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Adafruit Feather nRF52840 Express

Name: Adafruit Feather nRF52840 Express
Brand: Adafruit
SKU: 1104418
Price: 3811 INR
Availability: InStock

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AI Summary

IoT Development Boards for everyday users

The Adafruit Feather nRF52840 Express by Adafruit is a mid-range iot development boards designed for everyday users. It features Item Type: ESP32 Based and Flash Memory: 1MB.

₹3,812

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Total: ₹3,812

Buying tip: A quality investment for dependable performance and premium build quality.

Estimated delivery: 24 Aug – 7 Sept

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Quick Specs

Item Type: ESP32 Based

Flash Memory: 1MB

Clock Frequency: 64

Product Type: Development board

Model No. / Name: nRF52840 ARM Cortex

Operating Voltage (VDC): 3.3

Ideal For

Everyday convenience

SKU: robu-1104418Category: IoT Development Boards

About This Product

The Adafruit Feather nRF52840 Express by Adafruit is a mid-range iot development boards designed for everyday users. It delivers reliable performance at an accessible price.

Key Specifications

Item Type: ESP32 Based
Flash Memory: 1MB — effortless multitasking
Clock Frequency: 64 — smooth, flicker-free operation
Product Type: Development board
Model No. / Name: nRF52840 ARM Cortex
Operating Voltage (VDC): 3.3 — works with standard household power
Clock Speed: 64MHz — smooth, flicker-free operation
Program Memory (KB): 256 — effortless multitasking

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The Adafruit Feather Bluefruit Sense takes the popular Feather nRF52840 Express and adds a smorgasbord of sensors to make a great wireless sensor platform. This Feather microcontroller comes with Bluetooth Low Energy and native USB support featuring the nRF52840! This Feather is an 'all-in-one' Arduino-compatible + Bluetooth Low Energy with built-in USB plus battery charging. With native USB it works great with CircuitPython, too. Like the Feather nRF52840, this chip comes with Arduino IDE support - you can program the nRF52840 chip directly to take full advantage of the Cortex-M4 processor, and then call into the Nordic SoftDevice radio stack when you need to communicate over BLE. Since the underlying API and peripherals are the same for the '832 and '840, you can supercharge your older nRF52832 projects with the same exact code, with a single recompile! This Feather is also a BLE-friendly CircuitPython board! CircuitPython works best with disk drive access, and this is the only BLE-plus-USB-native chip that has the memory to handle running a little Python interpreter. The massive RAM and speedy Cortex M4F chip make this a good match. Make centrals or peripherals with the ease of CircuitPython.

FEATURES:

ARM Cortex M4F (with HW floating point acceleration) running at 64MH
1MB flash and 256KB SRAM
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
1.7v to 3.3v operation with internal linear and DC/DC voltage regulators
21 GPIO, 6 x 12-bit ADC pins, up to 12 PWM outputs (3 PWM modules with 4 outputs each)
Pin #3 red LED for general purpose blinking, NeoPixel for colourful feedback
Power/enable pin
Measures 2.0x0.9x0.28" (51x23x7.2mm) without headers soldered in
6 grams
4 mounting holes
Reset button
SWD connector for debugging
Works out of the box with all Adafruit FeatherWings (Even the UART-using ones like the GPS FeatherWing)

Package Includes:

1 x Adafruit Feather nRF52840 Express

Setup Guide

Identify the pins

Locate VCC (power), GND (ground), and data pins (SDA/SCL for I2C, MOSI/MISO for SPI, or TX/RX for UART). Refer to the pinout diagram on the product page.

Wire to your microcontroller

Connect VCC to 3.3V or 5V (check the module spec), GND to GND, and data pins to the appropriate GPIO pins on your Arduino or Raspberry Pi.

Install libraries

In Arduino IDE, go to Sketch → Include Library → Manage Libraries and search for the sensor library. Install the recommended version.

Upload example sketch

Open File → Examples → [library name] → Basic Example. Upload to your board and open Serial Monitor to view output.

Calibrate if needed

Some sensors (temperature, humidity, distance) may need a short warm-up period or calibration. Run the calibration sketch if provided.