More to explore — popular traits shared by devices with Power: 5V via Micro USB or 3.7V LiPo via JST connector.

Wearable ble-beacons Development Board BLE 5.0 512 KB 21