{"title":"Adafruit ItsyBitsy nRF52840 Express - Bluetooth LE","handle":"adafruit-itsybitsy-nrf52840-express-bluetooth-le","url":"/products/adafruit-itsybitsy-nrf52840-express-bluetooth-le","description":"The Adafruit ItsyBitsy nRF52840 Express brings Bluetooth Low Energy connectivity to the tiny ItsyBitsy form factor. Powered by the Nordic nRF52840 Cortex M4 at 64 MHz with 1 MB Flash, 256 KB RAM, and 2 MB QSPI Flash, it can act as both a BLE central and peripheral device — perfect for compact wireless projects.\n\nAt just 1.4\" × 0.7\", it supports both CircuitPython and Arduino IDE programming. The UF2 bootloader makes flashing as simple as dragging a file to a USB drive, and the FCC/IC/TELEC certified radio module provides reliable BLE connectivity with up to +8 dBm output power.\n\nKey Features\n\n\nNordic nRF52840 Cortex M4 – 64 MHz with floating point and DSP support\n\nBluetooth Low Energy – BLE central and peripheral support; FCC/IC/TELEC certified\n\nUp to +8 dBm Output Power – Strong wireless range for BLE applications\n\n1 MB Flash, 256 KB RAM – Generous memory for complex wireless projects\n\n2 MB QSPI Flash – Onboard storage for CircuitPython code and data files\n\nCircuitPython & Arduino – Dual programming environment support\n\nNative USB – Serial console, HID keyboard/mouse, MIDI, or disk drive\n\n21 GPIO Pins – 6× 12-bit analogue inputs, up to 12× PWM outputs\n\nVHigh Output & Level-Shifted Pin 5 – 5V logic output for NeoPixels, servos, and LEDs\n\nUF2 Bootloader – Drag-and-drop firmware flashing via USB\n\nBuilt-in DotStar RGB LED – Plus red LED for status indication\n\n3.3V Logic – With power/enable pin and automatic USB/battery switching\n\n\nIdeal For\n\nCompact Bluetooth Low Energy projects and wireless sensors\nBLE-connected wearables and IoT devices\nWireless HID devices — BLE keyboards, mice, and controllers\nCircuitPython wireless prototyping\n\n\nPackage Contents\n\n1× Adafruit ItsyBitsy nRF52840 Express\n1× Header Strip (unsoldered)\n\n\n\nNote: The pinout is similar to other ItsyBitsy boards but not identical — there are no pins at the end of the board due to the radio antenna placement.\n\n\nResources\n\nAdafruit ItsyBitsy nRF52840 Guide\nCircuitPython.org\n","vendor":"Adafruit","product_type":"physical","in_stock":true,"options":[],"variants":[{"id":2944,"title":"Default Title","sku":"AF-4481","price":41.42,"compare_at_price":0.0,"on_sale":false,"in_stock":true,"available_quantity":56,"option1":"Default Title"}]}