Datasheet
Here are some of the updates you can look forward to when using ItsyBitsy nRF52:
Same size, form-factor as the remaining ItsyBitsy mainboards (https://adafru.it/Ila) - with a similar but not identical
pinout (there's no pins at the end of the board like most other Itsy's due to the radio antenna being there.
Floating point support with Cortex M4 DSP instructions (https://adafru.it/ENz)
32-bit, 3.3V logic and power with power/enable pin
1024 KB flash, 256 KB RAM
2 MB QSPI FLASH chip for storing files and CircuitPython code storage.
Native Open Source USB stack - pre-programmed with UF2 bootloader
Bluetooth Low Energy compatible 2.4GHz radio (Details available in the nRF52840 product specification)
FCC / IC / TELEC certified module
Up to +8dBm output power
21 GPIO, 6 x 12-bit ADC pins, up to 12 PWM outputs (3 PWM modules with 4 outputs each)
Red LED for general purpose blinking, mini DotStar RGB LED for colorful feedback
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.
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.
Can be used with Arduino IDE or CircuitPython
Comes pre-loaded with the UF2 bootloader (https://adafru.it/wbC), 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
Each order comes with one assembled and tested ItsyBitsy nRF52840, with headers that can be soldered in for use
with a breadboard.
So what are you waiting for? Pick up a ItsyBitsy nRF today and be amazed at how easy and fast it is to get started with
the teensiest Bluetooth dev board we have.
© Adafruit Industries https://learn.adafruit.com/adafruit-itsybitsy-nrf52840-express Page 9 of 179










