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Introducing the Adafruit Bluefruit LE Friend Downloads

Introducing the Adafruit Bluefruit LE Friend

Your new BLE BFF!

by Kevin Townsend

published November 19, 2014, last edited February 04, 2026

posted in Adafruit Products

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Overview
QuickStart Guide
Command Mode
- Standard AT
- General Purpose
- Hardware
- Beacon
- BLE Generic
- BLE Services
- BLE GAP
- BLE GATT
- Debug
- History
Command Examples
Field Updates
- DFU on iOS
- DFU on Android (4.3+)
BLE Sniffer
GATT Service Details
- UART Service
Software Resources
Device Recovery
BLE FAQ
Downloads

Single page
Feedback? Corrections?
Text View

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Bluefruit LE Friend - Bluetooth® Low Energy 4.0 - nRF5182

$19.95
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SEGGER J-Link EDU - JTAG/SWD Debugger
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SEGGER J-Link BASE - JTAG/SWD Debugger

$499.95
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10-pin 2x5 Socket-Socket 1.27mm IDC (SWD) Cable - 150mm long

$2.95
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JTAG (2x10 2.54mm) to SWD (2x5 1.27mm) Cable Adapter Board

$4.95
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Getting Started with Bluetooth Low Energy by KTOWN
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38

Beginner

Project guide

Downloads

Files

EagleCAD PCB files on GitHub
Bluetooth LE module Datasheet
nRF51822 information from Nordic Semiconductor
v3.0: Uses a CP2104 USB-to-Serial converter chip, drivers available here
v2.0: Uses an FT231x (FTDI) USB-to-Serial converter chip, drivers are available for all operating systems here

Schematics

Click to embiggen

Schematic and Fab Print for CP2102N Version

The part listed on the schematic reads C2104 - the footprint and pinouts are the same as the C2102N

v3.0 Schematic (CP2104 Based)

v2.0 Schematic (FTDI Based)

Page last edited February 04, 2026

Text editor powered by tinymce.

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