Adafruit ItsyBitsy nRF52840 Express - Bluetooth LE

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.

• Floating point support with Cortex M4 DSP instructions
• 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, 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.

• Primary Guide: Adafruit ItsyBitsy nRF52840 Express
• Getting Started with CircuitPython and Bluetooth Low Energy
• NeoPixel Infinity Cube
• NeoPixel Infinity Mirror Coaster

FAQs:

Q: What features does the Adafruit ItsyBitsy nRF52840 Express offer?

A: It features a powerful nRF52840 chip with Bluetooth 5.0, a 32-bit ARM Cortex-M4 processor, 1MB flash memory, 256KB RAM, and a range of I/O options for versatile development.

Q: What types of projects are best suited for the ItsyBitsy nRF52840 Express?

A: This board is ideal for Bluetooth Low Energy (BLE) projects, IoT devices, wearables, and other wireless communication applications requiring compact and efficient hardware.

Q: How do you program the ItsyBitsy nRF52840 Express?

A: You can program the ItsyBitsy nRF52840 Express using the Arduino IDE or CircuitPython. Adafruit provides libraries and guides to help you set up and start programming.

Q: Does the ItsyBitsy nRF52840 Express support USB connectivity?

A: Yes, it includes a built-in USB-C connector for both programming and power, making it easy to connect to your computer or other USB devices.

Q: Can I use the ItsyBitsy nRF52840 Express for BLE communication?

A: Yes, the board supports Bluetooth 5.0 Low Energy (BLE), allowing you to create applications for wireless data transfer, sensor communication, and more.