Description
The Adafruit ItsyBitsy nRF52840 Express featuring the Nordic nRF52840 Bluetooth LE processor! Teensy & powerful, with an fast nRF52840 Cortex M4 processor running at 64 MHz and 1 MB of FLASH - this microcontroller board is perfect when you want something very compact, with a heap-load of memory and Bluetooth LE support This Itsy is your best option for tiny wireless connectivity - it can act as both a BLE central and peripheral, with support in both Arduino and CircuitPython.
ItsyBitsy nRF52840 Express is only 1.4" long by 0.7" wide, but has 6 power pins, 21 digital GPIO pins. It even comes with 2MB of QSPI Flash built in, for data logging, file storage, or CircuitPython code.
Key Features
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Floating point support with Cortex M4 DSP instructions
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32-bit, 3.3V logic and power with power/enable pin
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1024 KB flash, 256 KB RAM
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2 MB QSPI FLASH chip for storing files and CircuitPython code storage.
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Native Open Source USB stack - pre-programmed with UF2 bootloader
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Bluetooth Low Energy compatible 2.4GHz radio (Details available in the nRF52840 product specification)
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FCC / IC / TELEC certified module
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Up to +8dBm output power
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21 GPIO, 6 x 12-bit ADC pins, up to 12 PWM outputs (3 PWM modules with 4 outputs each)
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Red LED for general purpose blinking, mini DotStar RGB LED for colorful feedback
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1 x Special Vhigh output pin gives you the higher voltage from VBAT or VUSB, for driving NeoPixels, servos, and other 5V-logic devices. Digital 5 level-shifted output for high-voltage logic level output.
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Native USB supported by every OS - can be used in Arduino or CircuitPython as USB serial console, Keyboard/Mouse HID, even a little disk drive for storing Python scripts.
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Can be used with Arduino IDE or CircuitPython
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Comes pre-loaded with the UF2 bootloader, which looks like a USB storage key. Simply drag firmware on to program, no special tools or drivers needed! It can be used to load up CircuitPython or Arduino IDE.
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